NORTHEASTERN U. S. SEISMIC NETWORK · 2019. 4. 20. · 741320.0 w 743236.0 w 740909.0 w 735134.2 w...

~~

Paul W. Pomeroy, United States Geological Survey

E.F.

Weston Observatory of Boston CollegeMassachusetts Institute of Technology

University of ConnecticutLamont-Doherty Geological Observatory of Columbia University

Pennsylvania State UniversityDelaware Geological Survey

Ma;ne Geological Survey

NORTHEASTERN U. S. SEISMIC NETWORK

Nuclear Regulatory Commission

Chiburis, University of Connecticut

'-

Compiled and Edited by

BULLETIN No.5OF

SEISMICITY OF THE NORTHEASTERN UNITED STATESOctober 1,1976 - December 31, 1976

Coordinator

June 1977

MEMBERS

UCONN-NUREG-O208-10

United States Geological SurveyNational Science Foundation

New York State Energy and Resources Development AuthorityNew York State Science Service

R.O. Ahner, Weston Observatory

ACKNOWLEDGEMENTS

Partial or full support from various agencies for the

operation of the Northeastern U.S. Seismic Network is grate-

fully acknowledged. The agencies providing support to members

of NEUSSN are as follows:

The Nuclear Regulatory Commission - Office of Reactor

Safety Research,The United States Geological Survey - Office of Earth-

quake Studies,The National Science Foundation - Geophysics Program,

The New York State Energy and Resources Development

Authority, andThe New York State Science Service.

Data from the Seismic Network operated by the ConsolidatedEdison Company of New York and from an array operated by Weston

Geophysical Engineers in New Hampshire were provided to NEUSSN

and the receipt of these data is gratefully acknowledged.

In adddition to the above operational support, equipmentwas also provided by the Office of Environmental Geology of

the u.S. Geological Survey to members of NEUSSN.

The advanced Research Projects Agency of the Departmentof Defense provided a number of geophones and amplifiers to

all members of NEUSSN.

2.

ABSTRACT

This report is the fifth quarterly bulletin of seismicity

in the northeastern United States and covers the period October

December 1976. Included are geographic maps of the seismic

station locations, the epicenters for the quarter, and the cumulative

epicenters for the five quarters. Also included are tables of the

station locations and of arrival times, amplitudes, and periods

for the fifth quarterly epicenters.

3.

INTRODUCTION

This report is the fifth quarterly bulletin of seismicity

in the northeastern United States for the period October

December, 1976. The organizations supplying data for this bulletin

are '~eston Observatory of Boston College, Lamont-Doherty Geological

the Massachusetts Institute ofObservatory of Columbia University,

data for earthquakes in southeastern New York and northern New

Jersey were supplied by the Consolidated Edison Indian Point network

Arrival time data for events in New Hampshire were supplied by

Epicentral data for events in CanadaWeston Geophysical Engineers.

near the United States were supplied by the Earth Physics Branch,

Department of Energy, Mines and Resources, Canada.

Thirteen seismic stations operating during this reporting

period were not listed in the previous bulletin. The thirteen new

stations are DIA-ME, D2A-ME, D3A-ME, DUX-MA, CSNH, GHNH, LANH,

MBNH, WBNH, BGR-NY, ALV-VT, BRV-VT, and COV-VT. stations ELM-NY,

FOR-NY, HMB-NY, and WLI-NY were not operating during this reporting

Station UWL-NY was erroneously listed as WWL in theperiod.

Table I is a list by state, of the stationsprevious bulletin.

The format ofoperating during the period October - December 1976.

the information included in the tables is as follows:

Three letter station code, as recognized by the1.

National Earthquake Information Center of the U.S

(except as noted by an asteriskGeological Survey

following the station code).

4

2. Station latitude, degrees-Minutes-seconds, north.

Station longitute, degrees-minutes-seconds, west.3.4. Station elevation, meters

s. Geographic name of station.

Network operator responsible for station.6.Figure 1 is a geographic map of the Northeastern U.S. Seismic

there are three regions of coverageNetwork (NEUSSN). In New York,

having clusters of stations too dense to represent separately:

near Attica in the west, near Blue Mountain Lake in the north, and

the stations of the Indian Point nuclear facility in the southeast

Similarly the array in northern Maine near Dickey and the network

in New Hampshire are too closely spaced to be clearly represented.

NORTHEASTERN u. S. SEISMICITY

sixty-seven earth-During the period covered by this bulletin,

quakes were detected and located in the northeastern United States;

included in this total are forty-eight earthquakes of magnitude less

In addition,than one in the Blue Mountain Lake region of New York.

earthquakes occurred in Canada having an epicenter withinfifteen

One of these earthquakes was100 kilometers of the u.s. border.

Figure 2 is a geographic map of thefelt across northern Maine.

Two earthquakes, one inepicenters for October - December 1976.

southeastern Copnecticut and one in northern Maine were heard but

probably not felt. Table II is a chronological list of the

epicenters in Figure 2 with the following format:

5.

1. Date and geographic name of the event.

2. The source of epicenter determination

Lamont-Doherty Geological Observatory

University of Connecticut

Weston Observatory

Massachusetts Institute of Technology

Earth Physics Branch, Dept. of Energy, Mines

and Resources, Canada

3. Origin time of the event, hours-minutes-seconds, UTC.

4. Event latitude, degrees north.

Event longitude, degrees ~'est.5.Root-mean-square error of the least-squares solution.6.

Most magnitudes were computed using7. Event magnitudes.

the relation developed by Nuttli for the "vertical

component Lg wave"; although the wave periods of the

events in Table II are often much less than one second,

the computed magnitudes appear to be consistent within

Magnitudes computed using Nuttli'sthe network.

relation are labelled MBN.

If the solution was restrained8. Event depth, kilometers.

to a particular depth, the letter R is appended

For the events that have epicenters determined by more than

one source, each of the locations is listed.

EARTHQUAKE DATA

The station arrival times and amplitudes used for epicenter

6.

and magnitude calculations are listed in Table III, as well as

The format forthe information already included in Table II.

the additional information in Table III is as follows:

1. Station code.

2. Emergent (E) or impulsive (I), followed by phase type:

If the phase is impulsive,P, PG, p* , PN, S, SG, S*, SN.

direction of first motion is also included if the system

compression (C), dilation (D) or nodal (X) .polarity is known:

3. Station arrival time, hour-minute-second, UTC.

For those events having4 Epicentral distance, kilometers.

more than one epicenter reported, the first epicenter

listed is generally used for distances.

Peak-to-peak ground motion, in millimicrons, of the5.maximum recorded amplitude of the vertical-component

All reported amplitudes havesignal (Rayleigh wave).

been corrected for system response.

Period, in seconds, of the wave from which amplitude6.was measured.

Nuttli magnitude as computed from the amplitude, period7.and distance.

SUSPECTED AND POORLY LOCATED EARTHQUAKES

In addition to the earthquakes listed in Table II, eight

events were detected which could not be definitely identified as

being earthquakes or not enough arrivals were detected to allow

This class of events is listedan acceptable computer solution.

in Table IV, which has the same format as Table III.

N:>rth Iati 'bode , degr~00V

0mIt)

0CX)

V

0VV

0a>~

0to-V

0CDV

0It)V

0~V

0C\JV

0

V

0Vto

0<D<D

0CX)<D

0

0r0-

oC\Jr0-

oVro-

II)

I'0,

f~

0

CDt-

0

a>,...

01ml

Figure 1. SeiSllic stations ~ating during the I:eriod

Ck:tober - ~r 1976.

North Latitude, degrees

0

0V

00')r<)

0mv

0VV

0CD~

0t"-V

0(0V

0In

q-

~q-

0C\JV

0

V

0V(D

0<D<D

0a>CD

CI2

Q)Q)~C'IQ)

'0

,Q)

'0='

4JorofC'I=0H

oI.JU)Q)~

0wroo.

0

m~

0

0CO

Earthquake epicenters during the periodFigure 2.October - December 1976

0

0, 0

C\J, 0

V,

North Latitude, degrees

co

Q)Q)H

~11)

'0

,

Q)

'0~

.IoJ.,of

~~0H

~CO

Q)

~

Figure 3. Earthquake epicenters during the period

October 1975 - December 1976.

TABLE ILIST OF OPERATING SEISMIC STATIONS BY STATE

OCTOBER - DECEMBER 1976

LATITUDE LONGITUDE ELEVATIONDGMNSEC DGMNSEC METERS

STAID OPERATOR

CONNECTICUT

UCTUCTUCTUCTUCTOCTOCT

APTBCTBPTECTHDM .

TMTOCT

41414141414141

720350.0 W732302. W731432. W732440.8 W723123.6 W724756. W721502. W

36983

34224

290149

AVERY POINT, CTBROOKFIELD CENTER, CTBRmGEPORT, CTELLSWORTH, CTHADDAM, CTTALCOTT MOUNTAIN, CTSTORRS, CT

DELAWARE

46 DGSNED 394215.2 N 754229.5 W NEWARK, DE

MAINE

ALLAGASH, ME WESCARIBOU, ME WESDICKEY, ME WESDICKEY, ME (KELLY l-rIN.) WESDICKEY, ME (BROWNS EROOK) WESEAST l-tACHIAS, ~IE WESMILO, ME WESTURNER , ME WES

216250305402259

20140113

AGMCBHDIA*D2A*D3A*EHKHIMTRM

470454. N465557. N470330.8 N470749.3 N470515.2 N444421. N451437.0 N441534.9 N

690124. W680715. W690556.2 .W690908.8 W691007.4 W672922. W690225.0 W701518.3 W

MASSACHUSETTS

HITWESHITHITWESHIT

275215

1806088

DUXBURY, MAFALL RIVER, MAGLOUCESTER', MAHARVARD, MAWESTON, MAWESTFORD, MA

DUXFLRGLOHRVWESWFK

420407. N414300.0 N423825. N423023. N422304.9 N423638. N

704604. w710717.5 w704338. W713330. W711919.5 W712926. W

NEW HAMPSHIRE

WESWGEMITWGEWESWGEWGEMITMITWGEMIT

472290

24300180215400280659215220

BNHCSNH*DNHGHNH*HNHLANH*MBNH*ONHPNHWBNH*WNB

443526. N434857.6 N430721. N435212.0 N434219. N433527.6 N434337.2 N431645. N430539. N433614.4 N435206. N

711523. W712743.2 W705341.3 W710708.4 W721708. W712924.0 W711919.2 W713020. W720809. W710556.4 W712359. W

BERLIN, NHCENTER SANDWICH, NHDURHAM, NHGOE HILL, NHHANOVER, NHLACONIA, NHMOULTON BOROUGH , NHOAKHILL, CONCORD, NHPITCHER MOUNTAIN, h"HWOLFEBORO, NHWHITEFACE. NH

1857293613195004290848414954

5 NN

5 N7 N8 N

NN

of 3



LATITUDE LONGITUDE ELEVATIONDGMNSEC DGMNSEC METERS

STAID OPERATOR

NEW JERSEY

410103.6 N410515.0 N410026.4 N

360-363

229

GREENPOND, NJOGDENSBURG, NJP AHAQUARRY, NJ

LDOLDOLDO

GPDOGDPQN

NEW YORK

ADNALFALXAPH

435000.0 N421331.2 N441921.0 N435028.8 N

137671122564

ADAMS, NY LDOALFRED , NY LDOALEXANDER BAY, NY LDOAIRPORT HANGAR, BLUE MIN, LDO

NY742243.8 W742656.4 W742736.0 W781007.8 W742854.6 W753053.4 W781424.0 W743145.6 W735433.0 W733318.0 W745858.2 W741320.0 W743236.0 W740909.0 W735134.2 W733508.4 W

LDOLDOLDOLDOLDOLDOLDOLDOLDOLDOLDOLDOLDOLDOLDOLDO

BGR

CLY

CTR

DNY

EGN

HNY

~IRH

OCN

PAL

PNY

PTR

TBR

UWL

WND

WNY

WPR

444931.8 N435104.8 N435227.0 N425010.8 N435134.1 N424954.6 N425021.0 N435305.4 N410015.0 N445003.0 N443421.0 N410830.0 N435016.2 N422015.0 N442327.6 N411516.8 N

329579585381549500448701

91177238261561602598152

BANGOR, NYCRYSTAL LAKE, NYCASTLE ROCK, NYDERSAM, NYEAGLE'S NEST, NYHAMIL TON, NYMERCHANTS HILL, NYOVERCASTLE ROCK, NYPALISADES, NYPLATTSBURG, NYPOTSDAM, NYTABLEROCK, NYUTOWANA LAKE, NYWINDHAM, NYWILMINGTON, NYWARD POUND RIDGE, NY

CONCONCONCONCONCONCONCONCONCONCONCONCON

BLM*CHR*DBM*DPL*GOB*GSC*IPS*OSB*SNP*SPS*SRM*STL*WGL*

411947.411229.411740.411510.411946.411558.411602.412137.411427.411807.411342.411119.412132.

NNNNNNNNNNNNN

735718.741316.735830.735439.735519.740014.735654.735526.735816.735326.740050.740013.735358.

wwwwwwwwwwwww

134183

2767

150110

BLUM, NYCALLS HOLLOW ROAD, NYDUNDERBURG MOUNTAIN, NYDELLI PAOLI, NYGOBBELET, NYGIRL SCOUT CAMP, NY

21230

168165125152

OSBORN, NYSTONEY POINT, NYST. PETERS SCHOOL, NYSCHERMAN, NYSTILES, NYWEGEL, NY

742739.0 W743545.0 W750509.0 W

760710.8 W774749.8 W755540.8 W742949.2 W

of 3



LATITUDE LONGITUDE ELEVATIONDGMNS EC DGMNS EC METERS

STAID OPERATOR

PENNSYLVANIA

8020 W7959 W7622 W7508 W775154.0 W

PSUPSUPSUPSUPSU

BVRERIMLVPHISCP

4042 N4208 N395930. N4001 N404142.0 N 352

BEAVER, PAERIE, PAMILLERSVILLE, PAABINGTON, PASTATE COLLEGE, PA

RHODE ISLAND

40 UCTLAF 413403. N 713024. w LAFAYETTE, RI

VERMONT

LDOLDOLDOLDOLDO

ALVBRVCOVESJMDV

4444444443

730248.723600.730845.730154.731052.

271402

85

ST. ALBANS, VTBARRE , VTCOLCHESTER, VTESSEX JUNCTION, VTMIDDLEBURY, VT134

.STATION CODES NOT SUBMITTED TO OR APPROVED BY THE NEIC.

OPERATOR. CODE

CON -DGS -LDO -KIT -PSU -UCT -WES -\iGE -

CONSOLIDATED-EDISON, INDIAN POINT, NEW YORKDELAWARE GEOLOGICAL SURVEYLAMONT-DOHERTY GEOLOGICAL OBSERVATORY OF COLUMBIA UNIVERSITYMASSACHUSETTS INSTITUTE OF TECHNOLOGYPENNSYLVANIA STATE UNIVERSITYUNIVERSITY OF CONNECTICUTWESTON OBSERVATORY OF BOSTON COLLEGEWESTON GEOPHYSICAL ENGINEERS

47~12~34~31]59~

~o.10.19.1L2..7.

NN

INNN

wwwW

2. W

TABLE II

EPICENTER LISTNORTHEASTERN UNITED STATES

AND ADJACENT REGIONSOCTOBER - DECEMBER 1976

DEPTHKM

H-TIME (UTC)DR !om SEt

RMSSEt

MAGNITUDESOURCE LATITUDEDEG

LONGITUDEDEG

BLUE MOUNTAIN LAKE, NEW YORK02 59 43.86 N 74.48 W

01 OCT*LDO MBN < 1

NEW YORK-CANADA BORDER07 OS 03.2 44.99 N

03 OCT*LDO MBN-2.2 014.14 W O.17SEC

03 OCT*LDO

BLUE ~roUNTAIN LAKE, NEW YORK10 16 43.86 N 74.48 W MBN < 1

04 OCT*LDO

BLUE .fOUNTAIN LAKE, NEW YORK15 55 43.86 N 74.48 W MBN < 1

05 OCT*LDO

BLUE MOUNTAIN LAKE. NEW YORK03 41 43.86 N 74.48 W MBN < 1

05 OCT*WES

DOVER-FOXCROFT, MAINE08 23 04.5 45.19 N MBN-l.7 OR69.15 W O.70SEC

NEAR HILLINOCKET. MAINE11 08 54.2 45.62 N

06 OCT*WES MBN-2.1 OR69.09 w O.60SEC

06 OCT*LDO

BLUE MOUNTAIN LAKE, NEW YORK23 31 43.86 N 74.48 W MBN < 1

01 OCT*LDO


07 OCT*LDO MBN <1

BLUE MOUNTAIN LAKE, NEW YORK13 07 43.86 N 74.48 W

10 OCT*LDO


12 OCT*LDO


17 OCT*LDO


17 OCT*LDO


BLUE MOUNTAIN LAKE. NEW YORK13 31 43.86 N 74.48 W

17 OCT*LDO MBN < 1

OF 6TABLE II CONTINUED

17 OCT*LOO MBN < 1

BLUE MOUNTAIN LAKE, NEW YORK13 33 43.86N 74.48W

17 OCT*LDO ~..BN < 1

BLUE MOUNTAIN LAKE, NEW YORK13 36 43.86W 74.48W

17 OCT*LDO MBN < 1


20 OCT*LDO

LYON MOUNTAIN, NEW YORK23 42 08.4 44.69N 1O.12SEC MBN=2.873.89W

SAINT SIMEON, QUEBEC (FELT:LA ~mLBAIE TO MADAWASKA,~~INE)20 58 18.0 47.79N 69.79W 0.9 SEC MBN=4.420 58 17.1 47.85N 69.79W 0.66SEC

23 OCT*EPB*WES OR

23 OCT*EPB*WES

SAINT SIMEON, QUEBEC AFTERSHOCK21 22 47.79N 69.79W21 22 37.5 47.81N 69.75W MBN=1.9 ORO.14SEC

23 OCT*EPB*WES MBN=3.0 OR

SAINT SIMEON, QUEBEC AFTERSHOCK21 23 47.79N 69.79W21 23 07.8 47.83N 69.68W O.48SEC

23 OCT*EPB*WES

SAINT SIMEON,QUEBEC AFTERSHOCK21 53 47.79N 69.79W21 53 13.2 47.83N 69.70W O.34SEC MBN=1.6 OR

23 OCT*WES

SAINT SIMEON,QUEBEC AFTERSHOCK22 07 09.0 47.85N 69.59W MBN=1.8O.O8SEC OR

24 OCT*WES

SAINT SIMEON,QUEBEC AFTERSHOCK01 59 09.4 47.83N 69.70W MBN=1.6O.18SEC OR

24 OCT*EPB*WES

SAINT SIMEON, QUEBEC AFTERSHOCK10 49 45.0 47.82N 69.84W10 49 46.3 47.78N 69.81W

0.0 SEC0.65SEC

MBN=3.6MBN=3.3 OR

24 OCT*EPB*WES MBN=1.8O.17SEC OR

SAINT SIMEON, QUEBEC AFTERSHOCK11 22 47.79N 69.79W11 22 06.4 47.79N 69.76W

24 OCT*WES

SAINT SIMEON, QUEBEC AFTERSHOCK18 11 19.1 47.77N 69.89W O.19SEC MBN=2.0 OR

27 OCT*EPB*WES MBN=1.7 ORO.79SEC

SAINT SIMEON, QUEBEC AFTERSHOCK02 23 47.79N 69.79W02 23 19.4 47.75N 69.79W

3 OF'J'ABLE II CONTINUED PAGE 6

27 OCT*LDO

BLUE MOUNTAIN LAKE, NEW YORK05 57 43.86N 74.48W < 1~N

27 OCT*LDO

BLUE MOUNTAIN LAKE I NEW YORK06 49 43.86N 74.48W < 1MBN

27 OCT*LOO

BLUE MOUNTAIN LAKE,NEW YORK10 34 43.86N 74.48W < 1MBN

28 OCT*LDO

DENVILLE,NEW JERSEY FORESHOCK01 10 40.89N 74.49W MBN < 1

28 OCT*LDO

DENVILLE ,NEW JERSEY01 13 31.7 40.89N O. 07SEC MBN < 174.49W 0

28 OCT*LDO

DENVILLE,NEW JERSEY06 47 40.89N 74.49W MBN < 1

30 OCT*LOO

BLUE MOUNTAIN LAKE, NEW YORK18 07 43.86N 74.48W MBN < 1

31 OCT*WES

SAINT SIMEON,QUEBEC AFTERSHOCK04 23 13.7 47.80N 69.85W O.SlSEC MBN=2.2 OR

01 NOV*WES

SAINT SIMEON,QUEBEC AFTERSHOCK17 51 26.1 47.S2N 69.5SW O.36SEC MBN=2.3 OR

OJ NOV*LOO


OS NOV.WES

SAINT SIMEON,QUEBEC AFTERSHOCK11 40 24.8 47.79N 69.72W O.23SEC MBN=2.2 OR

OS NOV*LDO

RAQUETTE LAKE, NEW YORK18 07 48.7 43.79N 74.59W O.lOSEC 8.7

08 NOV*LDO


10 NOV*WES

SAINT SIMEON, QUEBEC AFTERSHOCK04 05 06.1 47.78N 70.22W O.27SEC MBN=2.1 OR

14 NOV*LOO


15 NOV*WES

LACONIA, NEW HAMPSHIRE15 20 37.5 43.56N 71.62W O.45SEC OR

17 NOV*LOO

BLUE MOUNTAIN LAKE,NEW YORK07 07 43.86N 74.48W <1MBN

17 NOV*LDO

BLUE MOUNTAIN LAKE, NEW YORK11 51 43.86N 74.48W <1MBN

6TABLE II CONTINUED PAGE 4 OF

19 NOV*LDO

BLUE MOUNTAIN LAKE, NEW YORK~8 15 ~3.86N 74.48W < 1.MEN

22 NOV*LDO

NORTH EASTERN YONKERS,NEW YORK(FELT)04 43 13.4 41.00N 73.86W 0.13SEC MBN=1.9 5

22 NOV*LDO

BLUE MOUNTAIN LAKE,NEW YORK06 28 43.86N 74.48W MBN <

22 NOV.WES

LACONIA,NEW H~WSHIRE2249 38.0 43.S4N 71.60W O.18SEC MBN=1.8 OR

23 NOV*LDO

BLUE MOUNTAIN LAKE,NEW YORK18 57 43.86N 74.48W MBN < 1

24 NOV*LDO

BLUE MOUNTAIN LAKE, NEW YORK10 40 43.86N 74.48W < 1MBN

25 NOV*LDO

BLUE MOUNTAIN LAKE, NEW YORK01 14 43.86N 74.48W < 1MEN

25 NOV*LDO

BLUE MOUNTAIN LAKE I NEW YORK05 01 43.86N 74.48W < 1MBN

25 NOV*LDO

BLUE MOUNTAIN LAKE I NEW YORK14 29 43.86N 74.48W MBN < 1

26 NOV*LDO

BLUE MOUNTAIN LAKE, NEW YORK06 59 02 43.86N 74.48W < 1MBN

26 NOV*LDO

BLUE MOUNTAIN LAKE, NEW YORK06 59 41 43.86N 74.48W MBN < 1

28 NOV*LDO

BLUE MOUNTAIN LAKE ,NEW YORK21 30 43.86N 74.48W < 1MBN

28 NOV*LDO


01 DEC*LDO

BETWEEN POTSDAM AND MAS SENA, NEW YORK18 51 44.0 44.89N 74.82W 0.21SEC MBN=2.1 0

03 DEC*LDO

NEAR OGDENSBURG, NEW YORK08 13 18.7 44.77N 75.44W 4.4O.28SEC MBN=1.6

05 DEC*LDO

SCHOOLEY'S MOUNTAIN,NEW JERSEY16 32 06.9 40.77N 74.76W

(FELT)O.O7SEC MBN=1.8 3.4

07 DEC*LDO

SCHOOLEY'S MOUNTAIN,NEW JERSEY04 55 07.2 40.77N 74.76W 5.1O.OSSEC MBN=1.7

';l'ABLE II CONTINUED 6PAGE 5 OF

07 DEC*LDO

BLUE MOUNTAIN LAKE, NEW YORK~5 13 43.86N 74.48W MBN < 1

07 DEC*LOO

SOUTH OF POTSDAM, NEW YORK23 59 30.2 44.43N 75.07W O.llSEC MBN=1.5 2.4

09 DEC*LOO


11 DEC*LDO


14 DEC*LDO


14 DEC*WES

NEAR DICKEY,MAINE (HEARD)12 23 35.4 47.10N 69.13W O.OSSEC OR

15 DEC*LDO


16 DEC*WES

NEAR DICKEY, MAINE17 26 12.4 47.12N 69.17W O.O9SEC OR

17 DEC*UCT

SOUTHEASTERN CONNECTICUT (HEARD)10 30 51.6 41.41N 12.01W 0.215EC MBN=2.2 OR

23 DEC*WES

BRISTOL, NEW BRUNSWICK09 25 06.8 46.58N 67.4SW O.21SEC MBN=2.4 OR

25 DEC*LDO


25 DEC*LOO

BLUE ~OUNTAIN LAKE, NEW YORK02 47 43.86N 74.48W MBN < 1

26 DEC*LDO


29 DEC*LDO

NEAR BURLINGTON I VERMONT00 02 54.7 44.42N 73.14W O.24SEC MBN=1.7 1

30 DEC*LOO


30 DEC*LDO


31 DEC*LDO

BLUE MOUNTAIN LAKE, NEW YORKOS 36 43.86N 74.4SW MBN < 1

OF 6TABLE II CONTINUED


31 DEC*LOO MBN < 1

*SOURCEDGS - DELAWARE GEOLOGICAL SURVEYEPB - EARTH PHYSICS BRANCH, DEPT. OF ENERGY, MINES AND RESOURCES, CANADALDO - LAMONT-DOHERTY GEOLOGICAL OBSERVATORY OF COLUMBIA UNIVERSITYHIT - MASSACHUSETTS INSTITUTE OF TECHNOLOGYPSU - PENNSYLVANIA STATE UNIVERSITYUCT - UNIVERSITY OF CONNECTICUTWES - WESTON OBSERVATORY OF BOSTON COLLEGE

'l'ABLE III

EARTHQUAKE DATA LISTNORTHEASTERN UNITED STATES


DEPTHKM

RMSSEC

MAGNITUDESOURCE H-TIME(UTC)HR MN SEC

LATITUDE LONGITUDEDEG DEG

01 OCT*LOO

BLUE MOUNTAIN LAKE, NEW YORK02 59 43.86N 74.48W MBN

03 OCT NEW YORK-CANADA BORDER*LDO 07 05 03.2 44.99N 74.74W

PTN IP D 07 05 11.2 50KMPTN ES 07 05 17.4 50KMWNY EP 07 05 18.2 96KMWNY ES 07 05 29.9 96KMALX EP 07 05 22.0 120KMALX ES 07 05 35.9 120KMCTR EP 07 05 22.6 126KMCTR ES 07 05 37.9 126KM

MBN=2.2 0O.17SEC

03 OCT*LDO


.< 1MBN

04 OCT*LOO


05 OCT*LOO


05 OCT DOVER-FOXCROFT,MAINE*WES 08 23 04.5 4s.19N 69.1sW

MIM EPG 08 23 05.4 10KMMIM ESG 08 23 07.7 10KMTRM EP* 08 23 26.2 136KMTRM EPG 08 23 27.4 136KMTRM EPN 08 23 28.4 136KMTRM ES* 08 23 41.8 136KMEMM ESN 08 23 43.6 140KMBNH ESG 08 23 55.4 180KMCBM ESG 08 24 03.8 209KMWNH EP 08 23 41.7 232KMWNH ES 08 24 08.3 232KM

MBN=1.7 ORO.70SEC

0.8 SEC MBN=1.7413MU

0.7 SEC MBN=1.70lOMU

06 OCT NEAR MILLINOCKET,MAINE*WES 11 08 54.2 45.62N 69.0~

MIM EPG 11 09 01.1 41KMMIM ESG 11 09 05.2 41KMEMM EPG 11 09 20.1 159KM 39MUEMM ESG 11 09 39.7 159KMD3A EPN 11 09 20.2 164KM

O.60SEC MBN=2.1 OR

0.8 SEC MBN=2.28

OF 13CONTINUEDTABLE III

MAGNITUDE DEPTHSOURCE H-TIME(UTC) LATITUDE LONGITUDE RMS

CBMCBMD2AD2ATRMTRMTRMBNHBNHWNH

11 09 20.811 09 42.011 09 21.111 09 41.311 09 21.511 09 22.911 09 45.311 09 27.211 09 53.211 10 12.4

164KM164KM169KM169KM177KM177KM177KM20SKM20SKM267KM

MBN=1.8413MU 0.8 SEC

06 OCT*LDO


07 OCT*LOO


07 OCT*LOO


10 OCT*LOO


12 OCT*LDO


17 OCT*LDO


17 OCT*LDO


17 OCT*LOO

BLUE MOUNTAIN LAKE ,NEW YORK13 31 43.86N 74.48W <1MBN

17 OCT*LDO


17 OCT*LDO


17 OCT*LDO


20 OCT*LOO

WNY IPESJ IPPTN IPMDV EP

LYON MOUNTAIN, NEW YORK23 42 08.4 44.69N 73.89WC 23 42 13.9 33KMC 23 42 19.5 100KMC 23 42 22.0 88KM

23 42 23.1 95KM

O.12SEC MBN=2.8 1

EPNESGEPNESGEPNEPGESGEPGESGE (8)

CONTINUED PAGE 3 OF 13TABLE III

SOURCE H-TIME(UTC) LATITUQE LONGITUDE RMS MAGNITUDE DEPTH

CTR IP D 23 42 24.3CLY IP C 23 42 24.6OCN IP C 23 42 24.7APH EP 23 42 25.0BRV IP C 23 42 26.5ALX IP D 23 42 34.4

lOlKMlO3KMlO3KMlO6KM11OKM167KM

23 OCT ST.SIMEON,QUEBEC(FELT:LA MALBAIE TO MADAWASKA,ME)*EPB 20 58 18.0 47.79N 69.79W 0.9 SEC MBN=4.4*WES 20 58 17.1 47.85N 69.79W 0.66SEC

D2A EpG 20 58 33.1 94KMD3A EPG 20 58 33.6 97KMD3A ESG 20 58 44.4 97KMDlA EPG 20 58 34.4 103KMCBM EPN 20 58 43.1 162KMMIM EPN 20 58 59.2 296KMBNH EPN 20 59 10.4 380KMBNH EPG 20 59 19.7 380KMEMM EPN 20 59 09.5 389KMTRM EPN 20 59 11.8 401KMWNH EPN 20 59 17.2 460KMESJ EPN 20 59 17.8 447KMBRV EPN 20 59 19.7 460KMBRV ESN 21 00 06.7 460KMBRV ESG 21 00 22.7 460KMWNY EPN 20 59 23.6 497KMWNY ESN 21 00 17.0 497KMWNY ESG 21 00 33.5 497KMDNH EPN 20 59 28.2 533KMPTN EPN 20 59 30.0 542KMPTN ESN 21 00 24.2 542KMPTN ESG 21 00 47.4 542KMPNH EPN 20 59 31.4 560KMOCN EPN 20 59 33.5 574KMCLY EPN 20 59 34.2 573KMCLY EPG 20 59 51.3 573KMCLY ESN 21 00 31.9 573KMCLY ESG 21 00 52.1 573KMCTR EPN 20 59 34.3 572KMCTR ESN 21 00 35.2 572KMCTR ESG 21 00 50.5 572KMGLO EPN 20 59 34.4 584KMWFM EPN 20 59 36.7 598KMHRV EPN 20 59 38.0 610KM

OR

SAINT SIMEON,QUEBEC (AFTERSHOCK)21 22 47.79N 69.79W21 22 37.5 47.81N 69.75W 0.14SEC

21 22 52.0 88KM21 23 02.8 88KM21 22 52.5 92KM21 23 03.5 92KM

23 OCT*EPB*WES

D2A EPGD2A ESGD3A EPGD3A ESG

MBN=1.9 OR

TABLE III CONTINUED PAGE 4 OF 13

MAGNITUDE DEPTHSOURCE H-TIME(UTC) LATITUDE LONGITUDE RMS

CIA EPGCIA ESGCBM ESN

97KM97KM

157KM MBN=1.913MU 0.2 SEC


21 23 22.2 88KM21 23 23.1 88KM21 23 22.7 92KM21 23 23.5 97KM21 23 35.4 97KM21 23 32.3 155KM 55MU 0.1 SEC21 23 32.8 155KM21 23 51.2 155KM21 24 19.4 292KM 14MU 0.2 SEC21 24 44.0 400KM21 24 09.8 460KM2] Z418.3 532KM

MBN=3.0 OR

23 OCT*EPB*WES

D2A EPGD2A EP*D3A EPGDIA EPGDIA ESGCBM EPNCBM EP*CBM ESNMIM ESNTRM ESNWNH EPNDNH EPN

MBN=3.32

MBN=2.67


21 53 27.4 88KM21 53 28.3 92KM21 53 39.8 92KM21 53 29.6 97KM21 53 40.5 97KM21 53 56.5 156KM 2MU 0.2 SEC

MBN=1.6 OR

23 OCT*EPB*WES

D2A EPGD3A EPGD3A ESGDlA EPGDlA ESGCBM ESN MBN=1.61

SAINT SIMEON, QUEBEC (AFTERSHOCK)22 07 09.0 47.85N 69.59W 0.08SEC

22 07 23.3 87KM22 07 33.8 87KM22 07 23.9 91KM22 07 34.7 91KM22 07 36.3 96KM22 07 51.2 151KM 2MU 0.2 SEC

MBN=1.8 OR23 OCT*WES

D2A EPGD2A ESGD3A EPGD3A ESGDlA ESGCBM ESN MBN=1.77

SAINT SIMEON,QUEBEC (AFTERSHOCK)01 59 09.4 47.83N 69.70W 0.18SEC

01 59 23.7 88RM01 59 35.7 92RM01 59 25.5 97RM01 59 36.8 97KM01 59 52.6 156KM 2MU 0.2 SEC

MBN=1.6 OR24 OCT*WES

D2A EPGD3A ESGDlA EPGDIA ESGCBM ESN MBN=1.58

21 22 53.521 23 04.921 23 21.0

OF 13.TABLE III CONTINUED

RMS MAGN I TUDE DEPTHSOURCE ij-TIME (UTC) LATITUDE LONGITUDE

24 OCT*EPB*WES

D2AD3ADIADIACBMCBMCBMMIMMIMBNHEMMEMMEMMTRMWNHDNHDNHGLOGLOFLR

MBN=3.6MBN=3.3

SAINT SIMEON,QUEBEC (AFTERSHOCK)10 49 45.0 47.82N 69.84W 0.0 SEC10 49 46.3 47.78N 69.81W 0.65SEC

EPG 10 50 01.1 87KMEPG 10 50 01.6 90KM~G 10 50 02.4 95KMESG 10 50 13.8 95KMEPN 10 50 11.1 158KMEP* 10 50 11.7 158KMESN 10 50 29.8 158KMEPN 10 50 27.3 287KM 3~U 0.2 SECES* 10 51 04.2 287KMEPN 10 50 38.5 371KMEPN 10 50 38.1 382KM 102MU 0.3 SECESN 10 51 17.5 382KMES* 10 51 30.6 382KMESG 10 51 38.9 392KMEPN 10 50 47.8 451KMEPN 10 50 57.0 524KMEP 10 51 00.3 524KMEPN 10 51 02.7 575KMESN 10 51 59.6 575KMESG 10 52 59.0 681KM

OR

MEN=3.l3

MBN=3.46

24 OCT*EPB*WES

D2AD2AD3AD3AD1ADlACBM


EPG 11 22 20.4 86KMESG 11 22 30.6 86KMEPG 11 22 21.3 90KMESG 11 22 31.9 90KMEPG 11 22 21.9 95KMESG 11 22 33.6 95KMESN 11 22 49.7 156KM

MBN=1.8 OR

MBN=1.844MU 0.2 SEC

SAINT SIMEON ,QUEBEC (AFTERSHOCK)18 11 19.1 47.77N 69.89W 0.19SEC

EPG 18 11 34.1 91KMESG 18 11 45.1 91KMEPG 18 11 34.5 94KMESG 18 11 45.7 94KMEPG 18 11 35.6 100KMESG 18 11 47.1 100KMEPN 18 11 44.7 163KM 4MUESN 18 12 04.1 163KM

24 OCT*WES

D2AD2AD3AD3ADIADlACBMCBM

MBN=2.0 OR

0.2 SEC MBN=2.02

OF 13.TABLE III CONTINUED

21 OCT. SAINT SI~mON,QUEBEC (AFTERSHOCK)*EPB 02 23 41.19N 69.19W*WES 02 23 19.4- 41.75N 69.79W 0.19SEC

D2A EPG 02 23 33.1 84KMD3A EPG 02 23 33.8 87KMD3A ESG 02 23 45.3 87KMD1A EPG 02 23 34.8 93KMAGM EPG 02 23 33.9 94KMAGM ESG 02 23 44.9 94KMCBM EPN 02 23 44.3 156KM 3MU 0.2 SECCBM ESN 02 24 03.2 156KM

MBN=1.7 OR

MBN=1.72

21 OCT*LDO


27 OCT*LOO

BLUE MOUNTAIN LAKE, NEW YORK06 49 43.86N 74.48W MEN < 1

27 OCT*LOO


28 OCT*LOO

DENVILLE ,NEW JERSEY0110 40.89N

(FORESHOCK)74.49W MBN < 1

28 OCT OENVILLE,NEW JERSEY*LDO 01 13 31.7 40.89N 74.49W

GPO IPGO 01 13 34.0 14KMGPO ESG 01 13 35.7 14KMTBR EPG 01 13 37.8 36KMTBR ESG 01 13 42.0 36KMSRM EPG 01 13 40.8 55KMSRM ESG 01 13 47.3 55KMBLM ESG 01 13 50.7 66KM

O.O1SEC MBN < 1 0

28 OCT*LOO

(AFTERSHOCK)74.49W

DENVILLE,NEW JERSEY06 47 40.99N MBN < 1

30 OCT*LOO


31 OCT SAINT SIMEON,QUEBEC (AFTERSHOCK)*WES 04 23 13.7 47.80N 69.85W 0.51SEC

D2A EPG 04 23 28.5 91KMD2A ESG 04 23 39.1 91KMD3A EPG 04 23 28.8 95KMD1A EPG 04 23 29.8 100KMD1A ES* 04 23 43.0 100KMAGM EPG 04 23 30.6 102KMCBM EPG 04 23 41.0 163KMTRM EPG 04 24 18.9 395KMMIM 291KM

MBN=2.2 OR

MBN=2.30MBN=2.38MBN=2.07

7KU 0.1 SECSKU 0.2 SEC2KU 0.1 SEC

OF 13TABLE III CONTINUED

01 NOV SAINT SIMEON,QUEBEC (AFTERSHOCK)*WES 17'51 26~1 47.82N 69.58W 0.36SEC

D2A EPG 17 51 39.8 83KMD2A ESG 17 51 50.2 83KMD3A EPG 17 51 40.4 87KMDlA EPG 17 51 40.9 92KMD1A ESG 17 51 52.4 92KMAGM EPG 17 51 41.0 92KMAGM ESG 17 51 51.5 92KMCBM EPN 17 51 50.2 148KM 12MU 0.2 SECCBM ESN 17 52 07.4 148KMMIM 289KM 3MU 0.2 SEC

MBN=2.3 OR

MBN=2.46

MBN=2.13

03 NOV*LOO


05 NOV SAINT SIMEON,QUEBEC (AFTERSHOCK)*WES 11 40 24.8 47.79N 69.72W 0.23SEC

D2A EPG 11 40 38.8 8sKMD2A ESG 11 40 49.4 8sKMD3A EPG 11 40 39.2 89KMD3A ESG 11 40 49.7 89KMD1A EPG 11 40 40.4 94KMD1A ESG 11 40 51.8 94KMAGM EPG 11 40 40.3 9sKMAGM ESG 11 40 51.5 9sKMCBM EPN 11 40 49.7 ls4KM 8MU 0.2 SECCBM ESN 11 41 07.6 154KMMIM 288KM

MBN=2.2 OR

MBN=2.27

3MU 0.2 SEC MBN=2.0S

05 NOV RAQUETTE LAKE,NEW YORK*LDO 18 07 48.7 43.79N 74.59W

OCN IPGD 18 07 50.7 12KMOCN ESG 18 07 52.6 12KMCLY IPGD 18 07 51.2 13KMCLY ESG 18 07 52.8 13KMCTR IPGD 18 07 51.2 14KMCTR ESG 18 07 52.9 14KM

8.7O.10SEC

08 NOV*LDO


10 NOV SAINT SIMEON,QUEBEC (AFTERSHOCK)*WES 04 05 06.1 47.78N 70.22W 0.27SEC

D2A ESG 04 05 37.1 108KMD3A EPG 04 OS" 24.0 111KMD3A ESG 04 05 37.4 111KMD1A EPG 04 05 24.8 117KMD1A ESG 04 05 38.7 117KMAGM EPG 04 05 25.9 119KMAGM ESG 04 05 39.7 119KMCBM ESG 04 05 58.5 18sKM 6MU 0.3 SECMIM 296KM 3MU 0.2 SECTRM 391KM 4MU 0.2 SEC

MBN=2.1 OR

MBN=2.05MBN=2.11MBN=2.23


14 NOV*LOO

BLUE MOUNTAIN.LAKE,NEW YORK06 05 43.86N 74.48W MBN < 1

15 NOV LACONIA,NEW HAMPSHIRE.WES 15 20 31.5 43.56N 11.62W

MBNHEPG 15 20 42.4 31KMMBNHESG 15 20 46.2 31KMWNH EPG 15 20 42.4 39KMCSNHgPG 15 20 42.8 32KMCSNHESG 15 20 46.8 32KMGHNHEPG 15 20 46.2 54KMGHNHESG 15 20 52.6 54KMHNH EPG 15 20 46.5 56KMHNH ESG 15 20 53.0 56KMPNH EPG 15 20 41.5 66KMDNH ESG 15 20 51.5 11KMBNH ESG 15 21 11.1 118KMHRV ESG 15 21 09.2 l11KMWES EPG 15 21 00.0 133KMWES ESG 15 21 14.5 133KMTRM EPN 15 20 58.9. 135KMTRM ESG 15 21 14.8 135KM

O.4SSEC OR


17 NOV*LDO MBN < 1

17 NOV*LOO


19 NOV*LOO


22 NOV NORTH EASTERN YONKERS,NEW YORK (FELT)*LDO 04 43 13.4 41.00N 73.86W 0.13SEC

PAL IPGC 04 43 14.5 4KMPAL ESG 04 43 15.5 4KMSNP IPGC 04 43 18.3 28KMSNP ESG 04 43 21.8 28KMDPL IPGD 04 43 18.3 28KMDPL ESG 04 43 21.8 28KMIPS IPGC 04 43 18.6 31KMIPS ESG 04 43 22.4 31KMSPS IPGC 04 43 19.1 34KMSPS ESG 04 43 23.3 34KMDBM EPG 04 43 19.2 34KMDBM ESG 04 43.23.4 34KMTBR EPGX 04 43 19.3 34KMTBR ESGX 04 43 23.6 34KMGOB IPGC 04 43 19.5 37KMGOB ESG 04 43 24.5 37KMWPR EPG 04 43 19.6 36KMWPR ESG 04 43 23.8 36KMGPD IPGD 04 43 21.7 50KMGPD ESG 04 43 27.8 50KM.BPT EPGX 04 43 22.8 57KMBPT ESG 04 43 29.7 57KM

MBN=1.9 5

OFTABLE III CONTINUED 13

BCT JPGC ,04 43 24.4BCT EgG 04 43 32.7ECT IPGC 04 43 29.7ECT EgG 04 43 41.3

68KM6'8KM

lOOKMlOOKM

22 NOV*LDO


22 NOV LACONIA,NEW HAMPSHIRE*WES 22 49 38.0 43.54N 71.60W*MIT 43.53N 71.58W

ONH EPG 22 49 42.8MBNHEPG 22 49 43.0MBNHESG 22 49 46.8CSNHEPG 22 49 43.4CSNHESG 22 49 47.3WBNHEPG 22 49 44.4WBNHESG 22 49 49.6WNH EPG 22 49 44.6WNH ESG 22 49 49.2GHNHEPG 22 49 46.8GHNHESG 22 49 53.1HNH EPG 22 49 47.6HNH ESG 22 49 54.4PNH EPG 22 49 48.7PNH ESG 22 49 56.6DNH EPG 22 49 50.3DNH ESG 22 49 58.3WFM EP 22 49 56.0WFM EP 22 50 08.0HRV EP 22 49 58.0HRV EP 22 50 11.0BNH ES* 22 50 11.9GLO EP* 22 49 59.4GLO ES* 22 50 12.4WES EP 22 50 00.2WES ES* 22 50 14.6TRM EP* 22 50 00.1TRM ES* 22 SO 15.8MIM

O.18SEC MBN=1.8 OR

30KM30KM30KM32KM32KM41KM41KM40KM40KM53KM53KM58KM58KM66KM66KM74KM74KM

104KM104KM115KM115KM120KM123KM123KM131KM131KM134KM134KM278KM

MBN=1.855MU 0.2 SEC

MBN=1.822MU 0.2 SEC

23 NOV*LDO


24 NOV*LDO


25 NOV*LDO


25 NOV*LDO



25 NOV*LDO


26 NOV*LDO


26 NOV*LDO


28 NOV*LDO

BLUE MOUNTAIN LAKE, NEW YORK21 30 43.86N 74.48W 1MBN <

28 NOV*LDO


01 DEC BETWEEN POTSDAM AND MASSENA,NEW YORK*LDO 18 51 44.0 44.89N 74.82W 0.21SEC

BGR EPGX 18 51 49.7 43KMBGR ESG 18 51 54.3 43KMPTN IPGD 18 51 50.7 38KMPTN ESG 18 ~1 54.6 38KMPNY IPC 18 51 59.5 100KMPNY ES 18 52 11.9 100KMALX IP C 18 52 01.0 108KMALX ES 18 52 13.9 108KMOCN IP C 18 52 01.8 114KMCTR IP C 18 52 02.1 117KMCTR ES 18 52 16.1 117KMUWL IP C 18 52 02.4 119KMEGN ES 18 52 16.5 118KMCLY ES 18 52 17.0 119KM

MBN=2.1 0

03 DEC NEAR OGDENSBURG,NEW YORK*LDO 08 13 18.7 44.77N 75.44W

PTN EPG 08 13 25.1 42KMPTN ESG 08 13 29.8 42KMALX IPGC 08 13 28.5 63KMALX ESG 08 13 35.7 63KMBGR ES 08 13 41.7 85KMADN EP 08 13 36.9 117KMADN ES 08 13 50.4 117KMCTR EP 08 13 38.5 127KMCTR ES 08 13 53.2 127KM

4.4O.28SEC MBN=1.6

(FELT)O.O7SEC

OS DEC SCHOOLEY'S MOUNTAIN,NEW JERSEY*LDO 16 32 06.9 40.77N 74.76W

GPD EPGX 16 32 13.2 37KMGPD ESG 16 32 17.7 37KMpaN EPGD 16 32 13.3 38KMpaN ESG 16 32 18.2 38KMTBR EPG 16 32 17.2 61KMTBR ESG 16 32 24.3 61KM

MBN=1.8 3.4

rAGE 11 OF 13TABLE III CONTINUED

07 DEC SCHOOLEY'S MOUNTAIN,NEW JERSEY*LDO 04 55 07.2 40.77N 74.76W 0.05SEC

GPD IPGD 04 55 13.6 37KMGPD ESG 04 55 18.0 37KMPQN IPGD 04 55 13.7 38KMPQN ESG 04 55 18.6 38KMTBR ESG 04 55 24.5 61KM

MBN=1.7 5.1

07 DEC*LDO


07 DEC SOUTH OF POTSDAM, NEW YORK*LDO 23 59 30.2 44.43N 75.07W

PTN IPGD 23 59 33.0 17KMPTN ESG 23 59 35.1 17KMALX EPG 23 59 41.4 69KMALX ESG 23 59 49.0 69KMCTR EPG 23 59 42.4 79KMCTR ESG 23 59 51.6 79KM

O.llSEC MBN=1.5

09 DEC*LOO


11 DEC*LDO


14 DEC*LDO

BLUE MOUNTAIN LAKE, NEW YORK10 20 4386N 74.48W MBN < 1

14 DEC.WES

D3A EPGD3A ESGD2A EPGDlA EPG

DICKEY MAINE (HEARD)12 23 35.4 47.10N 69.13W

12 23 36.0 3KM12 23 36.2 3KM12 23 36.0 4KM12 23 36.3 SKM

O.OSSEC

15 DEC*LDO

BLUE MOUNTAIN LAKE, NEW YORK23 09 43.86N 74.48W 1MBN <

16 DEC*WES

D2A EPGD3A EPGDlA EPGAGM EPGAGM ESG

DICKEY,MAINE17 26 12.4 47.12N

17 26 12.717 26 12.817 26 13.717 26 14.417 26 15.6

69.17W2KM3KM8KM

12KM12KM

O.O9SEC OR

TABLE I II CONTINUED PAGE 12 OF 13

SOUTHEASTERN CONNECTICUT (HEARD)10 30 57.6 41.47N 72.07W 0.27SEC

10 31 00. 3 17Y,.M10 31 02.4 17KM10 31 03.8 38KM10 31 08.0 38KM10 31 04.7 43KM10 31 09.5 43KM10 31 05.2 48KM10 31 11.2 48KM10 31 09.3 72KM10 31 11.3 84KM10 31 21.5 84KM10 3114.9 102KM10 31 25.9 102KM10 31 15.7 110KM10 31 28.7 110KM10 31 17.2 119KM10 31 18.2 119KM10 31 31.1 119KM

MBN=2.2 OR17 DEC* OCT

APT EPGAPT ESGHDM EPGHDM ESGOCT EPGOCT ESGLAP EPGLAF ESGTMT EPGFLR EPGFLR ESGBPT EP*BPT ES*BCT EP*BCT ES*ECT EP*WES EPGWES ES*

23 DEC*WES

AGM EP*AGM ES*DIA EP*DlA ES*D3A EP*D3A ES*D2A EP*D2A ES*MIM EPGMIM ESGTRM

BRISTOL,NEW BRUNSWICK09 25 06.8 46.58N 67.45W

09 25 28.3 133KM09 25 44.3 133KM09 25 29.2 137KM 14MU09 25 45.1 137KM09 25 30.1 143KM09 25 47.2 143KM09 25 30.2 144KM I1MU09 25 46.8 144KM09 25 38.3 193KM 7MU09 26 01.9 193KM

193KM 7MU

O.21SEC MBN=2.4 OR

0.2 SEC MBN=2.50

0.2 SEC MBN=2.41

0.2 SEC MBN=2.21

0.2 SEC MBN=2.41

25 DEC*LDO


25 DEC*LOO


26 DEC*LDO

BLUE MOUNTAIN LAKE ,NEW YORK02 13 43.86N 74.48W MBN < 1

.PAGE 13 OF 13TABLE III CONTINUED

29 DEC .NEAR BURLINGTON, VERMONT*LDO 00 02 54.7 44.42N 73.14W

COV IPGC 00 02 57.6 18KMCOV ESG 00 03 00.0 18KMMDV IPGD 00 03 02.1 47KMMDV ESG 00 03 07.9 47KMPNY EPG 00 03 03.4 57KMPNY ESG 00 03 10.4 57KM'mY EPG 00 03 03.5 57KMWNY ESG 00 03 10.6 57KMCTR EP 00 03 13.3 122KMCTR ES 00 03 28.1 122KM

1MBN=1.7O.24SEC

30 DEC*LOO


30 DEC*LDO


31 DEC*LDO

BLUE MOUNTAIN LAKE, NEW YORK08 36 43.86N 74.48W MBi~ < 1

31 DEC*LDO


* SOURCEDGS - DELAWARE GEOLOGICAL SURVEYEPB - EARTH PHYSICS BRANCH,DEPT.OF ENERGY,MINES AND RESOURCES,CANADALDO - LAMONT-DOHERTY GEOLOGICAL OBSERVATORY OF COLUMBIA UNIVERSITYMIT - MASSACHUSETTS INSTITUTE OF TECHNOLOGYPSU - PENNSYLVANIA STATE UNIVERSITYUCT - UNIVERSITY OF CONNECTICUTWES - WESTON OBSERVATORY OF BOSTON COLLEGE

TABLE IV

SUSPECTED AND POORLY LOCATED EARTHQUAKESNORTHEASTERN UNITED STATES


DEPTHKM

SOURCE H-TlME(UTCHR MN SEC

LATITUDE LONGITUDEDEG DEG

RMSSEC

MAGNITUDE

L'ORIGINAL,ONTARIO12 22 16.1 45.61N 74.69W

12 22 34.4 118KM12 22 47.7 118KM12 22 35.2 124KM12 22 49.8 124KM12 22 39.4 151KM12 22 56.8 151KM12 22 42.8 173KM12 23 02.8 173KM

28 OCT*LDO

PTN EPPTN ESPNY EPPNY ESWNY EPWNY ESALX EPALX ES

29 OCT NEAR TURNER, MAINE*WES 01 57 44.2 N

TRM EPG 01 57 15.5TRM ESG 01 57 16.3

70.2 W7KM7KM

ALEXANDER BAY, NEW YORK16 57 43.4 44.36N 75.98W

16 57 43.6 6KM16 57 56.3 83KM16 58 06.7 83KM16 58 03.5 13:lKM16 58 19.7 132KM16 58 04.2 133KM16 58 20.0 133KM16 58 04.7 135KM

29 OCT*LDO

ALX EPPTN EPPTN ESAPH EPAPH 1=:SCTR EPCTR ESCLY EP

MBN=2.3 0O.49SEC

03 NOV NEAR SAINT DENIS,QUEBEC*WES 20 52 31 47.5 N 69.9 W

D3A EPG 20 52 44.9 77KMD3A ESG 20 52 53.8 77KMD1A EPG 20 52 44.5 83KMDlA ESG 20 52 55.0 83KMAGM'EPG 20 52 44.7 86KMAGM ESG 20 52 54.8 86KMMI~ ESG 20 53 46.4 265KM

O.69SEC OR

10 NOV*Ll>O

DNY EPDNY ES

ATTICA,NEW YORK19 27 42.8 N

19 27 52.219 27 52.4

78.~ W2KM2KM

OF 2

15 NOV NEAR POTSDAM,NEW YORK*LDO 00 22

PTN IP C 00 22 28.7PTN ES 00 22 30.4

12 DEC*LDO

PAL EPPAL ESTBR EPTBR ESGPD EPGPD ESWPR EPWPR ES

LOWER HUDSON RiVER AREA, NEW YORK12 26 50.7 40.72N 74.01W 0.34SEC

12 26 56.5 33KM12 27 00.0 33KM12 26 58.6 50KM12 27 05.4 50KM12 26 58.9 50KM12 27 06.0 50KM12 27 02.5 69KM12 27 10.7 69KM

MBN=1.8 1

16 DEC NEAR WILMINGTON,NEW YORK*LDO 20 20 04.6 44.39N 73.79W

WNY EP 20 20 05.7 6KMPNY IP C 20 20 12.1 53KMALV EP 20 20 16.9 74KMUWL EP 20 20 17.9 86KMPTN EP 20 20 20.2 97KM

O.53SEC MBN=1.8 3.6

17 DEC NEAR SAINT HONORE,QUEBEC*WES 16 48 03 47.8 N 69.1 W

D2A EPG 16 48 14.3 69KMD2A ESG 16 48 22.4 69KMD3A EPG 16 48 15.0 74KMD3A ESG 16 48 24.4 74KMAGM EPG 16 48 15.4 75KMDIA EPG 16 48 15.6 77KMDIA ESG 16 48 24.8 77KM

O.21SEC OR

* SOURCELDO - LAMONT-DOHERTY GEOLOGICAL OBSERVATORY OF COLUMBIA UNIVERSITYWES - WESTON OBSERVATORY OF BOSTON COLLEGE

6.

INTERNAL DISTRIBUTION- -

.

~. Recipient

15 Dr. E.F. Chiburis

1 Mr. R.O. Ahner

1 File

EXTERNAL DISTRIBUTION

~. Recipient

25 Dr. Jerry Harbour, Dir. of Reactor Safety Research,

Nuclear Regulatory Commission

3 Ms. Mary Jinks, Chief, Central Main and Files,

Nuclear Regulatory Co~~ission

5 Rev. James W. Skehan, S.J., Weston Observatory

5 Dr. M. Nafi Toksoz, Massachusetts Institute of Technology

5 Dr. Yash P. Aggarwal, Lamont-Doherty Geological

Observatory

5 Dr. Shelton S. Alexander, Pennsylvania State University

~ 5 Dr. Ken Woodruff, Delaware Geological Survey

5 Dr. Peter Basham, Earth Physics Branch, Canada

.V"" 1 Consolidated Edison of New York

15 Dr. Paul Pomeroy, New York State Geologist and Coordinator

NEUSSN.

1..1111111...1111111111111111111. '

. ,, ,""c'", ",

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