Ashley L., TiAni T., Joe O., Kyle V.
Hayward Fault Zone
California
North American & Pacific Plates
Major cities: Richmond, Berkeley, Oakland, San Leanardo, Hayward and Fremont
Millions of people live on or near the fault
Location
The Hayward Fault merges with the Calaveras Fault east of San Jose
Pacific Plate is moving northwest, N. American Plate is moving southeast
The Hayward Fault is 40 miles long and about 8 miles deep and trends along the east side of San Francisco Bay
The fault is about 200 years old
Transform boundary
Earthquakes
Intense folding of rocks in the locked sections
began forming about 12 million years ago as part of the North American/Pacific plate boundary
The Hayward Fault is in nature, on streets , it cracked many sidewalks and curbs.
Features
-1868-HaywardEarthquake
The Hayward earthquake was the last large earthquake to occur on the Hayward fault zone in the San Francisco bay area. It has been estimated to be around a 6.8-7 on the Richter scale. 30 casualties were reported.
Major Tectonic Events
This is a picture of the Alamada courthouse in San Leandro California after the Hayward earthquake.
-fault creep-
The Hayward fault creeps at about 0.5 cm per year. Fault creeping affects the buildings on the fault, as it damages the foundation and cracks the floors of structures on the fault.
Impact of the Hayward Fault Zone
This is a curb that has been cracked due to fault creeping on the Hayward fault.
http://en.wikipedia.org/wiki/Hayward_Fault_Zone
http://seismo.berkeley.edu/blog/seismoblog.php/2008/10/21/today-in-earthquake-history-hayward-1868
http://earthquake.usgs.gov/regional/nca/haywardfault/
Resources
Top Related