Investigating earthquakes

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Investigating Earthquakes Investigating Earthquakes Anne Wampler Anne Wampler C6 C6

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Transcript of Investigating earthquakes

Page 1: Investigating earthquakes

Investigating EarthquakesInvestigating EarthquakesAnne WamplerAnne Wampler

C6C6

Investigating EarthquakesInvestigating EarthquakesAnne WamplerAnne Wampler

C6C6

Page 2: Investigating earthquakes

CONTENTSCONTENTS

• Our Maps

• What have you learned about earthquakes and earthquake prediction?

• What factors influence earthquake prediction?

• Where on Earth do most of the really big earthquakes strike?

• Our Maps

• What have you learned about earthquakes and earthquake prediction?

• What factors influence earthquake prediction?

• Where on Earth do most of the really big earthquakes strike?

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Our mapsOur mapsOur mapsOur maps

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Significant AND BIG QuakesSignificant AND BIG QuakesSignificant AND BIG QuakesSignificant AND BIG Quakes

These are the quakes ranging in magnitude from 7 to 10 that occurred from 2150 BC to 1994 AD.

Each pink dot represents an earthquake.

These are the quakes ranging in magnitude from 7 to 10 that occurred from 2150 BC to 1994 AD.

Each pink dot represents an earthquake.

These are all of the earthquakes above magnitude

4 which occurred in 2011. Each yellow dot

represents an earthquake

These are all of the earthquakes above magnitude

4 which occurred in 2011. Each yellow dot

represents an earthquake

2011 QUAKES2011 QUAKES2011 QUAKES2011 QUAKES

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EarthquakesEarthquakes andand

Earthquake PredictionEarthquake Prediction

EarthquakesEarthquakes andand

Earthquake PredictionEarthquake Prediction

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THings i learnedTHings i learned

It is possible to predict fairly accurately when an earthquake is due.

the methods which scientists use to predict earthquakes

that some types of plate boundaries are more prone to earthquakes than others

It is possible to predict fairly accurately when an earthquake is due.

the methods which scientists use to predict earthquakes

that some types of plate boundaries are more prone to earthquakes than others

Put picture of both

Sig_Big and 2010-11

Put picture of both

Sig_Big and 2010-11

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Methods of PredictionMethods of Prediction

Mostly, scientists today predict earthquakes by looking at areas where pressure is building up and, judging by the recency of the last quake, guessing at the general date of the next.

Satellite radar can sense any plate movement, even at the slow rate of 1mm per year.

Mostly, scientists today predict earthquakes by looking at areas where pressure is building up and, judging by the recency of the last quake, guessing at the general date of the next.

Satellite radar can sense any plate movement, even at the slow rate of 1mm per year.

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Future methodsFuture methods

Satellites may be able to predict earthquakes by sensing the infra red light that is produced by the pressure build up in the rock.

Scientists may be able to use the miniscule fluxuations in earth’s magnetic field that occur just before major earthquakes.

Satellites may be able to predict earthquakes by sensing the infra red light that is produced by the pressure build up in the rock.

Scientists may be able to use the miniscule fluxuations in earth’s magnetic field that occur just before major earthquakes.

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FactorsFactorsFactorsFactors

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LocationLocation

proximity to plate boundaries

The further a place is from a boundary, the less likely it is to have a major earthquake.

type of plate boundary

Most major earthquakes occur near convergent plate boundaries.

proximity to plate boundaries

The further a place is from a boundary, the less likely it is to have a major earthquake.

type of plate boundary

Most major earthquakes occur near convergent plate boundaries.

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Plate BoundariesPlate Boundaries

The blue lines mark the convergent plate boundaries which I think are most likely to cause earthquakes soon because they havd not had a major quake recently.

The blue lines mark the convergent plate boundaries which I think are most likely to cause earthquakes soon because they havd not had a major quake recently.

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Major earthquake locationsMajor earthquake locationsMajor earthquake locationsMajor earthquake locations

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Top 10 Countries that are due for an earthquakeTop 10 Countries that are due for an earthquake

1. Mainland United States

2. Mexico

3. Russia

4. Venezuela

5. Colombia

6. Algeria

7. Spain

8. Portugal

9. India

10. New Zealand

1. Mainland United States

2. Mexico

3. Russia

4. Venezuela

5. Colombia

6. Algeria

7. Spain

8. Portugal

9. India

10. New Zealand

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ReasonsReasons

I believe that these 10 countries are most likely to have a major earthquake soon because they are:

on convergent boundaries

have had large earthquakes in the past

have not had a significant earthquake in the past year.

I believe that these 10 countries are most likely to have a major earthquake soon because they are:

on convergent boundaries

have had large earthquakes in the past

have not had a significant earthquake in the past year.

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Most likely country to have a major earthquake nextMost likely country to have a major earthquake next

The United States

I believe this because:

the U.S.’s north west coast is on a convergent boundary

they have constant small quakes

that part of the boundary has not had as many major quakes as the rest of the convergent boundaries

The United States

I believe this because:

the U.S.’s north west coast is on a convergent boundary

they have constant small quakes

that part of the boundary has not had as many major quakes as the rest of the convergent boundaries