Earthquakes How do we locate them?

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Presentation transcript:

*Earthquakes* How do we locate them? Question of the Day: Where did the largest earthquake ever recorded in the US occur? Thursday, November 4th Locate an Earthquake Key Concept bingo

Prince William Sound, Alaska Magnitude 9.2

Locate an Earthquake… P and S waves 2 minutes apart

Fingerprint of an Earthquake

Locate an Earthquake… P and S waves 3 minutes apart

Calculate how far away the Earthquake was if the time difference was 3 minutes

Then follow down to see how far away the Earth quake was…

Locate an Earthquake… P and S waves 3 minutes apart P and S waves 3 min 40 sec apart

Calculate how far away the Earthquake was if the time difference was 3 minutes 40 seconds away

Locate an Earthquake… P and S waves 3 minutes apart P and S waves 3 min 40 sec apart

Calculate how far away the Earthquake was if the time difference was 4 minutes

Draw circles and find Earthquake Earthquake was HERE!!!