Columbia Junior High School

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Seismograph Earthquakes!!!!!!

Earthquake Activity

Groups will be assigned a location within the US
Using the above USGS site, draw your location and map the earthquakes that have occurred in the last 24 hours
Using the second website link, draw your location of the volcanoes in the same area

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Having difficulties understanding earthquakes?

Here are a few additional websites to aide in your knowledge about this subject!

"May the force be with you!" in your quest for knowledge :)

This is a must see animation. Includes animation of P & S waves as they travel through the earth and how it

looks on a seismogram.

this animation illustrates how seismic waves move more rapidly with lower amplitude through hard dense

rock as opposed to soft sediment.

Rayleigh Waves are the most damaging waves caused by earthquakes. This animation illustrates the reverse

elliptical dynamics underlying Rayleigh Waves that cause such intense shifting during an earthquake.

Recent Earthquake Map Animations - U.S.

Animations of the total number of earthquakes over a seven day time period.

Animations of the different faults and animations regarding seismic readings

Simulates the motion of P waves and S waves.

Click on the image to view elastic rebound. Elastic rebound occurs over long periods of time.

Displays animations for what causes earthquakes, P & S waves, Mapping earthquakes, depths of Earthquakes,

and earthquake magnitudes.

General information about earthquakes with animations as visuals

This animation is a way to visualize an earthquake as it travels outwards from its starting point through the

earth (viewed from above at left; in cross-section at right). It is based on a real earthquake that took place in

Bolivia in 1994. Seismic waves from the quake were recorded around the world, including at a recording

station in San Juan, Puerto Rico.