Earthquakes

Earth's Continental Plates - Notes for crustal plates and plate tectonics

Types of Earthquake Waves - How does the earth move?

Earthquake Scales - How is the strength of an earthquake measured?

Seismograph - How do I read a seismogram?

Earthquake Info - More useful information.

USGS - Earthquake Website

Seismic Monitor - See where earthquakes are happening today

Seismic Wave Simulator - see how P-Waves, S-Waves, and Surface waves travel through the earth and on the earth's surface