Earthquakes

USGS.gov - Listing of current earthquakes

USGS.gov - Map of earthquakes that have occured in the last thirty days.

UCSB.edu - Animation of elastic rebound

UNR.edu - Plate techtonics and earthquakes

hsv.com - Map of earthquakes in the United States

germantown - S and P waves

USGS.gov - National Earthquake Information Center

Iris.edu - Seismic monitor