USGS - M1+ Real-Time Earthquakes, Past 7 Days

USGS KML File - Display real-time earthquakes and plate boundaries in Google Earth. Earthquakes will be broadcast within a few minutes for California events, and within 30-minutes for world-wide events. Earthquakes refresh every 5-minutes in Google Earth.

USGS - Quaternary Faults

USGS KML File - Faults and associated folds in the United States that are believed to be sources of M>6 earthquakes during the Quaternary (the past 1,600,000 years).

Historic - Most recent, known movement less than about 150 years Holocene to Latest Pleistocene - Younger than 15,000 years Late Quaternary - Younger than 130,000 years Mid to Late Quaternary - Younger than 750,000 years Quaternary Younger than 1,600,000 years All Quaternary Faults - Recent to 1,600,000 years

USGS - Tectonic Plates Boundaries

USGS KML File - KML file showing the outermost shell of the Earth which is broken into several rigid “plates” that have been moving relative to one another for hundreds of millions of years.