Earthquake News and Highlights
Real-time maps of recent earthquake activity in California,
the nation and the world; real-time seismograms; regional earthquake
activity reports; recent significant earthquakes.
Earthquake basics and educational material; geological and
historical information; links to professional and amateur
organizations; online access to earthquake data.
How to prepare your home, business and family for earthquake
hazards; earthquake probabilities; shaking hazard maps; liquefaction
hazard and earthquake engineering.
Current research activities and results in seismology, crustal
structure and deformation, geology and borehole physics.
Earthquakes in the news, special events and research developments
of particular or topical interest.
Links to other earthquake websites; "Ask-a-Geologist;" publication
lists and bibliographies; ordering USGS products.