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Earthquakes
Ground shaking caused by the sudden release of accumulated strain by an abrupt shift of rock along a fracture in the earth or by volcanic or magmatic activity, or other sudden stress changes in the earth.
Subtopics:
Earthquake occurrences (42 items)

Earthquake hazards (45 items)
Related topics:
Results 31 - 40 of 88 listed by similarity [list alphabetically]
PDF Earthquakes pose a serious hazard in Afghanistan [More info]
Structural features in eastern Afghanistan accompany seismicity data showing this area is subject to considerable risk of earthquakes.
A Magnitude 7.1 Earthquake in the Tacoma Fault Zone-A Plausible Scenario for the Southern Puget Sound Region, Washington [More info]
Scientific description of the likely effects of a significant earthquake on this densely populated area.
Central California /San Francisco Bay Earthquake Hazards Project [More info]
Information on earthquakes in central California and the San Francisco region with links to four types of field studies, deep seismic investigations, geotechnical investigations, shallow seismic imaging, and airborne geophysical surveys.
PDF Facing the great disaster: How the men and women of the U.S. Geological Survey responded to the 1906 "San Francisco Earthquake" [More info]
After the powerful earthquake of April 18, 1906, staff of the U.S. Geological Survey stationed in Sacramento and Berkeley brought help to the residents of devastated San Francisco, documented the effects of the quake, and investigated its causes.
PDF Field reconnaissance report of landslides triggered by the January 12, 2010, Haiti earthquake [More info]
Preliminary aerial helicopter reconnaissance of areas affected by landslides and ground inspections at some accessible landslide sites.
PDF Forecasting California's earthquakes - What can we expect in the next 30 years? [More info]
Shows how we know severe earthquakes will occur and where.
General Earthquake Observation System (GEOS) [More info]
Earthquake and aftershock data collected by the USGS General Earthquake Observation System project in Menlo Park, California.
Glacier effects of the M7.9 Denali fault earthquake of November 3, 2002 [More info]
Description and photos documenting offsets and 260 km rupture in the Denali glacier in central Alaska after the November 3, 2002 earthquake, the 9th largest earthquake in the United States in the last 200 years.
PDF Ground-shaking hazard from earthquakes [More info]
Postcard available for downloading and printing.
Hawaiian Volcano Observatory (HVO) earthquakes: HVO seismic network [More info]
Description of the seismic monitoring of the active Hawaiian volcanoes with information on the network, instrumentation, and recording stations with links to related information.
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