Branch of geology studying the physical characteristics and phenomena of the earth and its atmosphere.
ShakeMap [ More info] ShakeMap sites provide near-real-time maps of ground motion and shaking intensity following significant earthquakes.
Southern California Mapping Project (SCAMP) [ More info] Description of the SCAMP project to produce geologic and geophysical maps and reports that describe the geologic setting and geologic history of southern California.
St. Louis Area Earthquake Hazards Mapping Project [ More info] Overview of USGS research focused on earthquake hazards of this specific area.
Studies in Long Island Sound: geology, contaminants, and environmental issues [ More info] Description of Long Island Sound projects and links to research topics, data, publications, photos, and technology on sediment transport, sea floor mapping, contaminant sampling, sediment texture, and environmental issues.
The 1964 Great Alaska Earthquake and tsunamis--a modern perspective and enduring legacies [ More info] Summarizes what we learned about this historic earthquake and how our ability to monitor and respond to events of this type have changed, including our awareness of tsunami effects.
The Earth's crust [ More info] Information on the Earth's crust with a contour map of the thickness plus links to a global crustal database, a global crustal model - CRUST 5.1, and regional crustal models.
The great 1906 earthquake, 100 years later [ More info] Annotated list of resources about the great earthquake of 1906, which caused significant devastation in and around San Francisco, California, compiled for the 100th anniversary of the disaster.
The Hayward fault - Is it due for a repeat of the powerful 1868 earthquake? [ More info] Preparing for earthquakes along this important fault requires studying the history of its movement and its geology, as well as understanding how society has built the area around it.
The Parkfield Experiment - capturing what happens in an earthquake [ More info] Fact sheet describing plans for a San Andreas Fault Observatory at Depth (SAFOD) by drilling into the fault to install instruments for long-term monitoring near the location of the magnitude 6 Parkfield earthquakes.
The San Andreas Fault [ More info] Online booklet on the San Andreas fault system on the California coastal region with discussion of faults, relationship of faults and earthquakes, magnitude of earthquakes, and earthquake probability.
Alphabetical Index of Topics
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