Branch of geology studying the physical characteristics and phenomena of the earth and its atmosphere.
Earthquakes in Hawaii -- an underappreciated but serious hazard [ More info] Shows where earthquakes occur here, the type of damage that has occurred, and the information that USGS provides to help people anticipate and understand this hazard.
Earthquakes in the central United States, 1699-2010 [ More info] Poster includes GIS data for earthquake locations in this seismically active area.
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.
Earthquakes: Frequently Asked Questions [ More info] Answers to a wide variety of questions (FAQs) about earthquakes, such as dictionary of terms, earthquake activity and probabilities, common myths, faults, plate tectonics, and earthquake measurement techniques.
Executive summary, workshop: seismic and tsunami hazard in Puerto Rico and the Virgin Islands [ More info] Summary of workshop with links to reports that are recommendations for future projects.
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.
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.
Geologic hazards team [ More info] An organizational unit within USGS that studies earthquakes, landslides, and geomagnetism. Contact information and descriptions of current research projects.
Geology research and information [ More info] Alternative web access to geological, geochemical, and geophysical research programs that are divided among the new USGS mission areas.
Alphabetical Index of Topics
a b c d e f g h i j k l m n o p q r s t u v w x y z