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Branch of geology studying the physical characteristics and phenomena of the earth and its atmosphere.
Marine geophysics (11 items)
Seismology (61 items)
Tectonophysics (3 items)

Geophysical maps (27 items)
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Results 51 - 60 of 117 listed by similarity [list alphabetically]
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.
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.
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.
Geomagnetic charts [More info]
Links to charts of the Earth's magnetic field in different projections showing declination, inclination, and total, horizontal and vertical intensities plus references and note on limitations.
Geomagnetic FAQs [More info]
Frequently-asked questions, with answers, about the Earth's magnetic field.
Geomagnetic models [More info]
Description of magnetic models with link to on-line calculation, freeware calculator (DOS and Windows), descriptions of model types, and references.
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