Global
Positioning System (GPS) Observations
Velocities, time series, and maps for stations observed with
GPS.
Deformation
and Stress-Change Modeling and Monitoring
Geodetic modeling using GPS and InSAR. Earthquake stress triggering
and stress transfer analyses.
Modeling the Tectonic Deformation of Western North America through Time
Quicktime animations showing the faulting history of the western United States and northwestern Mexico from 30 million years ago to the present.
Real-time Fault Monitoring
Data
The USGS monitors fault activity with strain meters, creep
meters and other geophysical instruments. (Note: This link
takes you to some new pages. The pages that were formerly
linked here, can be found by following this link. 2001-09-20)
San Francisco Bay Area Mini-Plate Boundary Observatory (miniPBO)
The Mini-Plate Boundary Observatory, expands the existing
network of San Francisco Bay Area sites instrumented to measure
deformation within the seismically active zone of the tectonic
plate boundary between the Pacific and North American plates.
Two-color
Electronic Distance Meter (EDM)
Results from measuring changes in distances using a two-color
EDM. Measurements are made in Parkfield, Long Valley, and
Southern California.
Long
Valley
Long Valley, in eastern California, is the center of continuing
volcanic activity and moderate earthquakes. The USGS monitors
geophysical activity in the area. This page contains links
to many of the instruments.
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