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The USGS maintains a variety of fault and volcano monitoring instruments
around the western United States, Alaska, and Hawaii. To learn more
about a particular type of instrument, follow the links below:
Creepmeters
Magnetometers
Strainmeters
Tensor Strainmeters
Tiltmeters
Two Color EDM
Water Level Monitors
The data from all instrumetns are transmitted to the USGS Western
Region Headquarters in Menlo Park using satellite
telemetry.
To view data, access individual sites through the List
of Sites (sorted alphabetically by instrument type).
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