Gauge data for the DTM instruments are not scaled to physical units. For the DTM instruments, the data are complete through May 2025. More data exist but have not been archived. In this archive, the …

The USGS maintains a variety of fault and volcano monitoring instruments around the western United States, including Hawaii. The data from all instruments are transmitted in real time to the USGS in …

The USGS maintains a variety of fault and volcano monitoring sites around the western United States. Instruments at these sites include strainmeters, tiltmeters and creepmeters, as well as other …

layers of clay-rich fault gouges from locations along the San Andreas and Hayward faults in California

The integrated network consists 17 broadband (20 to 360 seconds) and 7 short period (1 - 2 Hz) seismic stations, 9 permanent GPS stations, and 17 tide gauge stations (Figures 1 and 2) located in Puerto …

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The seismic data were gathered using a shoot-through acquisition method with a BETSY-Seisgun shooting source consisting of 8-gauge, 400 grain shotgun blanks set in holes drilled about 30 cm …

Seismic hazard and site amplification studies usually focus on ground motions (i.e., displacement, velocity, and acceleration), while DAS measures the along-fiber strain field averaged over a finite …

Mar 28, 2025 · M 7.7 - 2025 Mandalay, Burma (Myanmar) Earthquake 2025-03-28 06:20:52 (UTC) 22.011°N 95.936°E 10.0 km depth

A small, but geophysically significant, tsunami was recorded on the Presidio tide gauge in San Francisco. There was a 10-cm lowering of sea level with a period of about 16 minutes beginning …