Preliminary 5.0 magnitude earthquake shakes Northern California

In one of the most seismically active areas of the United States, Cal Poly Humboldt students are helping to usher in a new era of earthquake detection and monitoring. The students are running what’s known as a tap test—part of an experiment to explore using fiber optic lines to detect earthquakes, which could one day help communities more quickly receive warnings of seismic events. This project is part of a multi-year, multi-agency effort led by the U.S. Geological Survey (USGS), Cal Poly Humbol

USGS’ new interactive map

A USGS guide for finding and interpreting high-water marks

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