M 3.1 Earthquake Recorded 5 km WNW of The Geysers, California
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A minor 3.1 magnitude earthquake occurred 5 km west-northwest of The Geysers, California, at a shallow depth of 3.16 km on March 19, 2026.
What this USGS earthquake report tells you, and what most readers miss
This notice was issued by USGS on April 6, 2026 and geographically references Northern California. Its severity classification of "low" signals how the issuing agency weighs the risk of harm if no action is taken - "critical" and "high" tier alerts typically carry direct consumer actions, while "medium" and "low" tend toward informational guidance or monitoring advisories. The category it belongs to - Earthquakes - determines the monitoring protocol behind it, which shapes what follow-up action (checking for structural damage, watching for aftershocks, reviewing local building codes) is relevant and which agency holds authority over the assessment.
Most readers skim a notice like this, check whether they are personally affected, and move on. The more useful lens is to verify its scope, source, and timestamp, then compare related notices without assuming that one record proves a broader trend.
Areazine pairs this record with the original agency URL so you can check the primary source before acting. Its related labels are earthquake, seismic, usgs, Northern California.
What Happened
A minor earthquake with a magnitude of 3.1 ml occurred on March 20, 2026, at 04:23:01 UTC (March 19, 9:23 PM local time). The event was centered 5 km west-northwest of The Geysers, California.
Location Details
The seismic event was located at coordinates 38.797°N and 122.811°W. The earthquake originated at a depth of 3.16 km. This is classified as a shallow earthquake; shallow events (less than 20 km deep) are typically felt more strongly at the surface than deeper ones of the same magnitude.
Impact Assessment
According to the USGS, there is no tsunami advisory, watch, or warning in effect for this event. No felt reports have been officially recorded at this time, and no alert level color has been assigned for this routine seismic activity.
What You Should Know
Earthquakes of this magnitude (M 2.5-3.9) are categorized as minor. While they are often felt by people near the epicenter, they rarely cause significant damage to structures. Residents in the area should be aware that aftershocks are possible following seismic activity.
Source
Information provided by the USGS Earthquake Hazards Program.
Original source: USGS Official Notice ↗
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