The U.S. Geological Survey reported a preliminary 2.1 magnitude california earthquakes event near The Geysers at 7:52 a.m. Wednesday, June 17. The quake struck at a depth of 1 mile, with its epicenter about 2 miles north-northwest of The Geysers.
Two tremors greater than magnitude 2.5 were recorded nearby in the past week. A 3.4 magnitude quake was detected in the same region on June 14, and a 3.3 magnitude earthquake occurred close to Cloverdale on June 16.
The Geysers June 17 quake
The size of the tremor was small enough that earthquakes below 2.5 magnitude are seldom felt by most people. For readers near The Geysers, the immediate fact is the location and timing: a shallow quake before 8 a.m., close to a part of Sonoma County that has already seen recent activity.
The depth of 1 mile puts the event close to the surface. That does not make it large, but it does place it in the same stretch of northern California that produced the June 14 and June 16 quakes.
Recent Sonoma County activity
The nearby June 14 and June 16 tremors give the latest quake its context. One was a 3.4 magnitude event in the same region, and the other was a 3.3 magnitude earthquake close to Cloverdale.
For people tracking california earthquakes in Sonoma County, the practical takeaway is simple: the latest shake was minor, but it arrived after a short run of nearby quakes. This report was originally published June 17, 2026 at 7:56 AM.
