A magnitude 1.9 earthquake was recorded near 12 km WSW of Petrolia, CA on Aug 28, 2026, 5:55:57 AM (2026-08-28T05:55:57.910Z). The earthquake occurred at a depth of 10.2 km with coordinates 40.2847, -124.4170.
Micro — instrument-only, not felt. This was a magnitude 1.9 earthquake — classed as micro. Earthquakes below magnitude 2.5 are almost never felt by people and are only recorded by seismographs.
At 10.2 km this is a shallow earthquake. Shallow quakes release their energy close to the surface, so shaking is usually stronger and more damaging than a deeper quake of the same magnitude — but it is felt over a smaller area.
Nearest major city: 314 km NW of Sacramento, United States.
The epicentre was located at 40.2847 latitude and -124.4170 longitude near 12 km WSW of Petrolia, CA. The earthquake was shallow at 10.2 km depth.
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Data source: USGS Earthquake Hazards Program event page. This page is generated from live USGS GeoJSON feed data.
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