M2.9 earthquake — 77 km W of Petrolia, CA
An magnitude 2.9 earthquake occurred 77 km W of Petrolia, CA on Aug 29, 2026 at 17:12 UTC. The epicenter was at a depth of 23 km — a shallow earthquake. Shallow quakes concentrate their energy near the surface, so they tend to produce stronger shaking close to the epicenter.
Event data
| Magnitude | M2.9 |
|---|---|
| Depth | 22.9 km |
| Coordinates | 40.454, -125.173 |
| Time | Aug 29, 17:12 UTC |
| Location | 77 km W of Petrolia, CA |
| USGS event ID | nc75426827 |
What this magnitude typically means
Very small earthquakes are usually only detected by instruments and are rarely felt. They are a normal part of background seismic activity. Tremor does not compute a single local shaking figure here, because how strong a quake feels at any address depends on distance, depth and local geology — open the interactive globe to explore the ShakeMap and estimated intensity.
Nearby recent earthquakes
| Magnitude | Distance | Time (UTC) | Location |
|---|---|---|---|
| M4.8 | 8 km | Aug 29, 02:41 UTC | 85 km W of Petrolia, CA |
| M2.6 | 16 km | Aug 28, 21:24 UTC | 66 km W of Petrolia, CA |
| M2.6 | 67 km | Aug 25, 23:02 UTC | 143 km W of Ferndale, California |
| M2.8 | 136 km | Aug 29, 07:48 UTC | 209 km W of Ferndale, California |
| M2.9 | 174 km | Aug 29, 07:49 UTC | 250 km W of Ferndale, California |
| M2.6 | 188 km | Aug 29, 09:18 UTC | 264 km W of Ferndale, California |
Earthquake activity in this area
See this quake on the live 3D globeShakeMap, seismogram and aftershock forecastGet earthquake alertsWatchlists with email, push and Slack
Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.