Earthquake · reviewed by a seismologist
M 2.1md
Earthquake near Greenville, CA
No earthquake was likely felt in Greenville in the 24 hours to 5:02 am PST (13:02 UTC). The last one was M 2.3, 18 km (11 mi) SSE, at 5:11 am PST on 7 November 2026, estimated intensity II (weak) in town. Every earthquake near Greenville
This page: a magnitude 2.1 earthquake was recorded 10 km (6 mi) west-northwest of Greenville, CA, at 3:43 pm PST on 27 January 2025 (23:43 UTC), 3.5 km deep.
USGS: 1 km E of Canyondam, CA
- When
- 3:43 pm PST on 27 January 2025 ()
- Where
- 10 km (6 mi) west-northwest of Greenville, CA · earthquakes near Greenville
- Magnitude
- M 2.1 (md)
- Depth
- 3.5 km below the surface
- Felt
- no reports yet
- Nearest
- Plumas County, 28 km SE
- Nearest mapped fault
- Almanor fault, 2 km from its surface trace — near is not the same as on
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 650 days ago
Earthquake alerts for Greenville, CA
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This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
At this magnitude and depth, people at rest would likely notice it out to about 17 km (11 mi) from the epicentre. In Greenville, 10 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.
Likely felt in: Greenville 10 km, intensity II · Westwood 16 km, intensity II. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 49 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 310,000× the energy of this one
- Magna, Utah 2020 M 5.7 220,000× the energy of this one
- Around the size people start to feel M 3.0 19× the energy of this one
- This earthquake M 2.1 about 49 lb of TNT
Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.
For this area
The largest earthquake within 50 km since 2016 was M 5.5 on 2023-05-11 — about 100,000 times the energy of this one.
Before 2016, the USGS record lists 2 earthquakes of M5 or more within 50 km:
- 5.7 2 km NNE of Canyondam, California · 2 km N of this epicentre
- 5.5 15 km NE of Mineral, California · 46 km NW of this epicentre
Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.
Where
Epicentre 40.1713, -121.0638. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Plumas County, CA | 28 km (18 mi) | SE | earthquakes near Plumas County |
| Lassen County, CA | 71 km (44 mi) | NNE | earthquakes near Lassen County |
| Butte County, CA | 73 km (45 mi) | SW | earthquakes near Butte County |
| Sierra County, CA | 81 km (50 mi) | SE | earthquakes near Sierra County |
| Tehama County, CA | 99 km (62 mi) | W | earthquakes near Tehama County |
| Nevada County, CA | 100 km (62 mi) | SSE | earthquakes near Nevada County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
54 earthquakes have been recorded within 50 km since this one.
- 1.8 16 km ESE of Mineral, CA
- 1.8 15 km NNW of Chester, CA
- 2.1 2 km ESE of Prattville, CA
- 1.6 12 km WSW of Chester, CA
- 1.7 4 km SW of Greenville, California
- 1.6 5 km E of East Quincy, California
- 2.0 7 km S of Canyondam, CA
- 1.9 3 km NNE of Almanor, CA
- 2.1 1 km SSE of Belden, CA
- 2.2 3 km SSE of Canyondam, CA
- 2.1 8 km NE of Cromberg, CA
- 1.8 13 km NNE of Mineral, CA
- 2.3 5 km WNW of Chester, CA
- 2.2 11 km NE of Cromberg, CA
- 1.6 5 km WNW of Chester, CA
Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.
On USGS
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.