Earthquake · reviewed by a seismologist
M 2.0md
8km NNW of Chester, CA
- When
- Magnitude
- M 2.0 (md)
- Depth
- 4.5 km below the surface
- Felt
- no reports yet
- Nearest
- Plumas County, 57 km SE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2039 days ago
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
How big was it?
This earthquake released about 36 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 420,000× the energy of this one
- Magna, Utah 2020 M 5.7 300,000× the energy of this one
- Around the size people start to feel M 3.0 27× the energy of this one
- This earthquake M 2.0 about 36 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.
Where
Epicentre 40.3790, -121.2638. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Plumas County, CA | 57 km (35 mi) | NW of here | earthquakes near Plumas County |
| Lassen County, CA | 66 km (41 mi) | SW of here | earthquakes near Lassen County |
| Shasta County, CA | 78 km (49 mi) | ESE of here | earthquakes near Shasta County |
| Butte County, CA | 84 km (52 mi) | NNE of here | earthquakes near Butte County |
| Tehama County, CA | 87 km (54 mi) | ENE of here | earthquakes near Tehama County |
| Sierra County, CA | 109 km (68 mi) | NW of here | earthquakes near Sierra County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
53 earthquakes have been recorded within 50 km since this one.
- 2.1 3km NNE of Chester, CA
- 2.1 14km ESE of Viola, CA
- 1.9 13km WSW of Almanor, CA
- 1.9 9km WSW of Chester, CA
- 1.5 12km ESE of Viola, CA
- 2.0 9km WSW of Chester, CA
- 1.5 12km ESE of Viola, CA
- 2.2 4km ENE of Prattville, CA
- 1.9 10km WSW of Chester, CA
- 1.6 15km NNE of Mineral, CA
- 1.9 12km ESE of Viola, CA
- 1.6 3km S of East Shore, CA
- 1.9 9km W of Caribou, CA
- 1.6 15km SSW of Mineral, CA
- 1.6 15km SSW of Mineral, 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.