Earthquake · reviewed by a seismologist
M 2.2md
6 km WSW of Moskowite Corner, California
- When
- Magnitude
- M 2.2 (md)
- Depth
- 7.0 km below the surface
- Felt
- 2 reports · strongest reported intensity III
- Nearest
- Napa County, 12 km NNW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 3503 days ago
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 2 people have reported feeling it to USGS.
How big was it?
This earthquake released about 58 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 260,000× the energy of this one
- Magna, Utah 2020 M 5.7 180,000× the energy of this one
- Around the size people start to feel M 3.0 16× the energy of this one
- This earthquake M 2.2 about 58 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 38.4157, -122.2578. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Napa County, CA | 12 km (7 mi) | SSE of here | earthquakes near Napa County |
| Solano County, CA | 32 km (20 mi) | WNW of here | earthquakes near Solano County |
| Yolo County, CA | 43 km (26 mi) | SW of here | earthquakes near Yolo County |
| Marin County, CA | 59 km (37 mi) | NE of here | earthquakes near Marin County |
| Sonoma County, CA | 59 km (37 mi) | ESE of here | earthquakes near Sonoma County |
| Contra Costa County, CA | 61 km (38 mi) | NNW of here | earthquakes near Contra Costa County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
7 earthquakes have been recorded within 50 km since this one.
- 2.0 5 km WSW of Martinez, California
- 2.5 5 km S of Monument Hills, California
- 1.5 13 km NE of Rutherford, California
- 1.5 5 km SW of Oakville, California
- 1.9 7 km S of Calistoga, California
- 1.5 2 km E of Saint Helena, California
- 2.1 12 km ESE of Elmira, California
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.