Earthquake · reviewed by a seismologist
M 1.7md
1 km SSW of Clyde, California
- When
- Magnitude
- M 1.7 (md)
- Depth
- 17 km below the surface
- Felt
- no reports yet
- Nearest
- Contra Costa County, 13 km SE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 3263 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 9.3 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 1,600,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,100,000× the energy of this one
- Around the size people start to feel M 3.0 100× the energy of this one
- This earthquake M 1.7 about 9.3 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 38.0167, -122.0362. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Contra Costa County, CA | 13 km (8 mi) | NW of here | earthquakes near Contra Costa County |
| Solano County, CA | 29 km (18 mi) | SSW of here | earthquakes near Solano County |
| Alameda County, CA | 43 km (26 mi) | NNW of here | earthquakes near Alameda County |
| Napa County, CA | 60 km (37 mi) | SSE of here | earthquakes near Napa County |
| Marin County, CA | 62 km (39 mi) | E of here | earthquakes near Marin County |
| San Joaquin County, CA | 68 km (42 mi) | W of here | earthquakes near San Joaquin County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
44 earthquakes have been recorded within 50 km since this one.
- 1.5 2km W of Diablo, CA
- 2.1 2km WNW of Diablo, CA
- 1.5 2km W of Diablo, CA
- 2.1 2km WNW of Diablo, CA
- 1.5 2km WNW of Diablo, CA
- 2.4 2km WNW of Diablo, CA
- 1.9 2km WNW of Diablo, CA
- 2.2 2km WNW of Diablo, CA
- 1.9 2km WNW of Diablo, CA
- 2.8 2km W of Diablo, CA
- 2.2 2km WNW of Diablo, CA
- 2.4 2km NNE of El Cerrito, CA
- 2.0 0km WNW of Pacheco, CA
- 1.8 9km E of Livermore, CA
- 1.7 6km NE of Vallejo, 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.