Earthquake · reviewed by a seismologist
M 1.6md
3km ESE of Berkeley, CA
- When
- Magnitude
- M 1.6 (md)
- Depth
- 8.9 km below the surface
- Felt
- no reports yet
- Nearest
- Contra Costa County, 27 km ENE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1412 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 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 1,700,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,200,000× the energy of this one
- Around the size people start to feel M 3.0 110× the energy of this one
- This earthquake M 1.6 about 9 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 37.8653, -122.2457. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Contra Costa County, CA | 27 km (16 mi) | WSW of here | earthquakes near Contra Costa County |
| Alameda County, CA | 38 km (24 mi) | NW of here | earthquakes near Alameda County |
| Marin County, CA | 49 km (30 mi) | ESE of here | earthquakes near Marin County |
| San Mateo County, CA | 51 km (32 mi) | NNE of here | earthquakes near San Mateo County |
| Solano County, CA | 52 km (32 mi) | SSW of here | earthquakes near Solano County |
| San Francisco County, CA | 71 km (44 mi) | ENE of here | earthquakes near San Francisco 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.
- 2.0 3km SE of American Canyon, CA
- 1.6 2km SSE of Pacheco, CA
- 1.6 2km S of Oakland, CA
- 1.6 2km S of San Ramon, CA
- 1.9 3km E of Hayward, CA
- 2.0 2km ESE of Berkeley, CA
- 1.7 5km SE of Point Reyes Station, CA
- 1.5 6km WNW of Sunol, CA
- 2.2 4km WSW of Colma, CA
- 1.8 5km WSW of Colma, CA
- 1.8 2km SE of Pacheco, CA
- 1.5 2km SE of Pacheco, CA
- 1.7 2km N of San Leandro, CA
- 1.5 8km SSW of Livermore, CA
- 1.5 8km SSW of Brentwood, 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.
For this area
The largest earthquake within 50 km in our catalogue was M 4.5 on 2019-10-15 — it released about 16,000 times the energy of this one.
From the QuakeIndex catalogue, built from the USGS FDSN event service.
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.