Earthquake · reviewed by a seismologist
M 2.8md
23km S of South Dos Palos, CA
- When
- Magnitude
- M 2.8 (md)
- Depth
- 4.2 km below the surface
- Felt
- 5 reports · strongest reported intensity III
- Nearest
- San Benito County, 38 km WSW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1510 days ago
This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 5 people have reported feeling it to USGS.
How big was it?
This earthquake released about 450 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 34,000× the energy of this one
- Magna, Utah 2020 M 5.7 24,000× the energy of this one
- Around the size people start to feel M 3.0 2.1× the energy of this one
- This earthquake M 2.8 about 450 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 36.7603, -120.6995. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| San Benito County, CA | 38 km (24 mi) | ENE of here | earthquakes near San Benito County |
| Merced County, CA | 48 km (30 mi) | S of here | earthquakes near Merced County |
| Monterey County, CA | 80 km (50 mi) | NE of here | earthquakes near Monterey County |
| Fresno County, CA | 93 km (58 mi) | W of here | earthquakes near Fresno County |
| Stanislaus County, CA | 93 km (58 mi) | SSE of here | earthquakes near Stanislaus County |
| Madera County, CA | 98 km (61 mi) | WSW of here | earthquakes near Madera County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
58 earthquakes have been recorded within 50 km since this one.
- 1.6 29km NE of Pinnacles, CA
- 3.2 29km NE of Pinnacles, CA
- 1.5 9km SE of Pinnacles, CA
- 2.1 28km NE of Pinnacles, CA
- 2.2 20km SE of Pinnacles, CA
- 2.4 13km NW of Pinnacles, CA
- 1.6 25km SSW of Los Banos, CA
- 2.5 7km NNW of Pinnacles, CA
- 1.5 12km NW of Pinnacles, CA
- 1.9 7km NNW of Pinnacles, CA
- 2.2 11km NE of New Idria, CA
- 1.8 14km ESE of Pinnacles, CA
- 2.1 23km S of South Dos Palos, CA
- 2.2 6km NNW of Pinnacles, CA
- 1.6 17km N of Pinnacles, 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 4.3 on 2021-01-02 — it released about 200 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.