Earthquake · reviewed by a seismologist
M 1.8md
8km ENE of Pinnacles, CA
- When
- Magnitude
- M 1.8 (md)
- Depth
- 9.3 km below the surface
- Felt
- no reports yet
- Nearest
- San Benito County, 5 km NNW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2634 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 16 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 970,000× the energy of this one
- Magna, Utah 2020 M 5.7 680,000× the energy of this one
- Around the size people start to feel M 3.0 61× the energy of this one
- This earthquake M 1.8 about 16 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 36.5705, -121.0683. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| San Benito County, CA | 5 km (3 mi) | SSE of here | earthquakes near San Benito County |
| Monterey County, CA | 43 km (27 mi) | NNE of here | earthquakes near Monterey County |
| Merced County, CA | 76 km (47 mi) | SSW of here | earthquakes near Merced County |
| Santa Clara County, CA | 91 km (57 mi) | SE of here | earthquakes near Santa Clara County |
| Santa Cruz County, CA | 97 km (60 mi) | ESE of here | earthquakes near Santa Cruz County |
| Stanislaus County, CA | 110 km (69 mi) | S of here | earthquakes near Stanislaus County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
52 earthquakes have been recorded within 50 km since this one.
- 1.5 12km SE of Pinnacles, CA
- 1.6 16km NW of Pinnacles, CA
- 1.8 7km ENE of Pinnacles, CA
- 2.0 10km SSW of Ridgemark, CA
- 1.9 5km NNW of Pinnacles, CA
- 1.6 16km SSE of Tres Pinos, CA
- 1.6 9km NNE of Pinnacles, CA
- 1.5 8km NE of Pinnacles, CA
- 2.0 29km SW of South Dos Palos, CA
- 1.8 12km S of Tres Pinos, CA
- 1.6 11km S of Tres Pinos, CA
- 1.6 8km ESE of Pinnacles, CA
- 1.6 16km NW of Pinnacles, CA
- 1.5 22km NNE of San Ardo, CA
- 1.8 3km NNW 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 4.6 on 2017-11-13 — it released about 14,000 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.