Earthquake · reviewed by a seismologist
M 1.6md
7km NE of Ridgemark, CA
- When
- Magnitude
- M 1.6 (md)
- Depth
- 8.3 km below the surface
- Felt
- no reports yet
- Nearest
- San Benito County, 35 km SE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1949 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 7.3 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 2,100,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,500,000× the energy of this one
- Around the size people start to feel M 3.0 130× the energy of this one
- This earthquake M 1.6 about 7.3 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 36.8630, -121.3150. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| San Benito County, CA | 35 km (22 mi) | NW of here | earthquakes near San Benito County |
| Santa Clara County, CA | 52 km (32 mi) | SE of here | earthquakes near Santa Clara County |
| Santa Cruz County, CA | 64 km (40 mi) | ESE of here | earthquakes near Santa Cruz County |
| Merced County, CA | 64 km (40 mi) | SW of here | earthquakes near Merced County |
| Monterey County, CA | 69 km (43 mi) | N of here | earthquakes near Monterey County |
| Stanislaus County, CA | 83 km (51 mi) | SSW of here | earthquakes near Stanislaus County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
53 earthquakes have been recorded within 50 km since this one.
- 2.1 10km S of Tres Pinos, CA
- 2.2 5km NNW of Pinnacles, CA
- 1.7 12km NE of Hollister, CA
- 2.6 5km NNW of Pinnacles, CA
- 1.6 5km ENE of Pinnacles, CA
- 1.9 8km ESE of Pinnacles, CA
- 2.1 6km NNW of Pinnacles, CA
- 2.1 4km NE of Pinnacles, CA
- 1.8 14km NW of Pinnacles, CA
- 1.6 5km NNE of Pinnacles, CA
- 1.9 6km NNW of Pinnacles, CA
- 2.1 11km NNW of Hollister, CA
- 1.8 2km NE of Pinnacles, CA
- 1.7 4km NNE of Pinnacles, CA
- 2.9 5km 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 4.7 on 2019-10-15 — it released about 48,000 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.