Earthquake · reviewed by a seismologist
M 3.2ml
12km S of Tres Pinos, CA
- When
- Magnitude
- M 3.2 (ml)
- Depth
- 4.4 km below the surface
- Felt
- 20 reports · strongest reported intensity IV
- Measured shaking
- intensity IV (ShakeMap)
- Nearest
- San Benito County, 21 km ESE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1555 days ago
This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 20 people have reported feeling it to USGS.
How big was it?
This earthquake released about 1 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.2 would have released about 32 times as much.
- Northridge, California 1994 M 6.7 170,000× the energy of this one
- Mineral, Virginia 2011 M 5.8 7,400× the energy of this one
- Magna, Utah 2020 M 5.7 5,200× the energy of this one
- This earthquake M 3.2 about 1 tons of TNT
- Around the size people start to feel M 3.0 this one released 2.1× more
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 36.6782, -121.3042. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| San Benito County, CA | 21 km (13 mi) | WNW of here | earthquakes near San Benito County |
| Monterey County, CA | 49 km (30 mi) | N of here | earthquakes near Monterey County |
| Santa Clara County, CA | 69 km (43 mi) | SSE of here | earthquakes near Santa Clara County |
| Santa Cruz County, CA | 73 km (45 mi) | ESE of here | earthquakes near Santa Cruz County |
| Merced County, CA | 77 km (48 mi) | SW of here | earthquakes near Merced County |
| Stanislaus County, CA | 102 km (63 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 8km NE of Pinnacles, CA
- 1.9 20km ESE of Pinnacles, CA
- 1.7 10km NW of Pinnacles, CA
- 2.5 10km SSW of Ridgemark, CA
- 1.5 19km SE of Pinnacles, CA
- 1.6 6km N of Tres Pinos, CA
- 1.8 15km E of Pinnacles, CA
- 1.9 11km NW of Pinnacles, CA
- 2.2 19km SE of Pinnacles, CA
- 1.8 19km SE of Pinnacles, CA
- 1.9 9km ESE of Pinnacles, CA
- 2.0 12km SE of Pinnacles, CA
- 2.0 9km SW of Tres Pinos, CA
- 1.8 9km SW of Tres Pinos, CA
- 1.7 4km 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 170 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.