Earthquake · reviewed by a seismologist
M 3.0ml
5km SSW of Gilroy, CA
- When
- Magnitude
- M 3.0 (ml)
- Depth
- 3.1 km below the surface
- Felt
- 250 reports · strongest reported intensity IV
- Nearest
- Santa Clara County, 30 km NNW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2043 days ago
This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 250 people have reported feeling it to USGS.
How big was it?
This earthquake released about 1,000 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.
- Northridge, California 1994 M 6.7 330,000× the energy of this one
- Mineral, Virginia 2011 M 5.8 15,000× the energy of this one
- Magna, Utah 2020 M 5.7 10,000× the energy of this one
- This earthquake M 3.0 about 1,000 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 36.9617, -121.5908. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Santa Clara County, CA | 30 km (19 mi) | SSE of here | earthquakes near Santa Clara County |
| Santa Cruz County, CA | 37 km (23 mi) | E of here | earthquakes near Santa Cruz County |
| San Benito County, CA | 59 km (37 mi) | NW of here | earthquakes near San Benito County |
| Merced County, CA | 81 km (50 mi) | WSW of here | earthquakes near Merced County |
| Alameda County, CA | 81 km (51 mi) | SSE of here | earthquakes near Alameda County |
| Monterey County, CA | 84 km (52 mi) | NNW of here | earthquakes near Monterey 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.
- 2.1 9km SSW of Tres Pinos, CA
- 1.7 3km E of Aromas, CA
- 2.1 13km NNE of Tres Pinos, CA
- 1.7 9km SW of Tres Pinos, CA
- 1.8 12km SSW of Tres Pinos, CA
- 1.5 9km ENE of San Martin, CA
- 1.6 5km NNW of Moss Landing, CA
- 2.8 10km S of Tres Pinos, CA
- 1.8 9km SSW of Tres Pinos, CA
- 2.4 10km S of Tres Pinos, CA
- 1.6 13km S of Tres Pinos, CA
- 1.9 18km W of Los Banos, CA
- 2.3 5km NNW of Aromas, CA
- 1.9 15km SSE of Tres Pinos, CA
- 1.6 16km SSE of Tres Pinos, 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 340 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.