Earthquake · reviewed by a seismologist
M 1.8md
17km S of New Idria, CA
- When
- Magnitude
- M 1.8 (md)
- Depth
- 9.6 km below the surface
- Felt
- no reports yet
- Nearest
- San Benito County, 52 km NW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 3179 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 14 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 1,100,000× the energy of this one
- Magna, Utah 2020 M 5.7 790,000× the energy of this one
- Around the size people start to feel M 3.0 70× the energy of this one
- This earthquake M 1.8 about 14 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 36.2623, -120.7058. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| San Benito County, CA | 52 km (32 mi) | SE of here | earthquakes near San Benito County |
| Monterey County, CA | 55 km (34 mi) | E of here | earthquakes near Monterey County |
| Kings County, CA | 83 km (51 mi) | WNW of here | earthquakes near Kings County |
| San Luis Obispo County, CA | 100 km (62 mi) | NNW of here | earthquakes near San Luis Obispo County |
| Merced County, CA | 104 km (64 mi) | S of here | earthquakes near Merced County |
| Fresno County, CA | 109 km (68 mi) | WSW of here | earthquakes near Fresno County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
51 earthquakes have been recorded within 50 km since this one.
- 2.0 7km SE of Pinnacles, CA
- 2.6 17km NW of Parkfield, CA
- 2.6 12km SE of Pinnacles, CA
- 1.6 24km NNE of San Ardo, CA
- 1.6 21km SE of Pinnacles, CA
- 2.1 24km NE of King City, CA
- 2.0 4km E of Pinnacles, CA
- 1.5 12km SE of Pinnacles, CA
- 1.6 12km WSW of Huron, CA
- 1.7 12km WSW of Huron, CA
- 1.9 5km ENE of Pinnacles, CA
- 1.8 8km ESE of Pinnacles, CA
- 2.5 11km SE of Pinnacles, CA
- 1.5 11km NNW of Coalinga, CA
- 1.6 9km WSW of San Ardo, 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.
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.