Earthquake · reviewed by a seismologist
M 1.5md
6km ENE of San Ardo, CA
- When
- Magnitude
- M 1.5 (md)
- Depth
- 6.6 km below the surface
- Felt
- no reports yet
- Nearest
- Monterey County, 48 km WNW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2930 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 6.2 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 2,500,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,700,000× the energy of this one
- Around the size people start to feel M 3.0 150× the energy of this one
- This earthquake M 1.5 about 6.2 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 36.0317, -120.8455. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Monterey County, CA | 48 km (30 mi) | ESE of here | earthquakes near Monterey County |
| San Benito County, CA | 68 km (42 mi) | SSE of here | earthquakes near San Benito County |
| San Luis Obispo County, CA | 80 km (50 mi) | NNW of here | earthquakes near San Luis Obispo County |
| Kings County, CA | 93 km (58 mi) | W of here | earthquakes near Kings County |
| Fresno County, CA | 134 km (83 mi) | SW of here | earthquakes near Fresno County |
| Santa Cruz County, CA | 151 km (94 mi) | SE of here | earthquakes near Santa Cruz County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
49 earthquakes have been recorded within 50 km since this one.
- 1.9 22km NE of San Lucas, CA
- 2.0 13km WSW of Lake Nacimiento, CA
- 2.0 17km SSW of New Idria, CA
- 1.9 11km NNE of San Simeon, CA
- 2.1 23km NE of San Ardo, CA
- 1.8 22km ENE of San Lucas, CA
- 2.2 23km ENE of San Lucas, CA
- 1.8 16km NW of Parkfield, CA
- 2.3 22km ENE of San Ardo, CA
- 1.7 22km NW of Parkfield, CA
- 1.5 15km W of Lake Nacimiento, CA
- 2.6 13km WSW of Lake Nacimiento, CA
- 1.6 6km W of New Idria, CA
- 2.5 6km W of New Idria, CA
- 1.8 7km ENE of San Simeon, 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.