QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

14km SW of New Idria, CA

· 16 km deep · released about 140 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N San Benito County 41 kmMonterey County 49 kmKings County 91 kmMerced County 96 kmSan Luis Obispo County 109 kmFresno County 111 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
Magnitude
M 2.4 (md)
Depth
16 km below the surface
Felt
no reports yet
Nearest
San Benito County, 41 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2332 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 140 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 110,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 78,000× the energy of this one
  3. Around the size people start to feel M 3.0 6.9× the energy of this one
  4. This earthquake M 2.4 about 140 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 36.3313, -120.7807. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
San Benito County, CA 41 km (26 mi) SE of here earthquakes near San Benito County
Monterey County, CA 49 km (30 mi) ENE of here earthquakes near Monterey County
Kings County, CA 91 km (57 mi) WNW of here earthquakes near Kings County
Merced County, CA 96 km (60 mi) S of here earthquakes near Merced County
San Luis Obispo County, CA 109 km (68 mi) NNW of here earthquakes near San Luis Obispo County
Fresno County, CA 111 km (69 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

47 earthquakes have been recorded within 50 km since this one.

  1. 2.3 17km NW of Parkfield, CA
  2. 1.8 4km NNW of Pinnacles, CA
  3. 2.0 4km NNW of Pinnacles, CA
  4. 2.1 22km ENE of San Ardo, CA
  5. 1.6 27km NE of San Ardo, CA
  6. 2.1 17km NW of Parkfield, CA
  7. 2.2 17km N of Coalinga, CA
  8. 1.5 3km ENE of Pinnacles, CA
  9. 2.1 6km ESE of San Lucas, CA
  10. 1.6 7km WNW of San Ardo, CA
  11. 2.3 12km SE of Pinnacles, CA
  12. 2.2 3km NNW of Pinnacles, CA
  13. 1.9 22km NNE of San Ardo, CA
  14. 1.8 19km NW of Parkfield, CA
  15. 1.7 5km NNE 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.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.