QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

6km E of New Idria, CA

· 4.6 km deep · released about 74 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N San Benito County 48 kmMonterey County 66 kmKings County 81 kmMerced County 88 kmFresno County 94 kmSan Luis Obispo County 115 kmMadera County 117 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 2.3 (md)
Depth
4.6 km below the surface
Felt
no reports yet
Nearest
San Benito County, 48 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1920 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 74 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 140,000× the energy of this one
  3. Around the size people start to feel M 3.0 13× the energy of this one
  4. This earthquake M 2.3 about 74 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 36.4128, -120.6118. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
San Benito County, CA 48 km (30 mi) ESE of here earthquakes near San Benito County
Monterey County, CA 66 km (41 mi) ENE of here earthquakes near Monterey County
Kings County, CA 81 km (50 mi) WNW of here earthquakes near Kings County
Merced County, CA 88 km (54 mi) S of here earthquakes near Merced County
Fresno County, CA 94 km (58 mi) WSW of here earthquakes near Fresno County
San Luis Obispo County, CA 115 km (71 mi) N of here earthquakes near San Luis Obispo 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.

  1. 2.1 22km NE of San Lucas, CA
  2. 1.8 13km SE of Pinnacles, CA
  3. 2.8 23km NW of Parkfield, CA
  4. 1.6 13km NW of Avenal, CA
  5. 1.8 8km ESE of Pinnacles, CA
  6. 3.8 15km SSE of New Idria, CA
  7. 1.7 23km WSW of New Idria, CA
  8. 2.1 9km SE of Pinnacles, CA
  9. 1.7 7km ENE of Pinnacles, CA
  10. 1.7 20km SW of New Idria, CA
  11. 2.1 1km NE of Pinnacles, CA
  12. 1.8 25km NW of Parkfield, CA
  13. 1.9 23km NW of Parkfield, CA
  14. 1.9 25km SSW of South Dos Palos, CA
  15. 1.6 19km NNW of Coalinga, 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.