QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

3km S of New Idria, CA

· 9.7 km deep · released about 74 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N San Benito County 44 kmMonterey County 60 kmKings County 85 kmMerced County 90 kmFresno County 100 kmSan Luis Obispo County 113 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
9.7 km below the surface
Felt
5 reports · strongest reported intensity IV
Nearest
San Benito County, 44 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3165 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 5 people have reported feeling it to USGS.

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 36.3865, -120.6765. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
San Benito County, CA 44 km (28 mi) SE of here earthquakes near San Benito County
Monterey County, CA 60 km (37 mi) ENE of here earthquakes near Monterey County
Kings County, CA 85 km (53 mi) WNW of here earthquakes near Kings County
Merced County, CA 90 km (56 mi) S of here earthquakes near Merced County
Fresno County, CA 100 km (62 mi) WSW of here earthquakes near Fresno County
San Luis Obispo County, CA 113 km (70 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

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

  1. 1.8 4km NNE of Pinnacles, CA
  2. 1.6 4km NNE of Pinnacles, CA
  3. 2.0 17km NW of Parkfield, CA
  4. 1.7 20km SW of New Idria, CA
  5. 1.5 7km E of Coalinga, CA
  6. 2.2 4km ENE of Pinnacles, CA
  7. 2.0 5km ENE of New Idria, CA
  8. 1.6 6km NNE of Pinnacles, CA
  9. 3.1 6km NNE of Pinnacles, CA
  10. 1.8 16km SE of Pinnacles, CA
  11. 3.0 17km NNE of New Idria, CA
  12. 1.7 15km WSW of Cantua Creek, CA
  13. 1.9 24km NW of Parkfield, CA
  14. 2.0 3km N of Pinnacles, CA
  15. 2.0 7km N 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.