QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2md

12km SE of San Joaquin, CA

· 18 km deep · released about 52 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Fresno County 46 kmKings County 58 kmMadera County 80 kmSan Benito County 89 kmMerced County 92 kmMonterey County 115 kmMariposa County 116 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 2.2 (md)
Depth
18 km below the surface
Felt
no reports yet
Nearest
Fresno County, 46 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1714 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 52 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 290,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 200,000× the energy of this one
  3. Around the size people start to feel M 3.0 18× the energy of this one
  4. This earthquake M 2.2 about 52 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 36.5415, -120.0877. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Fresno County, CA 46 km (28 mi) WSW of here earthquakes near Fresno County
Kings County, CA 58 km (36 mi) NNW of here earthquakes near Kings County
Madera County, CA 80 km (50 mi) SSW of here earthquakes near Madera County
San Benito County, CA 89 km (56 mi) E of here earthquakes near San Benito County
Merced County, CA 92 km (57 mi) SE of here earthquakes near Merced County
Monterey County, CA 115 km (71 mi) ENE of here earthquakes near Monterey 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. 2.6 19km NNW of Coalinga, CA
  2. 1.6 9km W of Huron, CA
  3. 2.2 20km NNW of Coalinga, CA
  4. 2.5 6km S of Armona, CA
  5. 1.6 16km N of Coalinga, CA
  6. 1.9 18km SE of New Idria, CA
  7. 2.2 15km NW of Coalinga, CA
  8. 2.1 6km NNE of Lemoore, CA
  9. 1.9 15km NW of Coalinga, CA
  10. 1.7 11km N of Avenal, CA
  11. 1.9 9km NW of Lemoore Station, CA
  12. 1.7 8km NE of Coalinga, CA
  13. 1.5 9km NE of Coalinga, CA
  14. 1.7 6km SSW of Huron, CA
  15. 2.0 7km NNE 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.