QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

12km W of Cantua Creek, CA

· 17 km deep · released about 40 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N San Benito County 58 kmKings County 74 kmFresno County 77 kmMerced County 82 kmMonterey County 82 kmMadera County 102 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 2.1 (md)
Depth
17 km below the surface
Felt
no reports yet
Nearest
San Benito County, 58 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1860 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 40 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 380,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 270,000× the energy of this one
  3. Around the size people start to feel M 3.0 24× the energy of this one
  4. This earthquake M 2.1 about 40 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 36.4920, -120.4545. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
San Benito County, CA 58 km (36 mi) ESE of here earthquakes near San Benito County
Kings County, CA 74 km (46 mi) NW of here earthquakes near Kings County
Fresno County, CA 77 km (48 mi) WSW of here earthquakes near Fresno County
Merced County, CA 82 km (51 mi) SSE of here earthquakes near Merced County
Monterey County, CA 82 km (51 mi) ENE of here earthquakes near Monterey County
Madera County, CA 102 km (63 mi) SW of here earthquakes near Madera County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

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

  1. 2.0 22km SE of Pinnacles, CA
  2. 1.6 18km WNW of Coalinga, CA
  3. 1.9 3km SW of Huron, CA
  4. 1.8 22km NE of San Lucas, CA
  5. 1.6 16km NW of New Idria, CA
  6. 1.7 30km NE of Pinnacles, CA
  7. 1.5 13km SW of Huron, CA
  8. 1.8 11km ENE of Coalinga, CA
  9. 2.3 10km ENE of Coalinga, CA
  10. 2.2 12km SE of San Joaquin, CA
  11. 2.4 22km NE of San Lucas, CA
  12. 2.5 16km N of Coalinga, CA
  13. 2.1 21km SE of Pinnacles, CA
  14. 2.1 22km ENE of San Lucas, CA
  15. 1.7 28km SSW of South Dos Palos, 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.