QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2md

17km SSW of South Dos Palos, CA

· 11 km deep · released about 67 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N San Benito County 42 kmMerced County 42 kmMonterey County 85 kmStanislaus County 87 kmFresno County 93 kmMadera County 95 kmSanta Clara County 99 kmMariposa County 109 kmKings County 114 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
11 km below the surface
Felt
no reports yet
Nearest
San Benito County, 42 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1438 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 67 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 5.8 230,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 160,000× the energy of this one
  3. Around the size people start to feel M 3.0 14× the energy of this one
  4. This earthquake M 2.2 about 67 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 36.8175, -120.6963. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
San Benito County, CA 42 km (26 mi) ENE of here earthquakes near San Benito County
Merced County, CA 42 km (26 mi) S of here earthquakes near Merced County
Monterey County, CA 85 km (53 mi) NE of here earthquakes near Monterey County
Stanislaus County, CA 87 km (54 mi) SSE of here earthquakes near Stanislaus County
Fresno County, CA 93 km (58 mi) W of here earthquakes near Fresno County
Madera County, CA 95 km (59 mi) WSW of here earthquakes near Madera County

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

Aftershocks so far

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

  1. 2.0 13km E of Tres Pinos, CA
  2. 2.0 3km ENE of Pinnacles, CA
  3. 1.9 6km NNW of Pinnacles, CA
  4. 2.1 12km ENE of Pinnacles, CA
  5. 1.5 6km NE of Pinnacles, CA
  6. 1.8 6km NE of Pinnacles, CA
  7. 2.0 4km NE of Pinnacles, CA
  8. 2.2 3km NNE of Pinnacles, CA
  9. 1.7 32km NE of Pinnacles, CA
  10. 1.5 9km NNW of Pinnacles, CA
  11. 1.8 6km NE of Pinnacles, CA
  12. 1.8 28km NNW of New Idria, CA
  13. 2.1 23km ESE of Tres Pinos, CA
  14. 2.3 3km NNE of Pinnacles, CA
  15. 2.1 3km NE 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.0 on 2022-09-01 — it released about 450 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

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