QuakeIndex

Earthquake · reviewed by a seismologist

M 3.2ml

20km SW of New Idria, CA

· 11 km deep · released about 1,700 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N San Benito County 42 kmMonterey County 43 kmKings County 95 kmMerced County 101 kmSan Luis Obispo County 107 kmFresno County 118 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 3.2 (ml)
Depth
11 km below the surface
Felt
11 reports · strongest reported intensity III
Nearest
San Benito County, 42 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2706 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 11 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1,700 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.2 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 200,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 9,100× the energy of this one
  3. Magna, Utah 2020 M 5.7 6,500× the energy of this one
  4. This earthquake M 3.2 about 1,700 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.7× more

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 36.2935, -120.8382. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
San Benito County, CA 42 km (26 mi) SSE of here earthquakes near San Benito County
Monterey County, CA 43 km (27 mi) E of here earthquakes near Monterey County
Kings County, CA 95 km (59 mi) WNW of here earthquakes near Kings County
Merced County, CA 101 km (63 mi) S of here earthquakes near Merced County
San Luis Obispo County, CA 107 km (66 mi) NNW of here earthquakes near San Luis Obispo County
Fresno County, CA 118 km (73 mi) WSW of here earthquakes near Fresno County

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

Aftershocks so far

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

  1. 2.2 10km NW of Pinnacles, CA
  2. 1.6 18km NW of Parkfield, CA
  3. 1.9 21km SE of Pinnacles, CA
  4. 2.1 11km NW of Parkfield, CA
  5. 3.0 5km NNE of Pinnacles, CA
  6. 1.9 8km ESE of Pinnacles, CA
  7. 1.8 3km NNE of Pinnacles, CA
  8. 1.6 10km NNE of Pinnacles, CA
  9. 1.7 26km ENE of Pinnacles, CA
  10. 2.2 12km N of Pinnacles, CA
  11. 1.9 5km NNW of Pinnacles, CA
  12. 2.0 8km SE of Pinnacles, CA
  13. 2.1 14km ESE of Pinnacles, CA
  14. 1.8 22km ENE of San Ardo, CA
  15. 2.1 10km 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.