QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

12km N of New Idria, CA

· 7.9 km deep · released about 190 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N San Benito County 36 kmMonterey County 64 kmMerced County 74 kmKings County 94 kmFresno County 96 kmMadera County 113 kmSanta Clara County 117 kmStanislaus 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 2.5 (md)
Depth
7.9 km below the surface
Felt
2 reports · strongest reported intensity II
Nearest
San Benito County, 36 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1597 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 190 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 80,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 57,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.1× the energy of this one
  4. This earthquake M 2.5 about 190 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 36.5270, -120.6948. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
San Benito County, CA 36 km (22 mi) ESE of here earthquakes near San Benito County
Monterey County, CA 64 km (40 mi) ENE of here earthquakes near Monterey County
Merced County, CA 74 km (46 mi) S of here earthquakes near Merced County
Kings County, CA 94 km (58 mi) WNW of here earthquakes near Kings County
Fresno County, CA 96 km (60 mi) WSW of here earthquakes near Fresno County
Madera County, CA 113 km (70 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

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

  1. 2.2 24km NE of King City, CA
  2. 2.3 5km ESE of Pinnacles, CA
  3. 1.8 8km NNW of Pinnacles, CA
  4. 1.8 20km SE of Pinnacles, CA
  5. 2.1 3km NNW of Pinnacles, CA
  6. 2.0 4km NNW of Pinnacles, CA
  7. 1.6 3km NNW of Pinnacles, CA
  8. 2.3 14km WSW of Cantua Creek, CA
  9. 1.7 30km SSW of South Dos Palos, CA
  10. 1.6 8km NNW of Pinnacles, CA
  11. 1.6 2km N of Pinnacles, CA
  12. 1.5 22km WNW of New Idria, CA
  13. 2.1 15km N of Pinnacles, CA
  14. 1.6 12km N of Coalinga, CA
  15. 2.7 20km 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.3 on 2021-01-02 — it released about 480 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.