QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

26km NNW of New Idria, CA

· -0.7 km deep · released about 120 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N San Benito County 27 kmMerced County 63 kmMonterey County 64 kmFresno County 102 kmSanta Clara County 104 kmStanislaus County 106 kmKings County 107 kmMadera County 112 kmSanta Cruz County 117 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 2.4 (md)
Depth
-0.7 km below the surface
Felt
2 reports · strongest reported intensity I
Nearest
San Benito County, 27 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2327 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 120 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 120,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 86,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.7× the energy of this one
  4. This earthquake M 2.4 about 120 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 36.6297, -120.7842. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
San Benito County, CA 27 km (17 mi) E of here earthquakes near San Benito County
Merced County, CA 63 km (39 mi) S of here earthquakes near Merced County
Monterey County, CA 64 km (40 mi) NE of here earthquakes near Monterey County
Fresno County, CA 102 km (63 mi) W of here earthquakes near Fresno County
Santa Clara County, CA 104 km (65 mi) SE of here earthquakes near Santa Clara County
Stanislaus County, CA 106 km (66 mi) S of here earthquakes near Stanislaus County

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

Aftershocks so far

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

  1. 1.7 8km NNE of New Idria, CA
  2. 1.9 5km NE of Tres Pinos, CA
  3. 2.4 9km SE of Pinnacles, CA
  4. 1.9 5km ENE of Pinnacles, CA
  5. 1.6 4km ENE of Pinnacles, CA
  6. 2.5 6km NNW of Pinnacles, CA
  7. 2.2 11km NNE of New Idria, CA
  8. 1.9 11km SE of Pinnacles, CA
  9. 2.3 16km SSE of Tres Pinos, CA
  10. 1.6 10km NNW of Pinnacles, CA
  11. 2.1 23km NE of San Ardo, CA
  12. 2.0 8km NW of Pinnacles, CA
  13. 1.6 22km SW of New Idria, CA
  14. 2.1 2km N of Pinnacles, CA
  15. 1.8 4km NNW 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 4.7 on 2019-10-15 — it released about 2,800 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.