QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0ml

19 km WNW of New Idria, CA

· 17 km deep · released about 950 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N San Benito County 24 kmMonterey County 46 kmMerced County 82 kmKings County 105 kmSanta Clara County 111 kmFresno County 114 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 3.0 (ml)
Depth
17 km below the surface
Felt
3 reports · strongest reported intensity II
Nearest
San Benito County, 24 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1016 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 3 people have reported feeling it to USGS.

How big was it?

This earthquake released about 950 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 350,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 16,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 11,000× the energy of this one
  4. This earthquake M 3.0 about 950 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 36.4658, -120.8808. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
San Benito County, CA 24 km (15 mi) SE of here earthquakes near San Benito County
Monterey County, CA 46 km (29 mi) ENE of here earthquakes near Monterey County
Merced County, CA 82 km (51 mi) S of here earthquakes near Merced County
Kings County, CA 105 km (65 mi) WNW of here earthquakes near Kings County
Santa Clara County, CA 111 km (69 mi) SE of here earthquakes near Santa Clara County
Fresno County, CA 114 km (71 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

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

  1. 1.5 4 km NNW of Pinnacles, CA
  2. 3.7 25 km SSW of Los Banos, CA
  3. 1.8 8 km SSE of San Lucas, CA
  4. 1.5 4 km SE of Tres Pinos, CA
  5. 1.6 10 km E of Pinnacles, CA
  6. 2.0 6 km E of Pinnacles, CA
  7. 1.7 13 km S of Tres Pinos, CA
  8. 2.5 24 km N of New Idria, CA
  9. 1.9 12 km SE of Pinnacles, CA
  10. 2.1 10 km SE of Pinnacles, CA
  11. 2.2 2 km NNE of Pinnacles, CA
  12. 2.2 2 km N of Pinnacles, CA
  13. 1.6 16 km SSE of Tres Pinos, CA
  14. 1.5 22 km NE of King City, CA
  15. 2.1 15 km N of New Idria, 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 370 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.