QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

21km ESE of Kettleman City, CA

· 20 km deep · released about 1,000 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kings County 15 kmSan Luis Obispo County 89 kmFresno County 91 kmTulare County 92 kmKern 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 3.0 (md)
Depth
20 km below the surface
Felt
no reports yet
Nearest
Kings County, 15 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2466 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 1,000 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 6.7 330,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 15,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 10,000× the energy of this one
  4. This earthquake M 3.0 about 1,000 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 35.9490, -119.7438. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kings County, CA 15 km (9 mi) SSE of here earthquakes near Kings County
San Luis Obispo County, CA 89 km (55 mi) NE of here earthquakes near San Luis Obispo County
Fresno County, CA 91 km (56 mi) S of here earthquakes near Fresno County
Tulare County, CA 92 km (57 mi) WSW of here earthquakes near Tulare County
Kern County, CA 114 km (71 mi) NW of here earthquakes near Kern County

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

Aftershocks so far

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

  1. 1.5 11km SW of Huron, CA
  2. 1.9 13km ESE of Kettleman City, CA
  3. 2.1 7km ESE of Huron, CA
  4. 1.7 11km WSW of Huron, CA
  5. 1.8 12km SW of Huron, CA
  6. 1.9 10km S of Stratford, CA
  7. 1.5 4km SSE of Avenal, CA
  8. 1.9 8km WNW of Lemoore Station, CA
  9. 2.4 4km NW of Armona, CA
  10. 2.0 15km E of Kettleman City, CA
  11. 1.8 9km W of Delano, CA
  12. 1.8 8km ESE of Kettleman City, CA
  13. 2.1 8km WSW of Huron, CA
  14. 2.1 8km SW of Huron, CA
  15. 1.8 7km SSE of Huron, 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 2018-11-27 — it released about 30 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.