QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

Earthquake near Corcoran, CA

No earthquake was likely felt in Corcoran in the 24 hours to 5:07 am PST (13:07 UTC). The last one was M 2.9, 8 km (5 mi) WNW, at 11:37 am PDT on 21 August 2026, estimated intensity II (weak) in town. Every earthquake near Corcoran

This page: a magnitude 2.3 earthquake was recorded 17 km (10 mi) southwest of Corcoran, CA, at 5:36 am PST on 17 February 2022 (13:36 UTC), 26 km deep.

USGS: 17km SW of Corcoran, CA

90 km (56 mi) S of Fresno, CA · 39 km (24 mi) SW of Tulare, CA

5:36 am PST, Feb 17, 2022 · · 26 km deep · released about 77 lb of TNT

10 km30 km60 km120 km N Kings County 17 kmTulare County 85 kmFresno County 87 kmSan Luis Obispo County 96 kmKern County 110 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
5:36 am PST on 17 February 2022 ()
Where
17 km (10 mi) southwest of Corcoran, CA · earthquakes near Corcoran
Magnitude
M 2.3 (md)
Depth
26 km below the surface
Felt
no reports yet
Nearest
Kings County, 17 km NW
Nearest mapped fault
Great Valley thrust fault system, 23 km from its surface trace — near is not the same as on
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1727 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth it was probably too small to be felt, even directly above it. In Corcoran, 17 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Earthquakes near other towns within 30 km: Alpaugh, Kettleman City, Stratford.

How big was it?

This earthquake released about 77 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 140,000× the energy of this one
  3. Around the size people start to feel M 3.0 12× the energy of this one
  4. This earthquake M 2.3 about 77 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.

For this area

The largest earthquake within 50 km since 2016 was M 4.0 on 2018-11-27 — about 390 times the energy of this one.

Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:

  1. 5.6 8 km SW of Huron, California · 47 km WNW of this epicentre

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 35.9758, -119.6698. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Kings County, CA 17 km (11 mi) NW earthquakes near Kings County
Tulare County, CA 85 km (53 mi) ENE earthquakes near Tulare County
Fresno County, CA 87 km (54 mi) N earthquakes near Fresno County
San Luis Obispo County, CA 96 km (60 mi) SW earthquakes near San Luis Obispo County
Kern County, CA 110 km (68 mi) SE earthquakes near Kern 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 6km SSW of Huron, CA
  2. 1.7 10km NNW of Avenal, CA
  3. 1.5 9km NNW of Avenal, CA
  4. 2.8 9km ESE of Kettleman City, CA
  5. 1.7 5km E of Avenal, CA
  6. 1.8 20km SSE of Kettleman City, CA
  7. 1.6 3km WSW of Avenal, CA
  8. 2.0 8km E of Huron, CA
  9. 1.7 7km SSW of Huron, CA
  10. 1.5 10km NNW of Avenal, CA
  11. 1.5 10km NNW of Avenal, CA
  12. 2.3 6km N of Lemoore, CA
  13. 1.9 10km N of Avenal, CA
  14. 2.1 6km SSE of Riverdale, CA
  15. 2.1 8km NNW of Avenal, 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.