QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

Earthquake near Corcoran, CA

No earthquake was likely felt in Corcoran in the 24 hours to 5:18 am PST (13:18 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 2.4 earthquake was recorded 9 km (5 mi) west-southwest of Corcoran, CA, at 9:31 am PDT on 15 June 2021 (16:31 UTC), 16 km deep.

USGS: 9km WSW of Corcoran, CA

79 km (49 mi) S of Fresno, CA · 28 km (17 mi) S of Hanford, CA

9:31 am PDT, Jun 15, 2021 · · 16 km deep · released about 100 lb of TNT

10 km30 km60 km120 km N Kings County 15 kmFresno County 76 kmTulare County 80 kmSan Luis Obispo County 105 kmKern County 116 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
9:31 am PDT on 15 June 2021 ()
Where
9 km (5 mi) west-southwest of Corcoran, CA · earthquakes near Corcoran
Magnitude
M 2.4 (md)
Depth
16 km below the surface
Felt
no reports yet
Nearest
Kings County, 15 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1974 days ago

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

At this magnitude and depth, people at rest would likely notice it out to about 12 km (7 mi) from the epicentre. In Corcoran, 9 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.

Likely felt in: Corcoran 9 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 100 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 5.8 150,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 110,000× the energy of this one
  3. Around the size people start to feel M 3.0 9.4× the energy of this one
  4. This earthquake M 2.4 about 100 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 300 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 · 46 km W 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 36.0782, -119.6532. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Kings County, CA 15 km (9 mi) W earthquakes near Kings County
Fresno County, CA 76 km (47 mi) N earthquakes near Fresno County
Tulare County, CA 80 km (50 mi) ENE earthquakes near Tulare County
San Luis Obispo County, CA 105 km (65 mi) SW earthquakes near San Luis Obispo County
Kern County, CA 116 km (72 mi) SE earthquakes near Kern County

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

Aftershocks so far

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

  1. 1.6 5km W of Avenal, CA
  2. 1.5 9km NNW of Avenal, CA
  3. 1.5 9km NNW of Avenal, CA
  4. 2.2 9km NNW of Avenal, CA
  5. 1.7 8km N of Kettleman City, CA
  6. 1.6 9km NW of Avenal, CA
  7. 1.8 21km SSE of Kettleman City, CA
  8. 1.6 22km SSE of Kettleman City, CA
  9. 1.8 21km SSE of Kettleman City, CA
  10. 1.6 14km SSE of Avenal, CA
  11. 1.7 12km N of Huron, CA
  12. 1.8 9km SSE of Huron, CA
  13. 2.3 17km SW of Corcoran, CA
  14. 2.2 5km NW of Avenal, CA
  15. 1.7 8km SSE of Kettleman City, 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.