QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3ml

7km NNW of Delano, CA

· 19 km deep · released about 72 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kings County 56 kmTulare County 62 kmKern County 72 kmFresno County 109 kmSan Luis Obispo County 118 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 2.3 (ml)
Depth
19 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Kings County, 56 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2174 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 72 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 5.8 210,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 150,000× the energy of this one
  3. Around the size people start to feel M 3.0 13× the energy of this one
  4. This earthquake M 2.3 about 72 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 35.8310, -119.2655. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kings County, CA 56 km (35 mi) ESE of here earthquakes near Kings County
Tulare County, CA 62 km (39 mi) SW of here earthquakes near Tulare County
Kern County, CA 72 km (45 mi) NW of here earthquakes near Kern County
Fresno County, CA 109 km (68 mi) SSE of here earthquakes near Fresno County
San Luis Obispo County, CA 118 km (73 mi) ENE of here earthquakes near San Luis Obispo County

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

Aftershocks so far

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

  1. 2.0 7 km NE of Buttonwillow, CA
  2. 1.8 25 km SW of Alpaugh, CA
  3. 2.0 6 km N of Delano, CA
  4. 2.2 8 km N of Delano, CA
  5. 1.5 22km ENE of Delano, CA
  6. 1.8 15km ENE of Shafter, CA
  7. 1.7 18km NE of Oildale, CA
  8. 2.0 15km ESE of Porterville, CA
  9. 1.9 7km NNE of Porterville, CA
  10. 1.7 10km E of Shafter, CA
  11. 3.1 10km ENE of Porterville, CA
  12. 1.6 28km NW of Buttonwillow, CA
  13. 1.7 28km NW of Buttonwillow, CA
  14. 1.9 8km WSW of Shafter, CA
  15. 1.7 22km SE 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.9 on 2016-02-24 — it released about 8,500 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.