QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

Earthquake near Arvin, CA

No earthquake was likely felt in Arvin in the 24 hours to 5:54 am PST (13:54 UTC). The last one was M 2.8, 14 km (9 mi) WSW, at 2:35 am PDT on 29 July 2026, estimated intensity II (weak) in town; 1 felt report to USGS. Every earthquake near Arvin

This page: a magnitude 1.8 earthquake was recorded 14 km (9 mi) east of Arvin, CA, at 2:33 pm PST on 23 February 2023 (22:33 UTC), 6.0 km deep.

USGS: 14km E of Arvin, CA

37 km (23 mi) ESE of Bakersfield, CA · 134 km (83 mi) N of Los Angeles, CA

2:33 pm PST, Feb 23, 2023 · · 6.0 km deep · released about 15 lb of TNT

10 km30 km60 km120 km N Kern County 17 kmVentura County 103 kmTulare County 115 kmLos Angeles 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
2:33 pm PST on 23 February 2023 ()
Where
14 km (9 mi) east of Arvin, CA · earthquakes near Arvin
Magnitude
M 1.8 (ml)
Depth
6.0 km below the surface
Felt
no reports yet
Nearest
Kern County, 17 km NNW
Nearest mapped fault
White Wolf fault, 3 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 1357 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 Arvin, 14 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: Bear Valley Springs, Stallion Springs, Golden Hills, Tehachapi, Weedpatch, Lamont.

How big was it?

This earthquake released about 15 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 710,000× the energy of this one
  3. Around the size people start to feel M 3.0 63× the energy of this one
  4. This earthquake M 1.8 about 15 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 2021-08-27 — about 2,000 times the energy of this one.

Before 2016, the USGS record lists 30 earthquakes of M5 or more within 50 km; the five largest:

  1. 7.5 The 1952 Kern County, California Earthquake · 40 km SW of this epicentre
  2. 6.0 Tejon Pass, California · 40 km SSW of this epicentre
  3. 5.8 Near Bakersfield, California · 16 km NW of this epicentre
  4. 5.8 13km WNW of Grapevine, CA · 44 km SW of this epicentre
  5. 5.7 11km N of Lamont, CA · 26 km NW 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 35.2028, -118.6732. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Kern County, CA 17 km (10 mi) NNW earthquakes near Kern County
Ventura County, CA 103 km (64 mi) SSW earthquakes near Ventura County
Tulare County, CA 115 km (71 mi) N earthquakes near Tulare County
Los Angeles County, CA 118 km (73 mi) SSE earthquakes near Los Angeles County
Kings County, CA 141 km (88 mi) NW earthquakes near Kings County

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

Aftershocks so far

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

  1. 1.5 21km SW of Lamont, CA
  2. 1.7 21km SW of Lamont, CA
  3. 1.5 20km SW of Lamont, CA
  4. 2.1 19km NNW of Grapevine, CA
  5. 1.9 20km SW of Lamont, CA
  6. 2.0 10km NW of Tehachapi, CA
  7. 1.9 23km ESE of Bodfish, CA
  8. 1.6 23km ESE of Bodfish, CA
  9. 2.6 13km SE of Bodfish, CA
  10. 2.0 25km N of Tehachapi, CA
  11. 1.9 13km SE of Bodfish, CA
  12. 1.6 24km S of Bodfish, CA
  13. 2.0 23km NW of Grapevine, CA
  14. 1.6 12km SE of Bodfish, CA
  15. 1.7 18km NE of Oildale, 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.