QuakeIndex

Earthquake · reviewed by a seismologist

M 3.4ml

Earthquake near Bakersfield, CA

No earthquake was likely felt in Bakersfield in the 24 hours to 5:14 am PST (13:14 UTC). The last one was M 2.8, 21 km (13 mi) S, at 2:35 am PDT on 29 July 2026, estimated intensity II (weak) in town; 1 felt report to USGS. Every earthquake near Bakersfield

This page: a magnitude 3.4 earthquake was recorded 37 km (23 mi) south-southeast of Bakersfield, CA, at 4:12 am PDT on 5 May 2023 (11:12 UTC), 14 km deep. 24 people have reported feeling it to USGS.

USGS: 13km NNE of Grapevine, CA

35 km (22 mi) SSE of Bakersfield, CA · 124 km (77 mi) NNW of Los Angeles, CA

4:12 am PDT, May 5, 2023 · · 14 km deep · released about 1.8 tons of TNT

10 km30 km60 km120 km N Kern County 36 kmVentura County 80 kmLos Angeles County 112 kmSanta Barbara County 119 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
4:12 am PDT on 5 May 2023 ()
Where
37 km (23 mi) south-southeast of Bakersfield, CA · earthquakes near Bakersfield
Magnitude
M 3.4 (ml)
Depth
14 km below the surface
Felt
24 reports · strongest reported intensity III
Nearest
Kern County, 36 km NNE
Nearest mapped fault
Wheeler Ridge fault, 8 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 1216 days ago

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

At this magnitude and depth, people at rest would likely notice it out to about 55 km (34 mi) from the epicentre. In Bakersfield, 37 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: Arvin 18 km, intensity III · Lamont 23 km, intensity II · Frazier Park 26 km, intensity II · Bakersfield 37 km, intensity II · Tehachapi 42 km, intensity II · Oildale 42 km, intensity II · Rosedale 43 km, intensity II · Maricopa 46 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 1.8 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.4 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 95,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 4,300× the energy of this one
  3. Magna, Utah 2020 M 5.7 3,000× the energy of this one
  4. This earthquake M 3.4 about 1.8 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 3.7× more

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

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record lists 29 earthquakes of M5 or more within 50 km; the five largest:

  1. 7.5 The 1952 Kern County, California Earthquake · 14 km SW of this epicentre
  2. 6.0 Tejon Pass, California · 17 km S of this epicentre
  3. 5.8 Near Bakersfield, California · 29 km NNE of this epicentre
  4. 5.8 13km WNW of Grapevine, CA · 18 km WSW of this epicentre
  5. 5.7 11km N of Lamont, CA · 33 km N 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 35.0560, -118.8973. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Kern County, CA 36 km (22 mi) NNE earthquakes near Kern County
Ventura County, CA 80 km (50 mi) SSW earthquakes near Ventura County
Los Angeles County, CA 112 km (70 mi) SSE earthquakes near Los Angeles County
Santa Barbara County, CA 119 km (74 mi) WSW earthquakes near Santa Barbara County
Kings County, CA 140 km (87 mi) NW earthquakes near Kings 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. 1.8 7 km SSE of Neenach, CA
  2. 1.6 20 km SW of Lamont, CA
  3. 1.7 13 km SE of Tehachapi, CA
  4. 1.7 25 km SW of Bodfish, CA
  5. 1.9 20 km N of Pine Mountain Club, CA
  6. 3.0 9 km WSW of Grapevine, CA
  7. 2.1 24 km NNW of Tehachapi, CA
  8. 1.7 26 km SSW of Bodfish, CA
  9. 1.9 2 km NW of Frazier Park, CA
  10. 3.4 19 km SW of Lamont, CA
  11. 1.5 11 km ENE of Pine Mountain Club, CA
  12. 3.4 11 km WSW of Grapevine, CA
  13. 1.8 8 km ENE of Lebec, CA
  14. 2.5 17 km NE of Taft, CA
  15. 3.3 23 km NNW of Tehachapi, 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.