QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

Earthquake near Arvin, CA

No earthquake was likely felt in Arvin in the 24 hours to 8:06 am PST (16:06 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 1.6 earthquake was recorded 35 km (22 mi) south-southeast of Arvin, CA, at 10:59 pm PDT on 3 July 2021 (05:59 UTC), 5.8 km deep.

USGS: 17km NNW of Neenach, CA

51 km (32 mi) WNW of Lancaster, CA · 103 km (64 mi) NNW of Los Angeles, CA

10:59 pm PDT, Jul 3, 2021 · · 5.8 km deep · released about 6.4 lb of TNT

10 km30 km60 km120 km N Kern County 47 kmVentura County 76 kmLos Angeles County 89 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
10:59 pm PDT on 3 July 2021 ()
Where
35 km (22 mi) south-southeast of Arvin, CA · earthquakes near Arvin
Magnitude
M 1.6 (ml)
Depth
5.8 km below the surface
Felt
no reports yet
Nearest
Kern County, 47 km N
Nearest mapped fault
Garlock fault, under 1 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 1955 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 9 km (6 mi) from the epicentre. In Arvin, 35 km away, the estimate is intensity I (not felt). 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: Stallion Springs, Lebec, Bear Valley Springs, Frazier Park, Golden Hills, Tehachapi.

How big was it?

This earthquake released about 6.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,400,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,700,000× the energy of this one
  3. Around the size people start to feel M 3.0 150× the energy of this one
  4. This earthquake M 1.6 about 6.4 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

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

Before 2016, the USGS record lists 23 earthquakes of M5 or more within 50 km; the five largest:

  1. 7.5 The 1952 Kern County, California Earthquake · 31 km W of this epicentre
  2. 6.0 Tejon Pass, California · 22 km W of this epicentre
  3. 5.8 Near Bakersfield, California · 43 km NNW of this epicentre
  4. 5.8 13km WNW of Grapevine, CA · 37 km W of this epicentre
  5. 5.6 19km N of Tehachapi, CA · 46 km NNE 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 34.9258, -118.6608. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Kern County, CA 47 km (29 mi) N earthquakes near Kern County
Ventura County, CA 76 km (47 mi) SW earthquakes near Ventura County
Los Angeles County, CA 89 km (55 mi) SSE earthquakes near Los Angeles County

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

Aftershocks so far

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

  1. 1.6 13km SW of Lamont, CA
  2. 1.7 9km WSW of Grapevine, CA
  3. 2.3 25km SSW of Bodfish, CA
  4. 2.2 3km S of Frazier Park, CA
  5. 2.6 14km E of Arvin, CA
  6. 1.6 13km W of Mojave, CA
  7. 1.7 6km SSW of Mojave, CA
  8. 1.6 19km NW of Grapevine, CA
  9. 1.9 10km WSW of Grapevine, CA
  10. 1.5 7km SSW of Mojave, CA
  11. 1.7 16km N of Pine Mountain Club, CA
  12. 2.2 19km NW of Tehachapi, CA
  13. 1.8 12km WSW of Lake Hughes, CA
  14. 1.8 12km WSW of Lake Hughes, CA
  15. 1.8 22km 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.