QuakeIndex

Earthquake · reviewed by a seismologist

M 3.1ml

14km ESE of Lake Isabella, CA

· 2.8 km deep · released about 1,500 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kern County 44 kmTulare County 84 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 3.1 (ml)
Depth
2.8 km below the surface
Felt
9 reports · strongest reported intensity III
Nearest
Kern County, 44 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3356 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 9 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1,500 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.1 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 230,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 10,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 7,200× the energy of this one
  4. This earthquake M 3.1 about 1,500 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.6× 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.

Where

Epicentre 35.5678, -118.3312. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kern County, CA 44 km (27 mi) NE of here earthquakes near Kern County
Tulare County, CA 84 km (52 mi) SSE of here earthquakes near Tulare County
Inyo County, CA 138 km (86 mi) SW of here earthquakes near Inyo County

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

Aftershocks so far

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

  1. 1.5 16km WNW of Tehachapi, CA
  2. 1.8 25km NNW of Tehachapi, CA
  3. 1.8 26km SSW of Bodfish, CA
  4. 1.6 25km SW of Little Lake, CA
  5. 1.5 17km SSE of Bodfish, CA
  6. 1.6 26km NE of Arvin, CA
  7. 1.9 17km SSE of Bodfish, CA
  8. 2.2 20km ESE of Bodfish, CA
  9. 1.5 16km SSE of Bodfish, CA
  10. 1.6 16km SSE of Bodfish, CA
  11. 1.6 18km SSE of Bodfish, CA
  12. 1.8 17km SSE of Bodfish, CA
  13. 2.2 17km SSE of Bodfish, CA
  14. 1.6 14km ESE of Lake Isabella, CA
  15. 2.3 17km SSE of Bodfish, 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.