QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

22km NW of Inyokern, CA

· 2.2 km deep · released about 37 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kern County 79 kmTulare County 87 kmInyo County 105 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 2.1 (ml)
Depth
2.2 km below the surface
Felt
no reports yet
Nearest
Kern County, 79 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1615 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 37 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 410,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 290,000× the energy of this one
  3. Around the size people start to feel M 3.0 26× the energy of this one
  4. This earthquake M 2.1 about 37 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 35.7563, -118.0143. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kern County, CA 79 km (49 mi) NE of here earthquakes near Kern County
Tulare County, CA 87 km (54 mi) SE of here earthquakes near Tulare County
Inyo County, CA 105 km (65 mi) SSW of here earthquakes near Inyo County

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

Aftershocks so far

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

  1. 1.5 5km WNW of Wofford Heights, CA
  2. 1.8 13km SE of Bodfish, CA
  3. 1.6 21km ESE of Little Lake, CA
  4. 3.1 20km NNE of Ridgecrest, CA
  5. 1.6 20km ESE of Little Lake, CA
  6. 2.8 20km ESE of Little Lake, CA
  7. 1.6 17km W of Searles Valley, CA
  8. 1.6 7km ENE of Coso Junction, CA
  9. 1.5 6km NNE of Little Lake, CA
  10. 2.0 6km SE of Coso Junction, CA
  11. 1.6 12km WSW of Searles Valley, CA
  12. 1.6 12km ENE of Ridgecrest, CA
  13. 1.8 15km SW of Searles Valley, CA
  14. 1.7 11km NE of Coso Junction, CA
  15. 2.0 13km SE 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.

For this area

The largest earthquake within 50 km in our catalogue was M 7.1 on 2019-07-06 — it released about 36,000,000 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.