QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

4km N of Coso Junction, CA

· 5.1 km deep · released about 14 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Inyo County 73 kmTulare County 76 kmKern County 107 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 1.8 (ml)
Depth
5.1 km below the surface
Felt
no reports yet
Nearest
Inyo County, 73 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3223 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 14 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 1,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 790,000× the energy of this one
  3. Around the size people start to feel M 3.0 70× the energy of this one
  4. This earthquake M 1.8 about 14 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 36.0770, -117.9525. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Inyo County, CA 73 km (45 mi) SW of here earthquakes near Inyo County
Tulare County, CA 76 km (47 mi) ESE of here earthquakes near Tulare County
Kern County, CA 107 km (67 mi) NE of here earthquakes near Kern County

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

Aftershocks so far

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

  1. 1.5 17km NNE of Coso Junction, CA
  2. 2.0 39km E of Olancha, CA
  3. 1.6 14km NE of Coso Junction, CA
  4. 1.9 24km E of Coso Junction, CA
  5. 2.1 20km SE of Little Lake, CA
  6. 3.3 17km NNE of Coso Junction, CA
  7. 2.1 17km NNE of Coso Junction, CA
  8. 1.6 32km NNW of Searles Valley, CA
  9. 1.6 11km NE of Coso Junction, CA
  10. 1.5 8km E of Coso Junction, CA
  11. 1.6 25km NNE of Kernville, CA
  12. 1.7 6km E of Coso Junction, CA
  13. 1.8 25km NNE of Kernville, CA
  14. 1.7 15km NE of Little Lake, CA
  15. 1.6 8km ENE of Coso Junction, 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.