QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5ml

29km W of Olancha, CA

· 0.7 km deep · released about 150 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Tulare County 42 kmInyo County 87 kmKern County 113 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 2.5 (ml)
Depth
0.7 km below the surface
Felt
no reports yet
Nearest
Tulare County, 42 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 710 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 150 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 72,000× the energy of this one
  3. Around the size people start to feel M 3.0 6.5× the energy of this one
  4. This earthquake M 2.5 about 150 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 36.3105, -118.3267. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Tulare County, CA 42 km (26 mi) ENE of here earthquakes near Tulare County
Inyo County, CA 87 km (54 mi) WSW of here earthquakes near Inyo County
Kern County, CA 113 km (70 mi) NNE of here earthquakes near Kern County
Fresno County, CA 129 km (80 mi) ESE of here earthquakes near Fresno County

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

Aftershocks so far

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

  1. 1.6 10km NE of Coso Junction, CA
  2. 2.2 18km SW of Olancha, CA
  3. 1.6 18km SW of Olancha, CA
  4. 1.8 18km SW of Olancha, CA
  5. 1.8 18km SW of Olancha, CA
  6. 1.8 18km SW of Olancha, CA
  7. 1.6 18km SW of Olancha, CA
  8. 2.3 18km SW of Olancha, CA
  9. 2.2 18km SW of Olancha, CA
  10. 2.0 18km SW of Olancha, CA
  11. 1.7 18km SW of Olancha, CA
  12. 1.9 9km ENE of Coso Junction, CA
  13. 1.5 9km NE of Coso Junction, CA
  14. 1.6 6km E of Coso Junction, CA
  15. 1.6 10km NE 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.6 on 2019-07-18 — it released about 1,900 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.