QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

20km SW of Olancha, CA

· 11 km deep · released about 5.4 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Tulare County 55 kmInyo County 82 kmKern County 104 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 1.5 (ml)
Depth
11 km below the surface
Felt
no reports yet
Nearest
Tulare County, 55 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1427 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 5.4 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 2,800,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 2,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 180× the energy of this one
  4. This earthquake M 1.5 about 5.4 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.

Where

Epicentre 36.1648, -118.1788. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Tulare County, CA 55 km (34 mi) E of here earthquakes near Tulare County
Inyo County, CA 82 km (51 mi) WSW of here earthquakes near Inyo County
Kern County, CA 104 km (64 mi) NNE of here earthquakes near Kern County

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

Aftershocks so far

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

  1. 2.0 15km ESE of Olancha, CA
  2. 2.9 15km ESE of Olancha, CA
  3. 1.6 20km ENE of Little Lake, CA
  4. 1.8 18km NE of Olancha, CA
  5. 1.8 18km NE of Olancha, CA
  6. 1.6 19km WSW of Olancha, CA
  7. 2.1 13km ESE of Olancha, CA
  8. 2.4 12km ESE of Coso Junction, CA
  9. 1.5 40km WSW of Olancha, CA
  10. 1.6 18km E of Little Lake, CA
  11. 1.6 8km ESE of Coso Junction, CA
  12. 2.2 15km SSW of Olancha, CA
  13. 1.5 14km SSW of Olancha, CA
  14. 1.7 14km SSW of Olancha, CA
  15. 1.8 15km ESE of Little Lake, 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 5.8 on 2020-06-24 — it released about 2,800,000 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.