QuakeIndex

Earthquake · reviewed by a seismologist

M 3.1ml

22km S of Trona, CA

· 2.5 km deep · released about 1,200 lb of TNT

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10 km30 km60 km120 km N Inyo County 110 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
2.5 km below the surface
Felt
no reports yet
Nearest
Inyo County, 110 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2391 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 1,200 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 6.7 280,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 12,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 8,800× the energy of this one
  4. This earthquake M 3.1 about 1,200 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.3× 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 35.5700, -117.3425. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Inyo County, CA 110 km (69 mi) S of here earthquakes near Inyo County
San Bernardino County, CA 132 km (82 mi) NW of here earthquakes near San Bernardino County

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

Aftershocks so far

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

  1. 2.4 23km S of Trona, CA
  2. 1.9 14km SW of Searles Valley, CA
  3. 1.9 20km ESE of Little Lake, CA
  4. 1.8 21km E of Little Lake, CA
  5. 1.9 13km SSW of Searles Valley, CA
  6. 2.2 20km ESE of Little Lake, CA
  7. 3.0 17km W of Searles Valley, CA
  8. 2.8 19km NE of Johannesburg, CA
  9. 2.4 22km N of Ridgecrest, CA
  10. 1.9 14km W of Searles Valley, CA
  11. 2.8 13km WSW of Searles Valley, CA
  12. 2.5 20km ESE of Little Lake, CA
  13. 1.8 21km ESE of Little Lake, CA
  14. 2.1 13km ENE of Ridgecrest, CA
  15. 1.8 26km ESE of Ridgecrest, 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 1,100,000 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.