QuakeIndex

Earthquake · reviewed by a seismologist

M 4.1mw

44km ENE of Trona, CA

· 6.1 km deep · released about 23 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Inyo County 85 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 4.1 (mw)
Depth
6.1 km below the surface
Felt
24 reports · strongest reported intensity III
Measured shaking
intensity V (ShakeMap)
USGS impact alert
green
Nearest
Inyo County, 85 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1512 days ago

This was a light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon. 24 people have reported feeling it to USGS.

How big was it?

This earthquake released about 23 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.1 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 7,400× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 330× the energy of this one
  3. Magna, Utah 2020 M 5.7 230× the energy of this one
  4. This earthquake M 4.1 about 23 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 48× 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 35.9043, -116.9223. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Inyo County, CA 85 km (53 mi) SSE of here earthquakes near Inyo County
San Bernardino County, CA 134 km (84 mi) NNW 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

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

  1. 2.3 40km ESE of Trona, CA
  2. 2.0 31km WSW of Tecopa, CA
  3. 1.6 40km NE of Trona, CA
  4. 2.1 36km W of Tecopa, CA
  5. 1.7 27km N of Searles Valley, CA
  6. 1.8 31km WSW of Tecopa, CA
  7. 1.6 40km NE of Trona, CA
  8. 1.6 30km SW of Tecopa, CA
  9. 2.3 29km SW of Tecopa, CA
  10. 2.3 37km NNW of Fort Irwin, CA
  11. 2.0 37km NNW of Fort Irwin, CA
  12. 1.6 37km WSW of Tecopa, CA
  13. 2.2 34km WSW of Tecopa, CA
  14. 1.5 49km WSW of Shoshone, CA
  15. 1.7 22 km WSW of Tecopa, California

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.