QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

26km ENE of Dardanelle, CA

· -1.7 km deep · released about 88 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Alpine County 25 kmDouglas County 49 kmTuolumne County 60 kmLyon County 70 kmCarson City 77 kmMono County 88 kmEl Dorado County 89 kmCalaveras County 90 kmAmador County 93 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 2.3 (md)
Depth
-1.7 km below the surface
Felt
no reports yet
Nearest
Alpine County, 25 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2607 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 88 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 170,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 120,000× the energy of this one
  3. Around the size people start to feel M 3.0 11× the energy of this one
  4. This earthquake M 2.3 about 88 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 38.4680, -119.5888. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Alpine County, CA 25 km (16 mi) SE of here earthquakes near Alpine County
Douglas County, NV 49 km (30 mi) S of here earthquakes near Douglas County
Tuolumne County, CA 60 km (37 mi) NNE of here earthquakes near Tuolumne County
Lyon County, NV 70 km (44 mi) SSW of here earthquakes near Lyon County
Carson City, NV 77 km (48 mi) S of here earthquakes near Carson City
Mono County, CA 88 km (54 mi) NW of here earthquakes near Mono 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 8km NE of Markleeville, CA
  2. 1.6 4 km S of Topaz Lake, Nevada
  3. 2.4 18km E of Markleeville, CA
  4. 1.6 2 km WSW of Topaz Lake, Nevada
  5. 1.5 11 km WSW of Topaz, California
  6. 2.4 12km NNW of Bridgeport, CA
  7. 1.8 10km WNW of Bridgeport, CA
  8. 1.6 8 km E of Topaz, California
  9. 2.1 23km NE of Dardanelle, CA
  10. 1.8 10 km NW of Topaz Lake, Nevada
  11. 1.7 5 km ESE of Topaz Lake, Nevada
  12. 2.3 20km E of Markleeville, CA
  13. 2.7 21km E of Markleeville, CA
  14. 1.5 2 km S of Topaz Lake, Nevada
  15. 1.9 9km ESE of Bridgeport, 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.