QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

7km SSW of Markleeville, CA

· 2.1 km deep · released about 74 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Alpine County 3 kmDouglas County 36 kmCarson City 58 kmEl Dorado County 64 kmTuolumne County 69 kmLyon County 70 kmAmador County 75 kmCalaveras County 80 kmPlacer County 91 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
2.1 km below the surface
Felt
no reports yet
Nearest
Alpine County, 3 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2454 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 74 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 5.8 200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 140,000× the energy of this one
  3. Around the size people start to feel M 3.0 13× the energy of this one
  4. This earthquake M 2.3 about 74 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 38.6322, -119.8248. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Alpine County, CA 3 km (2 mi) WNW of here earthquakes near Alpine County
Douglas County, NV 36 km (22 mi) SSW of here earthquakes near Douglas County
Carson City, NV 58 km (36 mi) S of here earthquakes near Carson City
El Dorado County, CA 64 km (40 mi) ESE of here earthquakes near El Dorado County
Tuolumne County, CA 69 km (43 mi) N of here earthquakes near Tuolumne County
Lyon County, NV 70 km (43 mi) SW of here earthquakes near Lyon County

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

Aftershocks so far

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

  1. 3.7 31km SE of Markleeville, CA
  2. 4.3 32km SE of Markleeville, CA
  3. 3.0 30km SE of Markleeville, CA
  4. 3.2 2 km WNW of Walker, California
  5. 5.0 32km SE of Markleeville, CA
  6. 6.0 Antelope Valley, CA
  7. 2.1 33km SE of Markleeville, CA
  8. 2.3 33km SE of Markleeville, CA
  9. 1.5 8 km ENE of Coleville, California
  10. 2.9 4km SSE of Markleeville, CA
  11. 1.9 12 km SE of Topaz Ranch Estates, Nevada
  12. 2.4 22km WNW of Bridgeport, CA
  13. 1.5 9 km N of Kirkwood, California
  14. 1.5 6 km NNE of Fish Springs, Nevada
  15. 1.9 4 km SSW of Smith Valley, Nevada

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.