QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

7 km SSE of Markleeville, California

· -1.1 km deep · released about 94 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Alpine County 5 kmDouglas County 32 kmCarson City 58 kmLyon County 64 kmTuolumne County 71 kmEl Dorado County 71 kmAmador County 82 kmCalaveras County 86 kmStorey County 92 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
-1.1 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Alpine County, 5 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3009 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 94 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 5.8 160,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 110,000× the energy of this one
  3. Around the size people start to feel M 3.0 10× the energy of this one
  4. This earthquake M 2.3 about 94 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 38.6325, -119.7425. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Alpine County, CA 5 km (3 mi) ENE of here earthquakes near Alpine County
Douglas County, NV 32 km (20 mi) SSW of here earthquakes near Douglas County
Carson City, NV 58 km (36 mi) S of here earthquakes near Carson City
Lyon County, NV 64 km (40 mi) SW of here earthquakes near Lyon County
Tuolumne County, CA 71 km (44 mi) NNE of here earthquakes near Tuolumne County
El Dorado County, CA 71 km (44 mi) ESE of here earthquakes near El Dorado County

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

Aftershocks so far

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

  1. 2.1 24km SSW of Smith Valley, NV
  2. 1.5 California-Nevada border region
  3. 2.4 19km E of Markleeville, CA
  4. 2.5 8km NE of Markleeville, CA
  5. 2.3 7km NE of Markleeville, CA
  6. 2.3 7km SSW of Markleeville, CA
  7. 1.7 7 km SSW of Carter Springs, Nevada
  8. 1.5 5 km NW of Topaz, California
  9. 2.3 3km W of Markleeville, CA
  10. 1.5 7 km NE of Markleeville, California
  11. 1.5 8 km NE of Markleeville, California
  12. 2.6 9km NE of Markleeville, CA
  13. 2.6 9km NE of Markleeville, CA
  14. 2.3 8km SSE of Markleeville, CA
  15. 1.6 7 km SSE of Topaz Ranch Estates, 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

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