QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

3 km NW of Topaz, California

· 10 km deep · released about 5.4 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Alpine County 22 kmDouglas County 29 kmLyon County 52 kmCarson City 59 kmTuolumne County 78 kmEl Dorado County 87 kmStorey County 88 kmAmador County 98 kmMineral County 100 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 1.5 (ml)
Depth
10 km below the surface
Felt
no reports yet
Nearest
Alpine County, 22 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2116 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 5.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,800,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 2,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 180× the energy of this one
  4. This earthquake M 1.5 about 5.4 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 38.6437, -119.5512. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Alpine County, CA 22 km (13 mi) E of here earthquakes near Alpine County
Douglas County, NV 29 km (18 mi) S of here earthquakes near Douglas County
Lyon County, NV 52 km (32 mi) SW of here earthquakes near Lyon County
Carson City, NV 59 km (37 mi) SSE of here earthquakes near Carson City
Tuolumne County, CA 78 km (48 mi) NNE of here earthquakes near Tuolumne County
El Dorado County, CA 87 km (54 mi) E 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

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

  1. 3.9 31km NW of Bridgeport, CA
  2. 3.6 28km SE of Markleeville, CA
  3. 2.3 28km ENE of Dardanelle, CA
  4. 3.0 31km SE of Markleeville, CA
  5. 4.2 29km SE of Markleeville, CA
  6. 2.8 32km SE of Markleeville, CA
  7. 2.0 30km ENE of Dardanelle, CA
  8. 2.4 29km SE of Markleeville, CA
  9. 2.5 32km ENE of Dardanelle, CA
  10. 2.2 34km ENE of Dardanelle, CA
  11. 2.6 31km ENE of Dardanelle, CA
  12. 2.5 5 km W of Walker, California
  13. 3.8 28km SE of Markleeville, CA
  14. 2.7 29km ENE of Dardanelle, CA
  15. 3.5 28km ESE of Markleeville, 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

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