QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5md

9 km ESE of Sierra Brooks, California

· 0.6 km deep · released about 5.9 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Sierra County 35 kmStorey County 54 kmCarson City 61 kmNevada County 67 kmPlumas County 73 kmPlacer County 81 kmDouglas County 91 kmEl Dorado County 100 kmLyon County 103 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 (md)
Depth
0.6 km below the surface
Felt
no reports yet
Nearest
Sierra County, 35 km W
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.

How big was it?

This earthquake released about 5.9 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 2,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,800,000× the energy of this one
  3. Around the size people start to feel M 3.0 160× the energy of this one
  4. This earthquake M 1.5 about 5.9 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 39.6222, -120.1127. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Sierra County, CA 35 km (22 mi) E of here earthquakes near Sierra County
Storey County, NV 54 km (34 mi) WNW of here earthquakes near Storey County
Carson City, NV 61 km (38 mi) NNW of here earthquakes near Carson City
Nevada County, CA 67 km (42 mi) ENE of here earthquakes near Nevada County
Plumas County, CA 73 km (46 mi) SE of here earthquakes near Plumas County
Placer County, CA 81 km (51 mi) NE of here earthquakes near Placer County

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

Aftershocks so far

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

  1. 1.5 5 km S of Floriston, California
  2. 2.2 12km N of Tahoe Vista, CA
  3. 2.9 12km N of Tahoe Vista, CA
  4. 1.6 12km N of Kings Beach, CA
  5. 2.3 12km N of Kings Beach, CA
  6. 2.1 12km N of Kings Beach, CA
  7. 2.1 12km NNE of Tahoe Vista, CA
  8. 2.3 10km NNW of Loyalton, CA
  9. 2.0 21km NW of Truckee, CA
  10. 1.5 11 km NW of Virginia City, Nevada
  11. 1.5 11 km NW of Virginia City, Nevada
  12. 1.7 18km SSW of Whitehawk, CA
  13. 1.8 12 km SE of Virginia City, NV
  14. 2.8 12 km NW of Virginia City, Nevada
  15. 1.6 12 km NW of Virginia City, 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.