QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

22km SW of Whitehawk, CA

· -1.0 km deep · released about 98 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Sierra County 16 kmNevada County 31 kmPlumas County 47 kmPlacer County 57 kmYuba County 64 kmButte County 77 kmEl Dorado County 89 kmCarson City 95 kmStorey 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 2.3 (md)
Depth
-1.0 km below the surface
Felt
no reports yet
Nearest
Sierra County, 16 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2406 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 98 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 5.8 150,000× 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 9.8× the energy of this one
  4. This earthquake M 2.3 about 98 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 39.5752, -120.7118. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Sierra County, CA 16 km (10 mi) W of here earthquakes near Sierra County
Nevada County, CA 31 km (19 mi) N of here earthquakes near Nevada County
Plumas County, CA 47 km (29 mi) SSE of here earthquakes near Plumas County
Placer County, CA 57 km (35 mi) N of here earthquakes near Placer County
Yuba County, CA 64 km (40 mi) ENE of here earthquakes near Yuba County
Butte County, CA 77 km (48 mi) E of here earthquakes near Butte 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. 3.0 19km NW of Truckee, CA
  2. 4.7 19km NW of Truckee, CA
  3. 1.7 15 km SSE of Sierraville, California
  4. 2.7 20km NW of Truckee, CA
  5. 3.1 19km NW of Truckee, CA
  6. 1.5 15 km SSE of Sierraville, California
  7. 2.4 16km SW of Loyalton, CA
  8. 2.3 11km N of Truckee, CA
  9. 1.9 22km SSW of Whitehawk, CA
  10. 2.0 3km WSW of Whitehawk, CA
  11. 1.7 2 km ENE of East Quincy, California
  12. 1.6 16 km NNW of Truckee, California
  13. 1.8 3 km SSE of Sattley, California
  14. 2.1 18km WSW of Loyalton, CA
  15. 2.7 10km SSE of Beckwourth, 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.