QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2md

14km SW of Whitehawk, CA

· 0.1 km deep · released about 69 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Sierra County 12 kmNevada County 37 kmPlumas County 44 kmPlacer County 62 kmYuba County 71 kmButte County 82 kmCarson City 93 kmEl Dorado County 93 kmStorey County 98 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 2.2 (md)
Depth
0.1 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Sierra County, 12 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2246 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 69 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 220,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 150,000× the energy of this one
  3. Around the size people start to feel M 3.0 14× the energy of this one
  4. This earthquake M 2.2 about 69 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 39.6197, -120.6470. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Sierra County, CA 12 km (7 mi) WNW of here earthquakes near Sierra County
Nevada County, CA 37 km (23 mi) NNE of here earthquakes near Nevada County
Plumas County, CA 44 km (27 mi) SSE of here earthquakes near Plumas County
Placer County, CA 62 km (39 mi) N of here earthquakes near Placer County
Yuba County, CA 71 km (44 mi) ENE of here earthquakes near Yuba County
Butte County, CA 82 km (51 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

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

  1. 2.4 1km NW of Lake Davis, CA
  2. 2.1 1km WNW of Lake Davis, CA
  3. 2.0 1km NW of Lake Davis, CA
  4. 2.8 0km N of Lake Davis, CA
  5. 2.2 1km WNW of Lake Davis, CA
  6. 2.8 0km ESE of Lake Davis, CA
  7. 3.0 0km NNW of Lake Davis, CA
  8. 2.4 0km NNW of Lake Davis, CA
  9. 2.5 0km NW of Lake Davis, CA
  10. 2.1 0km NE of Lake Davis, CA
  11. 2.2 1km WNW of Lake Davis, CA
  12. 2.2 0km WNW of Lake Davis, CA
  13. 2.4 12km NW of Truckee, CA
  14. 2.0 1km NW of Lake Davis, CA
  15. 1.5 15 km SSE of Sierraville, California

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.