QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2ml

4 km ENE of Floriston, California

· 5.7 km deep · released about 60 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Carson City 34 kmStorey County 39 kmSierra County 51 kmDouglas County 64 kmNevada County 70 kmPlacer County 75 kmLyon County 79 kmEl Dorado County 84 kmAlpine County 89 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 (ml)
Depth
5.7 km below the surface
Felt
2 reports · strongest reported intensity III
Nearest
Carson City, 34 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1511 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 60 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 5.8 250,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 180,000× the energy of this one
  3. Around the size people start to feel M 3.0 16× the energy of this one
  4. This earthquake M 2.2 about 60 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 39.4073, -119.9715. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Carson City, NV 34 km (21 mi) NW of here earthquakes near Carson City
Storey County, NV 39 km (24 mi) W of here earthquakes near Storey County
Sierra County, CA 51 km (32 mi) ESE of here earthquakes near Sierra County
Douglas County, NV 64 km (40 mi) NNW of here earthquakes near Douglas County
Nevada County, CA 70 km (43 mi) E of here earthquakes near Nevada County
Placer County, CA 75 km (47 mi) ENE of here earthquakes near Placer County

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

Aftershocks so far

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

  1. 2.9 10km SW of Cold Springs, NV
  2. 2.8 17km SSE of Whitehawk, CA
  3. 1.5 6 km NW of Carnelian Bay, California
  4. 1.6 9 km SSW of Cold Springs, Nevada
  5. 1.5 1 km SE of Dayton, Nevada
  6. 1.6 2 km WNW of Sattley, California
  7. 1.9 2 km SE of Dayton, Nevada
  8. 2.3 5 km ENE of Indian Hills, Nevada
  9. 1.9 Nevada
  10. 1.7 3 km NNE of Spanish Springs, Nevada
  11. 2.1 6 km SE of Carson City, Nevada
  12. 1.8 9 km NW of Loyalton, California
  13. 2.4 17km WSW of Truckee, CA
  14. 1.6 5 km ENE of Indian Hills, Nevada
  15. 3.2 5 km ENE of Indian Hills, 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.