QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

5 km SSE of Floriston, California

· 4.5 km deep · released about 5.4 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Carson City 31 kmStorey County 43 kmSierra County 51 kmDouglas County 60 kmNevada County 66 kmPlacer County 69 kmEl Dorado County 77 kmLyon County 78 kmAlpine County 82 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
4.5 km below the surface
Felt
no reports yet
Nearest
Carson City, 31 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3121 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 39.3450, -120.0052. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Carson City, NV 31 km (19 mi) NW of here earthquakes near Carson City
Storey County, NV 43 km (26 mi) WSW of here earthquakes near Storey County
Sierra County, CA 51 km (32 mi) ESE of here earthquakes near Sierra County
Douglas County, NV 60 km (37 mi) NW of here earthquakes near Douglas County
Nevada County, CA 66 km (41 mi) E of here earthquakes near Nevada County
Placer County, CA 69 km (43 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

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

  1. 1.8 5 km NE of Indian Hills, Nevada
  2. 1.6 5 km SE of Carson City, Nevada
  3. 3.2 5 km NE of Indian Hills, Nevada
  4. 1.5 6 km NE of Indian Hills, Nevada
  5. 2.2 9 km NNE of Glenbrook, Nevada
  6. 1.7 10 km E of Sparks, Nevada
  7. 3.0 4km WSW of Tahoe Vista, CA
  8. 1.7 11 km SSW of Kingvale, California
  9. 1.6 0 km WNW of Carnelian Bay, California
  10. 1.6 13 km SE of Sparks, Nevada
  11. 2.1 0 km WNW of Skyland, Nevada
  12. 1.7 1 km W of Carnelian Bay, California
  13. 1.6 4 km WSW of Sattley, California
  14. 1.5 4 km WSW of Sattley, California
  15. 1.6 1 km WNW of Carnelian Bay, 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.