QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8md

6km WSW of Cold Springs, NV

· 2.1 km deep · released about 550 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Sierra County 42 kmStorey County 50 kmCarson City 61 kmNevada County 74 kmPlumas County 77 kmPlacer County 88 kmDouglas County 91 kmLyon County 101 kmEl Dorado County 106 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 2.8 (md)
Depth
2.1 km below the surface
Felt
6 reports · strongest reported intensity IV
Nearest
Sierra County, 42 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2322 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 6 people have reported feeling it to USGS.

How big was it?

This earthquake released about 550 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 28,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 19,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.7× the energy of this one
  4. This earthquake M 2.8 about 550 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 39.6548, -120.0400. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Sierra County, CA 42 km (26 mi) ENE of here earthquakes near Sierra County
Storey County, NV 50 km (31 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 74 km (46 mi) ENE of here earthquakes near Nevada County
Plumas County, CA 77 km (48 mi) ESE of here earthquakes near Plumas County
Placer County, CA 88 km (55 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

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

  1. 2.3 7km NW of Verdi-Mogul, NV
  2. 2.2 15km NNW of Incline Village-Crystal Bay, NV
  3. 1.5 Northern California
  4. 1.6 4 km E of Cold Springs, Nevada
  5. 1.6 4 km E of Cold Springs, Nevada
  6. 1.5 7 km N of Incline Village, Nevada
  7. 1.5 16 km ENE of Doyle, California
  8. 2.4 4 km E of Cold Springs, Nevada
  9. 2.3 4 km E of Cold Springs, Nevada
  10. 1.8 4 km E of Cold Springs, Nevada
  11. 1.7 4 km E of Cold Springs, Nevada
  12. 1.5 13 km SE of Sparks, Nevada
  13. 1.8 8 km E of Floriston, California
  14. 2.1 8 km E of Floriston, California
  15. 1.7 8 km E of Floriston, 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.