QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

4 km SSE of Floriston, California

· 5.9 km deep · released about 7.6 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Carson City 32 kmStorey County 42 kmSierra County 51 kmDouglas County 61 kmNevada County 66 kmPlacer County 70 kmEl Dorado County 78 kmLyon County 79 kmAlpine County 84 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 1.6 (ml)
Depth
5.9 km below the surface
Felt
no reports yet
Nearest
Carson City, 32 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1290 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 7.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.6 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 39.3585, -120.0051. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Carson City, NV 32 km (20 mi) NW of here earthquakes near Carson City
Storey County, NV 42 km (26 mi) WSW of here earthquakes near Storey County
Sierra County, CA 51 km (31 mi) ESE of here earthquakes near Sierra County
Douglas County, NV 61 km (38 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 70 km (44 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. 3.1 5 km E of Spanish Springs, Nevada
  2. 2.2 4 km ESE of Spanish Springs, Nevada
  3. 3.4 4 km E of Spanish Springs, Nevada
  4. 2.3 7 km S of Cold Springs, Nevada
  5. 1.6 Nevada
  6. 1.8 6 km SSE of Cold Springs, Nevada
  7. 1.9 7 km S of Cold Springs, Nevada
  8. 2.5 6 km S of Cold Springs, Nevada
  9. 2.0 Nevada
  10. 1.5 5 km SSE of Floriston, California
  11. 1.6 5 km SSE of Floriston, California
  12. 2.8 6 km S of Cold Springs, Nevada
  13. 2.4 7 km S of Cold Springs, Nevada
  14. 1.6 7 km S of Cold Springs, Nevada
  15. 1.6 7 km S of Cold Springs, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.7 on 2021-05-07 — it released about 38,000 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.