QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

7 km ENE of Floriston, California

· 8.6 km deep · released about 5.4 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Carson City 34 kmStorey County 36 kmSierra County 53 kmDouglas County 64 kmNevada County 73 kmLyon County 77 kmPlacer County 78 kmEl Dorado County 87 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 1.5 (ml)
Depth
8.6 km below the surface
Felt
no reports yet
Nearest
Carson City, 34 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1613 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 39.4164, -119.9390. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Carson City, NV 34 km (21 mi) NNW of here earthquakes near Carson City
Storey County, NV 36 km (22 mi) W of here earthquakes near Storey County
Sierra County, CA 53 km (33 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 73 km (45 mi) E of here earthquakes near Nevada County
Lyon County, NV 77 km (48 mi) NW of here earthquakes near Lyon County

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

Aftershocks so far

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

  1. 1.8 12 km E of Floriston, California
  2. 2.0 22km WNW of Truckee, CA
  3. 1.9 1 km NE of Carnelian Bay, California
  4. 1.8 4km WSW of Tahoe Vista, CA
  5. 1.9 4km N of Dollar Point, CA
  6. 1.9 4km WSW of Tahoe Vista, CA
  7. 2.3 11km NW of Verdi-Mogul, NV
  8. 2.7 21km WNW of Sunnyside-Tahoe City, CA
  9. 1.9 6 km NNW of Verdi, California
  10. 1.6 4 km SSE of Floriston, California
  11. 2.6 14km N of Kings Beach, CA
  12. 3.0 14km N of Kings Beach, CA
  13. 2.1 14km NNW of Incline Village-Crystal Bay, NV
  14. 1.5 9 km SSE of Beckwourth, California
  15. 1.5 2 km ESE of Truckee, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.7 on 2021-05-07 — it released about 53,000 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.