QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7md

4km E of Truckee, CA

· 6.9 km deep · released about 390 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Carson City 39 kmSierra County 43 kmNevada County 54 kmStorey County 55 kmPlacer County 58 kmDouglas County 66 kmEl Dorado County 69 kmAlpine County 84 kmLyon County 88 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 2.7 (md)
Depth
6.9 km below the surface
Felt
14 reports · strongest reported intensity III
Nearest
Carson City, 39 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1521 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 14 people have reported feeling it to USGS.

How big was it?

This earthquake released about 390 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 39,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 28,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.5× the energy of this one
  4. This earthquake M 2.7 about 390 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 39.3263, -120.1420. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Carson City, NV 39 km (24 mi) WNW of here earthquakes near Carson City
Sierra County, CA 43 km (27 mi) SE of here earthquakes near Sierra County
Nevada County, CA 54 km (34 mi) E of here earthquakes near Nevada County
Storey County, NV 55 km (34 mi) WSW of here earthquakes near Storey County
Placer County, CA 58 km (36 mi) ENE of here earthquakes near Placer County
Douglas County, NV 66 km (41 mi) NW of here earthquakes near Douglas County

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

Aftershocks so far

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

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

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 730 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.