QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

18 km W of Truckee, CA

· 2.5 km deep · released about 220 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Nevada County 34 kmSierra County 37 kmPlacer County 37 kmEl Dorado County 55 kmCarson City 56 kmStorey County 76 kmDouglas County 78 kmYuba County 83 kmAlpine 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 2.6 (md)
Depth
2.5 km below the surface
Felt
4 reports · strongest reported intensity III
Nearest
Nevada County, 34 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 430 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 4 people have reported feeling it to USGS.

How big was it?

This earthquake released about 220 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 70,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 50,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.4× the energy of this one
  4. This earthquake M 2.6 about 220 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 39.2653, -120.3808. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Nevada County, CA 34 km (21 mi) E of here earthquakes near Nevada County
Sierra County, CA 37 km (23 mi) SSE of here earthquakes near Sierra County
Placer County, CA 37 km (23 mi) NE of here earthquakes near Placer County
El Dorado County, CA 55 km (34 mi) NNE of here earthquakes near El Dorado County
Carson City, NV 56 km (35 mi) WNW of here earthquakes near Carson City
Storey County, NV 76 km (47 mi) WSW of here earthquakes near Storey County

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

Aftershocks so far

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

  1. 2.5 9 km NNE of Truckee, CA
  2. 2.5 9 km NNE of Truckee, CA
  3. 2.1 9 km NNE of Truckee, CA
  4. 1.9 32 km S of Whitehawk, CA
  5. 1.5 4 km W of Sattley, California
  6. 1.6 1 km W of Sattley, California
  7. 1.8 10 km N of Kings Beach, CA
  8. 2.4 11 km N of Kings Beach, CA
  9. 1.9 10 km N of Kings Beach, CA
  10. 2.4 10 km N of Kings Beach, CA
  11. 2.1 11 km N of Kings Beach, CA
  12. 2.0 19 km S of Johnsville, CA
  13. 1.6 4 km ENE of Dollar Point, CA
  14. 1.9 12 km SSE of Mogul, Nevada
  15. 1.6 12 km SSE of Mogul, 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 1,300 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.