QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

17km WSW of Truckee, CA

· 2.9 km deep · released about 120 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Sierra County 34 kmNevada County 34 kmPlacer County 40 kmCarson City 56 kmEl Dorado County 58 kmStorey County 75 kmDouglas County 79 kmYuba County 84 kmPlumas County 87 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 2.4 (md)
Depth
2.9 km below the surface
Felt
no reports yet
Nearest
Sierra County, 34 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2773 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 120 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 120,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 86,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.7× the energy of this one
  4. This earthquake M 2.4 about 120 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 39.2948, -120.3718. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Sierra County, CA 34 km (21 mi) SSE of here earthquakes near Sierra County
Nevada County, CA 34 km (21 mi) E of here earthquakes near Nevada County
Placer County, CA 40 km (25 mi) NE of here earthquakes near Placer County
Carson City, NV 56 km (35 mi) WNW of here earthquakes near Carson City
El Dorado County, CA 58 km (36 mi) NNE of here earthquakes near El Dorado County
Storey County, NV 75 km (46 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

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

  1. 2.8 15km NW of Truckee, CA
  2. 1.8 18 km E of Foresthill, California
  3. 2.2 3km NE of Dollar Point, CA
  4. 2.1 8km N of Truckee, CA
  5. 2.2 15km NW of Truckee, CA
  6. 2.5 16km W of Truckee, CA
  7. 2.8 25km W of Sunnyside-Tahoe City, CA
  8. 2.0 11km NNE of Tahoe Vista, CA
  9. 1.5 6 km NNW of Incline Village, Nevada
  10. 2.4 6 km SW of Cold Springs, Nevada
  11. 1.8 5 km SW of Cold Springs, Nevada
  12. 2.8 17km NNW of Truckee, CA
  13. 2.4 18km NNW of Truckee, CA
  14. 3.7 17km NNW of Truckee, CA
  15. 1.5 6 km SW 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.

On USGS

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