QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

9 km NNW of Truckee, California

· 11 km deep · released about 5.4 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Sierra County 32 kmNevada County 49 kmCarson City 49 kmPlacer County 58 kmStorey County 60 kmEl Dorado County 74 kmDouglas County 77 kmPlumas County 83 kmAlpine County 94 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
11 km below the surface
Felt
no reports yet
Nearest
Sierra County, 32 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2544 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 39.4067, -120.2170. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Sierra County, CA 32 km (20 mi) SE of here earthquakes near Sierra County
Nevada County, CA 49 km (31 mi) ENE of here earthquakes near Nevada County
Carson City, NV 49 km (31 mi) NW of here earthquakes near Carson City
Placer County, CA 58 km (36 mi) NE of here earthquakes near Placer County
Storey County, NV 60 km (37 mi) W of here earthquakes near Storey County
El Dorado County, CA 74 km (46 mi) NNE of here earthquakes near El Dorado County

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

Aftershocks so far

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

  1. 2.0 8km SSW of Chilcoot-Vinton, CA
  2. 1.6 11 km S of Reno, Nevada
  3. 2.1 8km N of Truckee, CA
  4. 1.8 15km NW of Truckee, CA
  5. 2.8 15km NW of Truckee, CA
  6. 2.2 3km NE of Dollar Point, CA
  7. 2.1 8km N of Truckee, CA
  8. 2.2 15km NW of Truckee, CA
  9. 2.5 16km W of Truckee, CA
  10. 1.6 2 km W of Sun Valley, Nevada
  11. 1.5 2 km SE of Golden Valley, Nevada
  12. 2.8 25km W of Sunnyside-Tahoe City, CA
  13. 1.7 7km NNW of Cold Springs, NV
  14. 2.0 11km NNE of Tahoe Vista, CA
  15. 1.5 6 km NNW of Incline Village, 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

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