QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

2 km S of Plumas Eureka, California

· 7.2 km deep · released about 7.6 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Sierra County 24 kmPlumas County 29 kmNevada County 54 kmPlacer County 79 kmYuba County 81 kmButte County 82 kmStorey County 104 kmCarson City 104 kmLassen County 105 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 1.6 (ml)
Depth
7.2 km below the surface
Felt
no reports yet
Nearest
Sierra County, 24 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2863 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 7.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.6 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 39.7713, -120.6540. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Sierra County, CA 24 km (15 mi) NNW of here earthquakes near Sierra County
Plumas County, CA 29 km (18 mi) SSE of here earthquakes near Plumas County
Nevada County, CA 54 km (33 mi) N of here earthquakes near Nevada County
Placer County, CA 79 km (49 mi) N of here earthquakes near Placer County
Yuba County, CA 81 km (51 mi) NE of here earthquakes near Yuba County
Butte County, CA 82 km (51 mi) E of here earthquakes near Butte 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. 2.4 20km SSW of Whitehawk, CA
  2. 1.8 2 km E of Cromberg, California
  3. 1.6 7 km NNE of Plumas Eureka, California
  4. 1.8 3km NE of Greenville, CA
  5. 1.7 6 km N of Greenhorn, California
  6. 1.5 13 km SSE of Sierraville, California
  7. 2.4 21km NNW of Truckee, CA
  8. 1.6 12 km SSE of Sierraville, California
  9. 2.3 6km NNE of Chilcoot-Vinton, CA
  10. 1.8 4km W of Taylorsville, CA
  11. 2.8 17km SSE of Whitehawk, CA
  12. 2.2 6km WSW of Valley Ranch, CA
  13. 2.2 5km SE of Taylorsville, CA
  14. 2.2 12km NNE of Little Grass Valley, CA
  15. 1.6 2 km WNW of Sattley, 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.

On USGS

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