QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

5km NNE of Caribou, CA

· 2.3 km deep · released about 6.6 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Plumas County 31 kmButte County 64 kmLassen County 79 kmSierra County 81 kmTehama County 92 kmYuba County 96 kmNevada County 97 kmShasta County 104 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 (md)
Depth
2.3 km below the surface
Felt
no reports yet
Nearest
Plumas County, 31 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2739 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 6.6 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 2,300,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,600,000× the energy of this one
  3. Around the size people start to feel M 3.0 140× the energy of this one
  4. This earthquake M 1.6 about 6.6 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 40.1235, -121.1453. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Plumas County, CA 31 km (19 mi) WNW of here earthquakes near Plumas County
Butte County, CA 64 km (40 mi) NE of here earthquakes near Butte County
Lassen County, CA 79 km (49 mi) SW of here earthquakes near Lassen County
Sierra County, CA 81 km (50 mi) NW of here earthquakes near Sierra County
Tehama County, CA 92 km (57 mi) E of here earthquakes near Tehama County
Yuba County, CA 96 km (60 mi) N of here earthquakes near Yuba County

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

Aftershocks so far

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

  1. 2.3 11km NE of Cromberg, CA
  2. 1.8 1km WNW of Little Grass Valley, CA
  3. 1.8 6km WSW of Belden, CA
  4. 2.6 15km SE of Mineral, CA
  5. 1.8 15km ENE of Mineral, CA
  6. 2.1 16km NW of Chester, CA
  7. 1.9 9km SSE of Mineral, CA
  8. 1.6 7km NNE of Mineral, CA
  9. 1.7 16km WSW of Almanor, CA
  10. 1.6 19km WNW of Belden, CA
  11. 1.5 13km NNE of Mineral, CA
  12. 1.6 18km WSW of Almanor, CA
  13. 2.0 12km SSE of Bucks Lake, CA
  14. 1.5 4km WSW of Hamilton Branch, CA
  15. 2.2 2km ENE of Belden, 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.

On USGS

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