QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

14 km WNW of Belden, CA

· 7.3 km deep · released about 110 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Butte County 44 kmPlumas County 51 kmTehama County 70 kmYuba County 85 kmSierra County 92 kmShasta County 97 kmGlenn County 97 kmNevada County 99 kmLassen County 101 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
7.3 km below the surface
Felt
no reports yet
Nearest
Butte County, 44 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 250 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 110 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 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 95,000× the energy of this one
  3. Around the size people start to feel M 3.0 8.5× the energy of this one
  4. This earthquake M 2.4 about 110 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 40.0353, -121.4163. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Butte County, CA 44 km (27 mi) NNE of here earthquakes near Butte County
Plumas County, CA 51 km (31 mi) W of here earthquakes near Plumas County
Tehama County, CA 70 km (44 mi) E of here earthquakes near Tehama County
Yuba County, CA 85 km (53 mi) N of here earthquakes near Yuba County
Sierra County, CA 92 km (57 mi) NW of here earthquakes near Sierra County
Shasta County, CA 97 km (60 mi) SSE of here earthquakes near Shasta County

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

Aftershocks so far

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

  1. 1.7 17 km ENE of Mineral, CA
  2. 1.9 3 km WNW of Almanor, CA
  3. 1.6 2 km N of Almanor, CA
  4. 1.9 3 km N of Almanor, CA
  5. 1.9 12 km NNE of Chester, CA
  6. 2.3 4 km NNW of Belden, CA
  7. 1.6 4 km SSE of Chester, CA
  8. 1.9 3 km S of Canyondam, CA
  9. 1.8 12 km NNE of Mineral, CA
  10. 1.8 12 km NNE of Mineral, CA
  11. 2.3 18 km S of Mineral, CA
  12. 1.7 10 km NW of Chester, CA
  13. 2.4 10 km NW of Chester, CA
  14. 3.2 2 km ESE of Prattville, CA
  15. 2.1 2 km WSW of Canyondam, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 5.5 on 2023-05-11 — it released about 45,000 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.