QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

11km WNW of Belden, CA

· -0.6 km deep · released about 22 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Butte County 46 kmPlumas County 47 kmTehama County 74 kmYuba County 86 kmSierra County 89 kmNevada County 97 kmLassen County 98 kmShasta County 98 kmGlenn 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 1.9 (md)
Depth
-0.6 km below the surface
Felt
no reports yet
Nearest
Butte County, 46 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3211 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 22 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 680,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 480,000× the energy of this one
  3. Around the size people start to feel M 3.0 43× the energy of this one
  4. This earthquake M 1.9 about 22 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 40.0403, -121.3692. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Butte County, CA 46 km (29 mi) NNE of here earthquakes near Butte County
Plumas County, CA 47 km (29 mi) W of here earthquakes near Plumas County
Tehama County, CA 74 km (46 mi) E of here earthquakes near Tehama County
Yuba County, CA 86 km (53 mi) N of here earthquakes near Yuba County
Sierra County, CA 89 km (55 mi) NW of here earthquakes near Sierra County
Nevada County, CA 97 km (60 mi) NNW of here earthquakes near Nevada County

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

Aftershocks so far

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

  1. 1.5 6 km SW of Canyondam, California
  2. 2.2 3km SE of Belden, CA
  3. 1.5 3 km SSW of Greenville, California
  4. 1.5 8km NNW of Chester, CA
  5. 2.9 3km NNE of Almanor, CA
  6. 2.3 4km NNE of Almanor, CA
  7. 3.0 19km W of Forest Ranch, CA
  8. 2.8 5km N of Chico, CA
  9. 1.9 13km NNE of Mineral, CA
  10. 2.2 16km W of Almanor, CA
  11. 2.2 10km WNW of Mineral, CA
  12. 1.7 10km WNW of Mineral, CA
  13. 2.0 2km NE of Canyondam, CA
  14. 1.7 2km NNE of Prattville, CA
  15. 1.5 9km W of Mineral, 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.