QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

3 km SSE of Butte Meadows, California

· 0.6 km deep · released about 120 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Butte County 44 kmTehama County 60 kmPlumas County 61 kmYuba County 89 kmGlenn County 89 kmShasta County 90 kmSierra County 102 kmNevada County 107 kmLassen County 107 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
0.6 km below the surface
Felt
1 report · strongest reported intensity III
Nearest
Butte County, 44 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3252 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 120 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 92,000× the energy of this one
  3. Around the size people start to feel M 3.0 8.2× the energy of this one
  4. This earthquake M 2.4 about 120 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 40.0533, -121.5378. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Butte County, CA 44 km (27 mi) N of here earthquakes near Butte County
Tehama County, CA 60 km (37 mi) E of here earthquakes near Tehama County
Plumas County, CA 61 km (38 mi) W of here earthquakes near Plumas County
Yuba County, CA 89 km (55 mi) N of here earthquakes near Yuba County
Glenn County, CA 89 km (55 mi) NE of here earthquakes near Glenn County
Shasta County, CA 90 km (56 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. 1.5 9km W of Mineral, CA
  2. 1.8 16km WSW of Almanor, CA
  3. 1.8 4km NNW of Almanor, CA
  4. 1.9 10km N of Oroville, CA
  5. 1.7 5km NW of Almanor, CA
  6. 1.9 2km ESE of Twain, CA
  7. 1.9 6km NNE of Hamilton City, CA
  8. 1.6 1km SSW of Almanor, CA
  9. 1.6 3km NNE of Belden, CA
  10. 1.6 3km W of Canyondam, CA
  11. 2.4 13km ESE of Mineral, CA
  12. 2.1 2km NE of Canyondam, CA
  13. 1.6 6km W of Almanor, CA
  14. 2.0 4km SSE of Canyondam, CA
  15. 1.9 2km E 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.

On USGS

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