QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

21km SE of Burney, CA

· 9.5 km deep · released about 100 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Shasta County 46 kmLassen County 74 kmTehama County 92 kmPlumas County 101 kmModoc County 116 kmButte County 119 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
9.5 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Shasta County, 46 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2600 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 100 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 5.8 140,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 100,000× the energy of this one
  3. Around the size people start to feel M 3.0 9.1× the energy of this one
  4. This earthquake M 2.4 about 100 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 40.7360, -121.4993. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Shasta County, CA 46 km (29 mi) E of here earthquakes near Shasta County
Lassen County, CA 74 km (46 mi) W of here earthquakes near Lassen County
Tehama County, CA 92 km (57 mi) NE of here earthquakes near Tehama County
Plumas County, CA 101 km (62 mi) NW of here earthquakes near Plumas County
Modoc County, CA 116 km (72 mi) SW of here earthquakes near Modoc County
Butte County, CA 119 km (74 mi) N of here earthquakes near Butte 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 12km N of Mineral, CA
  2. 1.6 7km S of Mineral, CA
  3. 2.3 10km NNW of Viola, CA
  4. 1.6 7km SSW of Big Bend, CA
  5. 1.7 7km SSW of Big Bend, CA
  6. 1.8 11km NW of Shingletown, CA
  7. 1.6 7km SSW of Big Bend, CA
  8. 1.9 2km NNE of Fall River Mills, CA
  9. 1.6 12km ESE of Viola, CA
  10. 2.2 12km ESE of Viola, CA
  11. 1.6 22km NE of Viola, CA
  12. 2.0 14km NNE of Mineral, CA
  13. 1.7 16km NNW of Shingletown, CA
  14. 1.6 16km NNW of Shingletown, CA
  15. 1.8 11km NW of Viola, 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.