QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

11 km NNE of Gerber, CA

· 27 km deep · released about 130 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Tehama County 10 kmGlenn County 65 kmShasta County 68 kmButte County 69 kmTrinity County 101 kmColusa County 108 kmPlumas County 111 kmYuba County 118 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
27 km below the surface
Felt
no reports yet
Nearest
Tehama County, 10 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 89 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 130 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 5.8 120,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 83,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.4× the energy of this one
  4. This earthquake M 2.4 about 130 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 40.1478, -122.1153. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Tehama County, CA 10 km (6 mi) ENE of here earthquakes near Tehama County
Glenn County, CA 65 km (41 mi) NNE of here earthquakes near Glenn County
Shasta County, CA 68 km (42 mi) S of here earthquakes near Shasta County
Butte County, CA 69 km (43 mi) NW of here earthquakes near Butte County
Trinity County, CA 101 km (63 mi) ESE of here earthquakes near Trinity County
Colusa County, CA 108 km (67 mi) N of here earthquakes near Colusa County

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

Aftershocks so far

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

  1. 2.7 22 km SSW of Manton, CA
  2. 1.7 9 km ENE of Shingletown, CA
  3. 2.7 5 km W of Hamilton City, CA
  4. 1.9 16 km NE of Red Bluff, CA
  5. 2.5 9 km E of Rancho Tehama Reserve, CA
  6. 2.7 4 km SSE of Anderson, CA
  7. 2.2 4 km WSW of Hamilton City, CA
  8. 1.8 13 km SW of Manton, CA
  9. 1.7 17 km NE of Red Bluff, CA
  10. 2.6 16 km NNE of Red Bluff, CA
  11. 2.0 13 km SW of Manton, CA
  12. 1.8 11 km SW of Manton, CA
  13. 1.8 12 km SW of Manton, CA
  14. 2.7 10 km SW of Manton, CA
  15. 1.6 12 km SW of Manton, 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.