QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

17km SE of Anderson, CA

· 15 km deep · released about 220 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Tehama County 27 kmShasta County 45 kmGlenn County 87 kmButte County 89 kmTrinity County 89 kmPlumas 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 2.6 (md)
Depth
15 km below the surface
Felt
1 report · strongest reported intensity I
Nearest
Tehama County, 27 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2369 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 220 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 70,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 50,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.4× the energy of this one
  4. This earthquake M 2.6 about 220 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 40.3587, -122.1303. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Tehama County, CA 27 km (17 mi) NNE of here earthquakes near Tehama County
Shasta County, CA 45 km (28 mi) S of here earthquakes near Shasta County
Glenn County, CA 87 km (54 mi) NNE of here earthquakes near Glenn County
Butte County, CA 89 km (55 mi) NNW of here earthquakes near Butte County
Trinity County, CA 89 km (55 mi) ESE of here earthquakes near Trinity County
Plumas County, CA 118 km (73 mi) WNW of here earthquakes near Plumas County

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

Aftershocks so far

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

  1. 2.0 10km N of Viola, CA
  2. 2.1 10km N of Viola, CA
  3. 2.8 10km N of Viola, CA
  4. 2.0 10km N of Viola, CA
  5. 1.6 12km NE of Bella Vista, CA
  6. 1.7 9km NE of Shasta Lake, CA
  7. 2.0 20km SSW of Manton, CA
  8. 1.8 6km ENE of Shasta, CA
  9. 1.6 12km NE of Bella Vista, CA
  10. 1.6 5km NNE of Shasta Lake, CA
  11. 1.8 20km NE of Red Bluff, CA
  12. 2.7 18km NE of Red Bluff, CA
  13. 2.4 2km ENE of Gerber, CA
  14. 1.5 8km NE of Shasta Lake, CA
  15. 1.7 9km NNE of Los Molinos, 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.