QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

10km SW of Shingletown, CA

· 14 km deep · released about 220 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Shasta County 36 kmTehama County 40 kmButte County 92 kmTrinity County 98 kmGlenn County 99 kmPlumas County 110 kmLassen County 120 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
14 km below the surface
Felt
4 reports · strongest reported intensity IV
Nearest
Shasta County, 36 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2721 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 4 people have 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 68,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 48,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.3× 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 40.4360, -121.9877. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Shasta County, CA 36 km (23 mi) S of here earthquakes near Shasta County
Tehama County, CA 40 km (25 mi) NNE of here earthquakes near Tehama County
Butte County, CA 92 km (57 mi) NNW of here earthquakes near Butte County
Trinity County, CA 98 km (61 mi) ESE of here earthquakes near Trinity County
Glenn County, CA 99 km (62 mi) NNE of here earthquakes near Glenn County
Plumas County, CA 110 km (69 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

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

  1. 1.7 12km NE of Shingletown, CA
  2. 1.6 3km SW of Shasta Lake, CA
  3. 1.8 20km NE of Red Bluff, CA
  4. 1.6 17km NNW of Shingletown, CA
  5. 2.0 20km NE of Red Bluff, CA
  6. 2.6 15km SE of Mineral, CA
  7. 1.8 20km NE of Red Bluff, CA
  8. 2.6 10km ENE of Red Bluff, CA
  9. 2.0 18km ENE of Red Bluff, CA
  10. 1.9 9km SSE of Mineral, CA
  11. 1.8 9km NNE of Shasta Lake, CA
  12. 1.8 18km NW of Viola, CA
  13. 1.8 17km NNE of Bella Vista, CA
  14. 1.6 18km NW of Viola, CA
  15. 1.8 18km 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.