QuakeIndex

Earthquake · reviewed by a seismologist

M 3.1ml

13 km NNE of Shingletown, CA

· 14 km deep · released about 1,200 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Shasta County 25 kmTehama County 63 kmLassen County 103 kmButte County 106 kmTrinity County 109 kmPlumas County 109 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 3.1 (ml)
Depth
14 km below the surface
Felt
10 reports · strongest reported intensity III
Nearest
Shasta County, 25 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1058 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 10 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1,200 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.1 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 290,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 13,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 9,100× the energy of this one
  4. This earthquake M 3.1 about 1,200 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.2× more

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 40.6023, -121.8292. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Shasta County, CA 25 km (16 mi) SE of here earthquakes near Shasta County
Tehama County, CA 63 km (39 mi) NNE of here earthquakes near Tehama County
Lassen County, CA 103 km (64 mi) W of here earthquakes near Lassen County
Butte County, CA 106 km (66 mi) N of here earthquakes near Butte County
Trinity County, CA 109 km (67 mi) E of here earthquakes near Trinity County
Plumas County, CA 109 km (68 mi) NW of here earthquakes near Plumas County

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

Aftershocks so far

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

  1. 1.8 9 km NE of Shasta Lake, CA
  2. 1.8 10 km WSW of Fall River Mills, CA
  3. 1.7 12 km SSW of Manton, CA
  4. 1.5 14 km NNE of Mineral, CA
  5. 1.9 4 km E of Redding, CA
  6. 2.3 13 km NNE of Red Bluff, CA
  7. 1.7 9 km NE of Shasta Lake, CA
  8. 2.2 4 km ESE of Round Mountain, CA
  9. 2.4 14 km NNE of Red Bluff, CA
  10. 1.5 4 km NE of Millville, CA
  11. 1.5 14 km NNE of Mineral, CA
  12. 1.5 0 km WSW of Shasta Lake, CA
  13. 1.9 12 km WSW of Fall River Mills, CA
  14. 1.8 7 km NE of Burney, CA
  15. 1.8 11 km WSW of Fall River Mills, 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.