QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

15km NNE of Shingletown, CA

· 15 km deep · released about 7.3 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Shasta County 23 kmTehama County 64 kmLassen County 104 kmTrinity County 107 kmButte County 108 kmPlumas County 111 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 1.6 (md)
Depth
15 km below the surface
Felt
no reports yet
Nearest
Shasta County, 23 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2372 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 7.3 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,500,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.3 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 40.6195, -121.8460. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Shasta County, CA 23 km (14 mi) SE of here earthquakes near Shasta County
Tehama County, CA 64 km (40 mi) NNE of here earthquakes near Tehama County
Lassen County, CA 104 km (65 mi) W of here earthquakes near Lassen County
Trinity County, CA 107 km (67 mi) E of here earthquakes near Trinity County
Butte County, CA 108 km (67 mi) N of here earthquakes near Butte County
Plumas County, CA 111 km (69 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

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

  1. 1.8 13km NNE of Shingletown, CA
  2. 2.3 15km E of Anderson, CA
  3. 1.6 19km NW of Viola, CA
  4. 1.9 2km SSW of Shasta Lake, CA
  5. 1.8 16km NNW of Shingletown, CA
  6. 1.5 7km ENE of Mineral, CA
  7. 1.7 12km SE of Mineral, CA
  8. 1.7 18km ESE of Anderson, CA
  9. 2.8 19km WSW of Manton, CA
  10. 1.6 13km ESE of Millville, CA
  11. 1.7 9km NE of Shasta Lake, CA
  12. 2.0 10km N of Viola, CA
  13. 2.0 21km NE of Red Bluff, CA
  14. 1.5 10km N of Viola, CA
  15. 1.8 12km NNE of Shingletown, 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.