QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

12km NE of Bella Vista, CA

· 6.9 km deep · released about 15 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Shasta County 10 kmTehama County 67 kmTrinity County 82 kmSiskiyou County 101 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 1.8 (md)
Depth
6.9 km below the surface
Felt
1 report · strongest reported intensity I
Nearest
Shasta County, 10 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1787 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 15 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 730,000× the energy of this one
  3. Around the size people start to feel M 3.0 65× the energy of this one
  4. This earthquake M 1.8 about 15 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 40.7287, -122.1515. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Shasta County, CA 10 km (6 mi) WSW of here earthquakes near Shasta County
Tehama County, CA 67 km (42 mi) N of here earthquakes near Tehama County
Trinity County, CA 82 km (51 mi) E of here earthquakes near Trinity County
Siskiyou County, CA 101 km (63 mi) SSE of here earthquakes near Siskiyou County
Butte County, CA 127 km (79 mi) NNW of here earthquakes near Butte County
Plumas County, CA 139 km (86 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

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

  1. 1.7 13km NNE of Shingletown, CA
  2. 1.6 8km NE of Shasta Lake, CA
  3. 1.7 4km SW of Millville, CA
  4. 1.8 4km NNE of Viola, CA
  5. 1.9 10km N of French Gulch, CA
  6. 2.7 9km N of French Gulch, CA
  7. 1.6 9km NE of Shasta Lake, CA
  8. 1.6 4km S of Bella Vista, CA
  9. 2.4 14km NNE of Shingletown, CA
  10. 1.7 11km W of Shingletown, CA
  11. 1.9 20km NE of Red Bluff, CA
  12. 1.6 8km NNW of Bella Vista, CA
  13. 2.3 14km SSE of Anderson, CA
  14. 1.6 9km NE of Shingletown, CA
  15. 1.9 13km SSE of Anderson, 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.