QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5md

5km WSW of Manton, CA

· 15 km deep · released about 6.2 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Tehama County 41 kmShasta County 41 kmButte County 86 kmGlenn County 98 kmPlumas County 104 kmTrinity County 105 kmLassen County 115 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 1.5 (md)
Depth
15 km below the surface
Felt
no reports yet
Nearest
Tehama County, 41 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2202 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 6.2 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,700,000× the energy of this one
  3. Around the size people start to feel M 3.0 150× the energy of this one
  4. This earthquake M 1.5 about 6.2 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 40.4037, -121.9202. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Tehama County, CA 41 km (25 mi) NE of here earthquakes near Tehama County
Shasta County, CA 41 km (25 mi) SSE of here earthquakes near Shasta County
Butte County, CA 86 km (54 mi) NNW of here earthquakes near Butte County
Glenn County, CA 98 km (61 mi) NNE of here earthquakes near Glenn County
Plumas County, CA 104 km (64 mi) WNW of here earthquakes near Plumas County
Trinity County, CA 105 km (65 mi) ESE of here earthquakes near Trinity County

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

Aftershocks so far

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

  1. 1.7 10km NE of Shasta Lake, CA
  2. 2.2 19km WSW of Manton, CA
  3. 2.0 10km WNW of Viola, CA
  4. 1.8 9km ESE of Millville, CA
  5. 1.8 14km NNW of Viola, CA
  6. 1.9 21km SE of Anderson, CA
  7. 2.3 9km ENE of Viola, CA
  8. 2.0 2km ENE of Montgomery Creek, CA
  9. 1.7 30km NNW of Forest Ranch, CA
  10. 2.2 14km NNE of Mineral, CA
  11. 1.8 14km NNE of Mineral, CA
  12. 1.6 6km WNW of Palo Cedro, CA
  13. 1.5 12km W of Shingletown, CA
  14. 3.0 13km W of Shingletown, CA
  15. 1.5 16km NNW 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.