QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

8km SSE of Mineral, CA

· 7.1 km deep · released about 6.6 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Tehama County 61 kmShasta County 68 kmPlumas County 69 kmButte County 69 kmLassen County 91 kmGlenn County 106 kmYuba County 114 kmSierra County 117 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
7.1 km below the surface
Felt
no reports yet
Nearest
Tehama County, 61 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1523 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 6.6 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 2,300,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,600,000× the energy of this one
  3. Around the size people start to feel M 3.0 140× the energy of this one
  4. This earthquake M 1.6 about 6.6 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 40.2858, -121.5392. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Tehama County, CA 61 km (38 mi) ENE of here earthquakes near Tehama County
Shasta County, CA 68 km (42 mi) SE of here earthquakes near Shasta County
Plumas County, CA 69 km (43 mi) WNW of here earthquakes near Plumas County
Butte County, CA 69 km (43 mi) N of here earthquakes near Butte County
Lassen County, CA 91 km (57 mi) WSW of here earthquakes near Lassen County
Glenn County, CA 106 km (66 mi) NE of here earthquakes near Glenn County

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

Aftershocks so far

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

  1. 1.8 14km NE of Mineral, CA
  2. 1.9 4km W of Mineral, CA
  3. 1.5 4 km W of Greenville, California
  4. 1.7 7 km S of Canyondam, California
  5. 2.6 13km S of Manton, CA
  6. 1.8 18km SSE of Round Mountain, CA
  7. 2.0 12km SSW of Manton, CA
  8. 1.7 13 km NNW of Belden, California
  9. 2.3 21km SSE of Burney, CA
  10. 1.9 17km S of Mineral, CA
  11. 1.9 14km WSW of Chester, CA
  12. 1.5 2 km WSW of Canyondam, California
  13. 1.9 12km S of Manton, CA
  14. 1.8 2 km SSE of Canyondam, California
  15. 1.6 3 km SSE of Canyondam, California

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.