QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

21km SSE of Mineral, CA

· 15 km deep · released about 130 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Butte County 57 kmPlumas County 60 kmTehama County 63 kmShasta County 80 kmLassen County 95 kmGlenn County 100 kmYuba County 101 kmSierra County 106 kmNevada 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 2.4 (md)
Depth
15 km below the surface
Felt
2 reports · strongest reported intensity III
Nearest
Butte County, 57 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1739 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 130 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 110,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 80,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.2× the energy of this one
  4. This earthquake M 2.4 about 130 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 40.1720, -121.4915. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Butte County, CA 57 km (36 mi) N of here earthquakes near Butte County
Plumas County, CA 60 km (37 mi) WNW of here earthquakes near Plumas County
Tehama County, CA 63 km (39 mi) E of here earthquakes near Tehama County
Shasta County, CA 80 km (50 mi) SE of here earthquakes near Shasta County
Lassen County, CA 95 km (59 mi) SW of here earthquakes near Lassen County
Glenn County, CA 100 km (62 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

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

  1. 1.9 17km S of Mineral, CA
  2. 2.1 4km SE of Meadow Valley, CA
  3. 2.1 10km WNW of Chester, CA
  4. 1.7 4km N of Viola, CA
  5. 1.9 14km NNE of Mineral, CA
  6. 1.6 2km ESE of Chester, CA
  7. 1.7 5km WNW of Hamilton Branch, CA
  8. 1.5 5km N of Almanor, CA
  9. 1.6 8km SSE of Mineral, CA
  10. 2.1 3km N of Canyondam, CA
  11. 1.5 5km E of Caribou, CA
  12. 2.0 2km E of Prattville, CA
  13. 1.8 4km NE of Prattville, CA
  14. 2.5 2km N of Prattville, CA
  15. 2.4 2km ENE of Prattville, 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.