QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

9km SW of Shingletown, CA

· 9.5 km deep · released about 8.7 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Shasta County 36 kmTehama County 41 kmButte County 91 kmTrinity County 100 kmGlenn County 100 kmPlumas County 109 kmLassen County 118 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
9.5 km below the surface
Felt
no reports yet
Nearest
Shasta County, 36 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3090 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 8.7 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 1,700,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,200,000× the energy of this one
  3. Around the size people start to feel M 3.0 110× the energy of this one
  4. This earthquake M 1.6 about 8.7 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 40.4385, -121.9657. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Shasta County, CA 36 km (23 mi) S of here earthquakes near Shasta County
Tehama County, CA 41 km (26 mi) NNE of here earthquakes near Tehama County
Butte County, CA 91 km (57 mi) NNW of here earthquakes near Butte County
Trinity County, CA 100 km (62 mi) ESE of here earthquakes near Trinity County
Glenn County, CA 100 km (62 mi) NNE of here earthquakes near Glenn County
Plumas County, CA 109 km (68 mi) WNW of here earthquakes near Plumas County

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

Aftershocks so far

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

  1. 1.7 13km W of Manton, CA
  2. 2.0 8km ESE of Red Bluff, CA
  3. 1.7 8km NNE of Shasta Lake, CA
  4. 1.6 6km ESE of Bella Vista, CA
  5. 1.7 15km WSW of Shingletown, CA
  6. 1.6 3km NNE of Shasta, CA
  7. 1.7 11km W of Manton, CA
  8. 1.6 7km SSE of Mineral, CA
  9. 1.5 7km SSE of Mineral, CA
  10. 1.8 12km WNW of Mineral, CA
  11. 2.9 8km S of Mineral, CA
  12. 1.6 20km S of Mineral, CA
  13. 1.6 11km WSW of Shingletown, CA
  14. 1.7 12km WSW of Shingletown, CA
  15. 1.8 1km SW of Palo Cedro, 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.