QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7md

13km NNE of Shingletown, CA

· 6.8 km deep · released about 9.3 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Shasta County 26 kmTehama County 63 kmLassen County 102 kmButte County 105 kmPlumas County 108 kmTrinity County 109 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 1.7 (md)
Depth
6.8 km below the surface
Felt
no reports yet
Nearest
Shasta County, 26 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1578 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 9.3 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,600,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,100,000× the energy of this one
  3. Around the size people start to feel M 3.0 100× the energy of this one
  4. This earthquake M 1.7 about 9.3 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 40.5938, -121.8197. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Shasta County, CA 26 km (16 mi) SE of here earthquakes near Shasta County
Tehama County, CA 63 km (39 mi) NE of here earthquakes near Tehama County
Lassen County, CA 102 km (63 mi) W of here earthquakes near Lassen County
Butte County, CA 105 km (65 mi) N of here earthquakes near Butte County
Plumas County, CA 108 km (67 mi) NW of here earthquakes near Plumas County
Trinity County, CA 109 km (68 mi) E of here earthquakes near Trinity County

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

Aftershocks so far

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

  1. 2.0 17km NW of Chester, CA
  2. 1.7 18km NW of Chester, CA
  3. 1.8 5km WNW of Palo Cedro, CA
  4. 1.9 16km NW of Chester, CA
  5. 1.9 16km NW of Chester, CA
  6. 1.9 17km NW of Chester, CA
  7. 1.6 4km ESE of Bella Vista, CA
  8. 1.9 5km SW of Big Bend, CA
  9. 2.8 6km SE of Viola, CA
  10. 1.6 1km NNE of Bella Vista, CA
  11. 1.7 2km NW of Bella Vista, CA
  12. 2.1 12km N of Mineral, CA
  13. 1.5 12km ESE of Viola, CA
  14. 2.5 11km N of Mineral, CA
  15. 1.6 14km NNW of Chester, 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.