QuakeIndex

Earthquake · automatic estimate, may change

M 1.6md

13 km NNE of Shingletown, CA

· 2.3 km deep · released about 6.4 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Shasta County 25 kmTehama County 63 kmLassen County 103 kmButte County 106 kmTrinity County 108 kmPlumas 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 1.6 (md)
Depth
2.3 km below the surface
Felt
no reports yet
Nearest
Shasta County, 25 km NW
Status
Automatic — a machine’s first estimate, which may change

USGS · last changed by USGS · we first saw it 344 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 6.4 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 2,400,000× 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 1.6 about 6.4 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 40.6033, -121.8348. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Shasta County, CA 25 km (15 mi) SE of here earthquakes near Shasta County
Tehama County, CA 63 km (39 mi) NNE of here earthquakes near Tehama County
Lassen County, CA 103 km (64 mi) W of here earthquakes near Lassen County
Butte County, CA 106 km (66 mi) N of here earthquakes near Butte County
Trinity County, CA 108 km (67 mi) E of here earthquakes near Trinity County
Plumas County, CA 109 km (68 mi) NW of here earthquakes near Plumas 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. 2.3 26 km NE of Viola, CA
  2. 2.2 27 km NE of Viola, CA
  3. 1.9 2 km NNE of Palo Cedro, CA
  4. 2.1 1 km ESE of Palo Cedro, CA
  5. 1.9 2 km ENE of Palo Cedro, CA
  6. 2.5 26 km NE of Viola, CA
  7. 3.4 26 km NE of Viola, CA
  8. 1.9 1 km ENE of Palo Cedro, CA
  9. 1.9 3 km S of Palo Cedro, CA
  10. 1.6 10 km NNE of Mineral, CA
  11. 1.9 10 km SW of Manton, CA
  12. 1.6 13 km NE of Mineral, CA
  13. 1.6 3 km NE of Mineral, CA
  14. 1.8 14 km NNW of Viola, CA
  15. 2.0 4 km NNW of Millville, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 5.0 on 2023-09-08 — it released about 140,000 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.