QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

30 km WNW of Paskenta, California

· 5.0 km deep · released about 9 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Glenn County 58 kmTehama County 59 kmMendocino County 76 kmTrinity County 78 kmLake County 96 kmColusa County 104 kmShasta County 114 kmButte 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 1.6 (md)
Depth
5.0 km below the surface
Felt
no reports yet
Nearest
Glenn County, 58 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3287 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 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 9 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 39.9645, -122.8877. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Glenn County, CA 58 km (36 mi) NW of here earthquakes near Glenn County
Tehama County, CA 59 km (36 mi) WSW of here earthquakes near Tehama County
Mendocino County, CA 76 km (47 mi) NE of here earthquakes near Mendocino County
Trinity County, CA 78 km (49 mi) SSE of here earthquakes near Trinity County
Lake County, CA 96 km (60 mi) N of here earthquakes near Lake County
Colusa County, CA 104 km (64 mi) NNW of here earthquakes near Colusa County

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

Aftershocks so far

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

  1. 1.6 24km NNW of Lake Pillsbury, CA
  2. 1.6 32km NNW of Alder Springs, CA
  3. 2.0 37km WNW of Rancho Tehama Reserve, CA
  4. 1.6 19km NNW of Alder Springs, CA
  5. 1.6 39km NE of Covelo, CA
  6. 1.7 24km NW of Alder Springs, CA
  7. 1.6 25km NE of Covelo, CA
  8. 1.6 16km NNW of Covelo, CA
  9. 1.5 34km WNW of Rancho Tehama Reserve, CA
  10. 1.9 37km W of Rancho Tehama Reserve, CA
  11. 1.7 38km NNW of Alder Springs, CA
  12. 1.9 28km NW of Alder Springs, CA
  13. 2.4 41km NE of Covelo, CA
  14. 1.9 32km NNW of Alder Springs, CA
  15. 1.6 32km NNW of Alder Springs, 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.