QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

8 km E of Orland, CA

· 34 km deep · released about 190 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Glenn County 31 kmTehama County 41 kmButte County 45 kmColusa County 66 kmYuba County 86 kmSutter County 88 kmLake County 91 kmShasta County 111 kmPlumas County 112 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 2.5 (md)
Depth
34 km below the surface
Felt
no reports yet
Nearest
Glenn County, 31 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 661 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 190 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 80,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 57,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.1× the energy of this one
  4. This earthquake M 2.5 about 190 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 39.7672, -122.1085. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Glenn County, CA 31 km (19 mi) NE of here earthquakes near Glenn County
Tehama County, CA 41 km (26 mi) SSE of here earthquakes near Tehama County
Butte County, CA 45 km (28 mi) WNW of here earthquakes near Butte County
Colusa County, CA 66 km (41 mi) N of here earthquakes near Colusa County
Yuba County, CA 86 km (53 mi) NW of here earthquakes near Yuba County
Sutter County, CA 88 km (55 mi) NNW of here earthquakes near Sutter County

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

Aftershocks so far

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

  1. 2.7 5 km W of Hamilton City, CA
  2. 2.5 9 km E of Rancho Tehama Reserve, CA
  3. 2.5 15 km S of Hamilton City, CA
  4. 2.2 4 km WSW of Hamilton City, CA
  5. 2.0 17 km E of Willows, CA
  6. 2.4 11 km NNE of Gerber, CA
  7. 2.2 21 km NE of Alder Springs, CA
  8. 1.9 19 km E of Willows, CA
  9. 2.7 4 km WSW of Red Bluff, CA
  10. 2.4 9 km S of Hamilton City, CA
  11. 1.9 5 km WSW of Concow, CA
  12. 3.2 15 km E of Willows, CA
  13. 2.1 16 km ESE of Willows, CA
  14. 2.3 13 km NNW of Chico, CA
  15. 2.8 12 km SSE of Willows, 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.