QuakeIndex

Earthquake · reviewed by a seismologist

M 3.1ml

14 km NNE of Maxwell, CA

· 27 km deep · released about 1,500 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Colusa County 26 kmGlenn County 32 kmSutter County 55 kmButte County 55 kmLake County 61 kmYuba County 70 kmTehama County 82 kmYolo County 82 kmNapa County 100 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 3.1 (ml)
Depth
27 km below the surface
Felt
7 reports · strongest reported intensity III
Nearest
Colusa County, 26 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 589 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 7 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1,500 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.1 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 220,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 9,800× the energy of this one
  3. Magna, Utah 2020 M 5.7 6,900× the energy of this one
  4. This earthquake M 3.1 about 1,500 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.6× more

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 39.3953, -122.1415. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Colusa County, CA 26 km (16 mi) NNE of here earthquakes near Colusa County
Glenn County, CA 32 km (20 mi) SE of here earthquakes near Glenn County
Sutter County, CA 55 km (34 mi) NW of here earthquakes near Sutter County
Butte County, CA 55 km (34 mi) WSW of here earthquakes near Butte County
Lake County, CA 61 km (38 mi) ENE of here earthquakes near Lake County
Yuba County, CA 70 km (43 mi) WNW of here earthquakes near Yuba County

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

Aftershocks so far

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

  1. 2.0 5 km E of Williams, CA
  2. 2.7 5 km W of Hamilton City, CA
  3. 1.9 7 km ESE of Williams, CA
  4. 2.5 15 km S of Hamilton City, CA
  5. 2.2 4 km WSW of Hamilton City, CA
  6. 2.0 17 km E of Willows, CA
  7. 1.9 19 km E of Willows, CA
  8. 1.9 8 km WSW of Arbuckle, CA
  9. 2.4 9 km S of Hamilton City, CA
  10. 3.1 9 km ENE of Colusa, CA
  11. 3.2 15 km E of Willows, CA
  12. 2.1 16 km ESE of Willows, CA
  13. 2.8 12 km SSE of Willows, CA
  14. 2.2 3 km SE of Hamilton City, CA
  15. 2.5 15 km ENE 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.