QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

Earthquake near Magalia, CA

No earthquake was likely felt in Magalia in the 24 hours to 12:46 pm PST (20:46 UTC). The last one was M 5.6, 150 km (93 mi) WSW, at 8:10 am PDT on 24 June 2026, estimated intensity III (weak) in town; 5,311 felt reports to USGS. Every earthquake near Magalia

This page: a magnitude 2.1 earthquake was recorded 6 km (3 mi) west of Magalia, CA, at 3:05 pm PST on 11 November 2024 (23:05 UTC), 15 km deep.

USGS: 6 km W of Magalia, CA

16 km (10 mi) ENE of Chico, CA

3:05 pm PST, Nov 11, 2024 · · 15 km deep · released about 43 lb of TNT

10 km30 km60 km120 km N Butte County 16 kmTehama County 62 kmYuba County 65 kmGlenn County 69 kmPlumas County 73 kmSutter County 86 kmColusa County 87 kmNevada County 94 kmSierra County 99 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
3:05 pm PST on 11 November 2024 ()
Where
6 km (3 mi) west of Magalia, CA · earthquakes near Magalia
Magnitude
M 2.1 (md)
Depth
15 km below the surface
Felt
no reports yet
Nearest
Butte County, 16 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 723 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 9 km (6 mi) from the epicentre. In Magalia, 6 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Likely felt in: Paradise 6 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 43 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 350,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 250,000× the energy of this one
  3. Around the size people start to feel M 3.0 22× the energy of this one
  4. This earthquake M 2.1 about 43 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.

For this area

The largest earthquake within 50 km since 2016 was M 4.4 on 2024-04-05 — about 3,000 times the energy of this one.

Before 2016, the USGS record lists 3 earthquakes of M5 or more within 50 km:

  1. 5.7 The 1975 Oroville, California Earthquake · 43 km S of this epicentre
  2. 5.2 4 km E of Palermo, California · 43 km SSE of this epicentre
  3. 5.1 5 km ENE of Palermo, California · 42 km SSE of this epicentre

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 39.8070, -121.6425. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Butte County, CA 16 km (10 mi) SSE earthquakes near Butte County
Tehama County, CA 62 km (38 mi) NW earthquakes near Tehama County
Yuba County, CA 65 km (40 mi) SSE earthquakes near Yuba County
Glenn County, CA 69 km (43 mi) WSW earthquakes near Glenn County
Plumas County, CA 73 km (45 mi) ENE earthquakes near Plumas County
Sutter County, CA 86 km (53 mi) S earthquakes near Sutter County

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

Aftershocks so far

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

  1. 2.1 1 km SSE of Belden, CA
  2. 2.5 15 km ENE of Willows, CA
  3. 2.1 11 km WSW of Durham, CA
  4. 1.9 2 km SSE of Hamilton City, CA
  5. 2.5 17 km E of Willows, CA
  6. 1.9 17 km E of Willows, CA
  7. 2.3 16 km ESE of Willows, CA
  8. 2.2 5 km WNW of Magalia, CA
  9. 1.8 8 km NNE of Oroville East, CA
  10. 1.7 8 km NNE of Oroville East, CA
  11. 1.8 19 km ESE of Willows, CA
  12. 2.7 14 km E of Willows, CA
  13. 2.1 19 km NNW of Belden, CA
  14. 2.0 14 km WSW of Almanor, CA
  15. 2.1 15 km ESE 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.