QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

Earthquake near Burney, CA

No earthquake was likely felt in Burney in the 24 hours to 9:27 am PST (17:27 UTC). The last one was M 2.6, 11 km (7 mi) ESE, at 3:08 am PDT on 17 July 2026, estimated intensity II (weak) in town; 1 felt report to USGS. Every earthquake near Burney

This page: a magnitude 2.4 earthquake was recorded 12 km (8 mi) northeast of Burney, CA, at 11:10 am PDT on 8 September 2023 (18:10 UTC), 17 km deep. 6 people have reported feeling it to USGS.

USGS: 11 km WSW of Fall River Mills, CA

11:10 am PDT, Sep 8, 2023 · · 17 km deep · released about 110 lb of TNT

10 km30 km60 km120 km N Shasta County 46 kmLassen County 83 kmModoc County 99 kmSiskiyou County 108 kmTehama 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
11:10 am PDT on 8 September 2023 ()
Where
12 km (8 mi) northeast of Burney, CA · earthquakes near Burney
Magnitude
M 2.4 (md)
Depth
17 km below the surface
Felt
6 reports · strongest reported intensity II
Nearest
Shasta County, 46 km WSW
Nearest mapped fault
Rocky Ledge fault, 1 km from its surface trace — near is not the same as on
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1160 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 11 km (7 mi) from the epicentre. In Burney, 12 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.

How big was it?

This earthquake released about 110 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 95,000× the energy of this one
  3. Around the size people start to feel M 3.0 8.5× the energy of this one
  4. This earthquake M 2.4 about 110 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 5.0 on 2023-09-08 — about 8,200 times the energy of this one.

Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.

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 40.9577, -121.5565. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Shasta County, CA 46 km (29 mi) WSW earthquakes near Shasta County
Lassen County, CA 83 km (52 mi) ESE earthquakes near Lassen County
Modoc County, CA 99 km (62 mi) NE earthquakes near Modoc County
Siskiyou County, CA 108 km (67 mi) NW earthquakes near Siskiyou County
Tehama County, CA 109 km (68 mi) SSW earthquakes near Tehama County
Plumas County, CA 124 km (77 mi) SSE 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. 1.5 15 km S of McCloud, CA
  2. 1.5 16 km NNE of Shingletown, CA
  3. 2.0 8 km NE of Big Bend, CA
  4. 1.8 16 km NNE of Shingletown, CA
  5. 1.7 16 km NNE of Shingletown, CA
  6. 2.3 14 km N of Shingletown, CA
  7. 2.2 11 km WSW of Fall River Mills, CA
  8. 2.4 11 km WNW of Burney, CA
  9. 2.2 15 km N of Viola, CA
  10. 2.0 10 km WSW of Fall River Mills, CA
  11. 2.3 16 km N of Viola, CA
  12. 1.9 15 km N of Viola, CA
  13. 2.6 15 km N of Viola, CA
  14. 1.9 26 km SE of Fall River Mills, CA
  15. 1.9 25 km S of Nubieber, California

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.