Earthquake · reviewed by a seismologist
M 2.1md
Earthquake near Burney, CA
No earthquake was likely felt in Burney in the 24 hours to 3:36 am PST (11:36 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 2.1 earthquake was recorded 11 km (7 mi) north-northwest of Burney, CA, at 12:57 am PDT on 6 October 2021 (07:57 UTC), 9.6 km deep.
USGS: 10km NNW of Burney, CA
- When
- 12:57 am PDT on 6 October 2021 ()
- Where
- 11 km (7 mi) north-northwest of Burney, CA · earthquakes near Burney
- Magnitude
- M 2.1 (md)
- Depth
- 9.6 km below the surface
- Felt
- no reports yet
- Nearest
- Shasta County, 35 km SW
- Nearest mapped fault
- Rocky Ledge fault, 7 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 1863 days ago
Earthquake alerts for Burney, CA
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Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
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 15 km (9 mi) from the epicentre. In Burney, 11 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: Burney 11 km, intensity II. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 46 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.
- Mineral, Virginia 2011 M 5.8 330,000× the energy of this one
- Magna, Utah 2020 M 5.7 230,000× the energy of this one
- Around the size people start to feel M 3.0 21× the energy of this one
- This earthquake M 2.1 about 46 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
No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.
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 40.9618, -121.7290. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Shasta County, CA | 35 km (22 mi) | SW | earthquakes near Shasta County |
| Siskiyou County, CA | 97 km (60 mi) | NW | earthquakes near Siskiyou County |
| Lassen County, CA | 97 km (60 mi) | ESE | earthquakes near Lassen County |
| Tehama County, CA | 102 km (63 mi) | SSW | earthquakes near Tehama County |
| Modoc County, CA | 110 km (68 mi) | NE | earthquakes near Modoc County |
| Trinity County, CA | 122 km (76 mi) | WSW | earthquakes near Trinity County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
37 earthquakes have been recorded within 50 km since this one.
- 1.8 22km N of Big Bend, CA
- 2.3 16km N of Shingletown, CA
- 1.8 4km N of McCloud, CA
- 1.6 22km SE of Burney, CA
- 1.6 18km SE of Burney, CA
- 1.7 13km NNE of Shingletown, CA
- 1.8 4km NNE of Viola, CA
- 2.8 11km N of McArthur, CA
- 2.4 14km NNE of Shingletown, CA
- 1.6 9km NE of Shingletown, CA
- 1.9 8km N of Viola, CA
- 1.6 8km N of Viola, CA
- 1.8 16km W of Round Mountain, CA
- 1.5 12km W of Round Mountain, CA
- 2.1 14km E of Big Bend, 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
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.