Earthquake · reviewed by a seismologist
M 1.8md
Earthquake near Burney, CA
No earthquake was likely felt in Burney in the 24 hours to 6:28 am PST (14:28 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 1.8 earthquake was recorded 43 km (27 mi) east-southeast of Burney, CA, at 9:26 am PDT on 31 October 2021 (16:26 UTC), 14 km deep.
USGS: 36km SE of Fall River Mills, CA
- When
- 9:26 am PDT on 31 October 2021 ()
- Where
- 43 km (27 mi) east-southeast of Burney, CA · earthquakes near Burney
- Magnitude
- M 1.8 (md)
- Depth
- 14 km below the surface
- Felt
- no reports yet
- Nearest
- Lassen County, 48 km E
- Nearest mapped fault
- McArthur fault, 9 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 1838 days ago
Earthquake alerts for Burney, CA
Get a notification in this browser when USGS records an earthquake near Burney, CA. No account or email needed.
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 1 km (1 mi) from the epicentre. In Burney, 43 km away, the estimate is intensity I (not felt). 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 17 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 870,000× the energy of this one
- Magna, Utah 2020 M 5.7 620,000× the energy of this one
- Around the size people start to feel M 3.0 55× the energy of this one
- This earthquake M 1.8 about 17 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 lists one earthquake of M5 or more within 50 km:
- 5.5 15 km NE of Mineral, California · 40 km SW 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 40.7403, -121.1858. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Lassen County, CA | 48 km (30 mi) | E | earthquakes near Lassen County |
| Shasta County, CA | 72 km (45 mi) | W | earthquakes near Shasta County |
| Plumas County, CA | 89 km (55 mi) | SSE | earthquakes near Plumas County |
| Modoc County, CA | 103 km (64 mi) | NNE | earthquakes near Modoc County |
| Tehama County, CA | 112 km (69 mi) | SW | earthquakes near Tehama County |
| Butte County, CA | 125 km (77 mi) | SSW | earthquakes near Butte County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
56 earthquakes have been recorded within 50 km since this one.
- 1.8 4 km NNW of Hamilton Branch, CA
- 2.0 37km SE of Fall River Mills, CA
- 1.8 14km NE of Mineral, CA
- 2.4 47km NNW of Susanville, CA
- 2.3 21km SSE of Burney, CA
- 1.8 8km NW of Chester, CA
- 2.3 15km NW of Chester, CA
- 1.9 16km NW of Chester, CA
- 2.2 17km NW of Chester, CA
- 1.9 17km NW of Chester, CA
- 1.8 16km NW of Chester, CA
- 1.9 16km NW of Chester, CA
- 1.8 18km NW of Chester, CA
- 1.9 16km NW of Chester, CA
- 2.0 17km NW of Chester, 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.