QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

Earthquake near Burney, CA

No earthquake was likely felt in Burney in the 24 hours to 4:08 am PST (12:08 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 2.3 earthquake was recorded 40 km (25 mi) east of Burney, CA, at 10:59 pm PST on 27 February 2022 (06:59 UTC), 16 km deep.

USGS: 26km SE of Fall River Mills, CA

10:59 pm PST, Feb 27, 2022 · · 16 km deep · released about 88 lb of TNT

10 km30 km60 km120 km N Lassen County 51 kmShasta County 73 kmModoc County 89 kmPlumas County 103 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
10:59 pm PST on 27 February 2022 ()
Where
40 km (25 mi) east of Burney, CA · earthquakes near Burney
Magnitude
M 2.3 (md)
Depth
16 km below the surface
Felt
no reports yet
Nearest
Lassen County, 51 km ESE
Nearest mapped fault
Pittville fault, 11 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 1718 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 12 km (7 mi) from the epicentre. In Burney, 40 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 88 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 170,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 120,000× the energy of this one
  3. Around the size people start to feel M 3.0 11× the energy of this one
  4. This earthquake M 2.3 about 88 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 40.8743, -121.1850. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Lassen County, CA 51 km (31 mi) ESE earthquakes near Lassen County
Shasta County, CA 73 km (46 mi) W earthquakes near Shasta County
Modoc County, CA 89 km (55 mi) NNE earthquakes near Modoc County
Plumas County, CA 103 km (64 mi) SSE earthquakes near Plumas County
Tehama County, CA 121 km (75 mi) SW earthquakes near Tehama County
Siskiyou County, CA 138 km (86 mi) NW earthquakes near Siskiyou County

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

Aftershocks so far

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

  1. 2.1 12 km WSW of Fall River Mills, CA
  2. 1.9 12 km WSW of Fall River Mills, CA
  3. 1.9 11 km WSW of Fall River Mills, CA
  4. 1.9 12 km WSW of Fall River Mills, CA
  5. 2.0 12 km WSW of Fall River Mills, CA
  6. 2.4 12 km NE of Burney, CA
  7. 2.2 11 km WSW of Fall River Mills, CA
  8. 2.7 11 km WSW of Fall River Mills, CA
  9. 2.8 12 km NE of Burney, CA
  10. 1.9 11 km WSW of Fall River Mills, CA
  11. 1.8 11 km WSW of Fall River Mills, CA
  12. 2.1 11 km WSW of Fall River Mills, CA
  13. 2.4 11 km NE of Burney, CA
  14. 1.9 11 km NE of Burney, CA
  15. 2.3 11 km WSW of Fall River Mills, 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.