QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7md

Earthquake near Red Bluff, CA

No earthquake was likely felt in Red Bluff in the 24 hours to 11:41 pm PST (07:41 UTC). The last one was M 4.0, 97 km (60 mi) SW, at 5:01 am PDT on 28 October 2026, estimated intensity II (weak) in town; 14 felt reports to USGS. Every earthquake near Red Bluff

This page: a magnitude 2.7 earthquake was recorded 12 km (7 mi) east of Red Bluff, CA, at 6:05 am PST on 23 January 2025 (14:05 UTC), 27 km deep. 2 people have reported feeling it to USGS.

USGS: 12 km E of Red Bluff, CA

54 km (34 mi) NNW of Chico, CA · 47 km (29 mi) SSE of Redding, CA

6:05 am PST, Jan 23, 2025 · · 27 km deep · released about 290 lb of TNT

10 km30 km60 km120 km N Tehama County 14 kmShasta County 63 kmGlenn County 71 kmButte County 73 kmTrinity County 99 kmPlumas County 111 kmColusa County 114 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
6:05 am PST on 23 January 2025 ()
Where
12 km (7 mi) east of Red Bluff, CA · earthquakes near Red Bluff
Magnitude
M 2.7 (md)
Depth
27 km below the surface
Felt
2 reports · strongest reported intensity III
Nearest
Tehama County, 14 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 582 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth it was probably too small to be felt, even directly above it. In Red Bluff, 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.

Earthquakes near other towns within 30 km: Gerber, Los Molinos.

How big was it?

This earthquake released about 290 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 51,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 36,000× the energy of this one
  3. Around the size people start to feel M 3.0 3.2× the energy of this one
  4. This earthquake M 2.7 about 290 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 40.1975, -122.1013. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Tehama County, CA 14 km (8 mi) SW earthquakes near Tehama County
Shasta County, CA 63 km (39 mi) N earthquakes near Shasta County
Glenn County, CA 71 km (44 mi) SSW earthquakes near Glenn County
Butte County, CA 73 km (45 mi) SE earthquakes near Butte County
Trinity County, CA 99 km (62 mi) WNW earthquakes near Trinity County
Plumas County, CA 111 km (69 mi) ESE earthquakes near Plumas County

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

Aftershocks so far

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

  1. 2.3 11 km WSW of Manton, CA
  2. 2.3 11 km WSW of Manton, CA
  3. 1.9 12 km WSW of Manton, CA
  4. 2.9 9 km WSW of Manton, CA
  5. 2.3 11 km WSW of Manton, CA
  6. 2.3 11 km WSW of Manton, CA
  7. 1.9 11 km WSW of Manton, CA
  8. 3.4 9 km W of Manton, CA
  9. 2.0 2 km NNE of Palo Cedro, CA
  10. 1.9 12 km S of Manton, CA
  11. 1.7 11 km WSW of Manton, CA
  12. 1.7 12 km WSW of Manton, CA
  13. 2.2 11 km WSW of Manton, CA
  14. 1.9 12 km WSW of Manton, CA
  15. 2.4 17 km WNW of Rancho Tehama Reserve, 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.