QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2md

Earthquake near Redding, CA

No earthquake was likely felt in Redding in the 24 hours to 2:44 am PST (10:44 UTC). The last one was M 2.3, 5 km (3 mi) SW, at 4:06 pm PDT on 4 October 2026, estimated intensity II (weak) in town. Every earthquake near Redding

This page: a magnitude 2.2 earthquake was recorded 42 km (26 mi) east-southeast of Redding, CA, at 3:26 pm PDT on 26 August 2025 (22:26 UTC), 8.2 km deep.

USGS: 9 km WSW of Manton, CA

72 km (45 mi) N of Chico, CA · 39 km (24 mi) ESE of Redding, CA

3:26 pm PDT, Aug 26, 2025 · · 8.2 km deep · released about 62 lb of TNT

10 km30 km60 km120 km N Tehama County 38 kmShasta County 41 kmButte County 87 kmGlenn County 96 kmTrinity County 101 kmPlumas County 107 kmLassen County 119 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
3:26 pm PDT on 26 August 2025 ()
Where
42 km (26 mi) east-southeast of Redding, CA · earthquakes near Redding
Magnitude
M 2.2 (md)
Depth
8.2 km below the surface
Felt
no reports yet
Nearest
Tehama County, 38 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 442 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 17 km (11 mi) from the epicentre. In Redding, 42 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: Shingletown 12 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 62 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 240,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 170,000× the energy of this one
  3. Around the size people start to feel M 3.0 15× the energy of this one
  4. This earthquake M 2.2 about 62 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 2 earthquakes of M5 or more within 50 km:

  1. 5.5 15 km NE of Mineral, California · 42 km E of this epicentre
  2. 5.1 7km NW of Redding, CA · 46 km NW 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 40.3960, -121.9635. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Tehama County, CA 38 km (23 mi) SW earthquakes near Tehama County
Shasta County, CA 41 km (26 mi) N earthquakes near Shasta County
Butte County, CA 87 km (54 mi) SSE earthquakes near Butte County
Glenn County, CA 96 km (60 mi) SSW earthquakes near Glenn County
Trinity County, CA 101 km (63 mi) WNW earthquakes near Trinity County
Plumas County, CA 107 km (66 mi) ESE earthquakes near Plumas County

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

Aftershocks so far

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

  1. 1.9 1 km S of Shasta Lake, CA
  2. 1.8 9 km NE of Shasta Lake, CA
  3. 1.8 16 km S of Mineral, CA
  4. 2.1 13 km NNE of Mineral, CA
  5. 1.7 10 km SW of Shingletown, CA
  6. 2.1 19 km ESE of Anderson, CA
  7. 2.1 16 km SE of Anderson, CA
  8. 1.7 9 km WSW of Shingletown, CA
  9. 1.6 15 km WSW of Round Mountain, CA
  10. 2.4 18 km ESE of Anderson, CA
  11. 2.2 20 km SSE of Mineral, CA
  12. 2.8 6 km S of Palo Cedro, CA
  13. 1.7 9 km NE of Shasta Lake, CA
  14. 2.0 9 km WSW of Manton, CA
  15. 1.7 7 km ENE of Millville, 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.