QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

Earthquake near Redding, CA

No earthquake was likely felt in Redding in the 24 hours to 4:53 am PST (12:53 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 1.9 earthquake was recorded 45 km (28 mi) southeast of Redding, CA, at 3:59 pm PDT on 9 May 2026 (22:59 UTC), 11 km deep.

USGS: 10 km SW of Manton, CA

68 km (42 mi) N of Chico, CA · 42 km (26 mi) ESE of Redding, CA

3:59 pm PDT, May 9, 2026 · · 11 km deep · released about 22 lb of TNT

10 km30 km60 km120 km N Tehama County 35 kmShasta County 45 kmButte County 83 kmGlenn County 93 kmTrinity County 103 kmPlumas County 104 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
3:59 pm PDT on 9 May 2026 ()
Where
45 km (28 mi) southeast of Redding, CA · earthquakes near Redding
Magnitude
M 1.9 (md)
Depth
11 km below the surface
Felt
no reports yet
Nearest
Tehama County, 35 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 177 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 10 km (6 mi) from the epicentre. In Redding, 45 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.

Earthquakes near other towns within 30 km: Shingletown.

How big was it?

This earthquake released about 22 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 680,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 480,000× the energy of this one
  3. Around the size people start to feel M 3.0 43× the energy of this one
  4. This earthquake M 1.9 about 22 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 ENE of this epicentre
  2. 5.1 7km NW of Redding, CA · 49 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 40.3602, -121.9512. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Tehama County, CA 35 km (22 mi) SW earthquakes near Tehama County
Shasta County, CA 45 km (28 mi) N earthquakes near Shasta County
Butte County, CA 83 km (51 mi) SSE earthquakes near Butte County
Glenn County, CA 93 km (58 mi) SSW earthquakes near Glenn County
Trinity County, CA 103 km (64 mi) WNW earthquakes near Trinity County
Plumas County, CA 104 km (65 mi) ESE earthquakes near Plumas County

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

Aftershocks so far

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

  1. 2.1 13 km SE of Millville, CA
  2. 2.3 15 km SE of Anderson, CA
  3. 2.3 5 km WSW of Redding, CA
  4. 2.7 22 km SSW of Manton, CA
  5. 1.6 9 km ENE of Mineral, CA
  6. 1.7 9 km ENE of Shingletown, CA
  7. 1.9 4 km ESE of Bella Vista, CA
  8. 1.9 16 km NE of Red Bluff, CA
  9. 2.5 9 km E of Rancho Tehama Reserve, CA
  10. 2.7 4 km SSE of Anderson, CA
  11. 1.8 13 km SW of Manton, CA
  12. 1.7 17 km NE of Red Bluff, CA
  13. 2.6 16 km NNE of Red Bluff, CA
  14. 1.8 16 km NNE of Shingletown, CA
  15. 2.0 13 km SW of Manton, 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.