QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5md

Earthquake near Redding, CA

No earthquake was likely felt in Redding in the 24 hours to 9:04 am PST (17:04 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 1.5 earthquake was recorded 35 km (22 mi) northeast of Redding, CA, at 7:31 pm PDT on 16 March 2022 (02:31 UTC), 10 km deep.

USGS: 12km W of Round Mountain, CA

35 km (22 mi) NE of Redding, CA · 118 km (73 mi) N of Chico, CA

7:31 pm PDT, Mar 16, 2022 · · 10 km deep · released about 5.7 lb of TNT

10 km30 km60 km120 km N Shasta County 5 kmTehama County 76 kmTrinity County 89 kmSiskiyou County 96 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
7:31 pm PDT on 16 March 2022 ()
Where
35 km (22 mi) northeast of Redding, CA · earthquakes near Redding
Magnitude
M 1.5 (md)
Depth
10 km below the surface
Felt
no reports yet
Nearest
Shasta County, 5 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1701 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 2 km (1 mi) from the epicentre. In Redding, 35 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: Bella Vista, Shasta Lake, Palo Cedro.

How big was it?

This earthquake released about 5.7 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,600,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,900,000× the energy of this one
  3. Around the size people start to feel M 3.0 170× the energy of this one
  4. This earthquake M 1.5 about 5.7 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:

  1. 5.1 7km NW of Redding, CA · 34 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 40.7977, -122.0812. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Shasta County, CA 5 km (3 mi) SE earthquakes near Shasta County
Tehama County, CA 76 km (47 mi) S earthquakes near Tehama County
Trinity County, CA 89 km (55 mi) W earthquakes near Trinity County
Siskiyou County, CA 96 km (59 mi) NNW earthquakes near Siskiyou County
Plumas County, CA 139 km (86 mi) SE earthquakes near Plumas County
Modoc County, CA 144 km (90 mi) NE earthquakes near Modoc County

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

Aftershocks so far

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

  1. 1.7 11km NW of Shasta Lake, CA
  2. 1.6 2km N of Bella Vista, CA
  3. 1.6 18km NNE of Bella Vista, CA
  4. 2.2 18km NNE of Bella Vista, CA
  5. 1.8 5km NNE of Shasta, CA
  6. 1.7 4km N of Viola, CA
  7. 1.8 18km NW of Viola, CA
  8. 1.6 8km NNW of Bella Vista, CA
  9. 1.9 16km ESE of McCloud, CA
  10. 1.6 9km NE of Shasta Lake, CA
  11. 1.9 10km NW of Burney, CA
  12. 1.5 10km NW of Burney, CA
  13. 1.7 11km SE of Millville, CA
  14. 1.8 22km N of Big Bend, CA
  15. 1.8 7km NNW of Bella Vista, 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.