QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

Earthquake near Palo Cedro, CA

No earthquake was likely felt in Palo Cedro in the 24 hours to 11:11 pm PST (07:11 UTC). The last one was M 2.7, 16 km (10 mi) SSW, at 7:24 pm PDT on 5 August 2026, estimated intensity II (weak) in town; 1 felt report to USGS. Every earthquake near Palo Cedro

This page: a magnitude 1.8 earthquake was recorded 5 km (3 mi) west-northwest of Palo Cedro, CA, at 7:04 pm PDT on 30 October 2022 (02:04 UTC), 17 km deep. 1 person has reported feeling it to USGS.

USGS: 5km WNW of Palo Cedro, CA

6 km (4 mi) E of Redding, CA · 100 km (62 mi) NNW of Chico, CA

7:04 pm PDT, Oct 30, 2022 · · 17 km deep · released about 14 lb of TNT

Every earthquake near Palo Cedro Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Shasta County 30 kmTehama County 51 kmTrinity County 69 kmGlenn County 109 kmSiskiyou County 114 kmButte County 118 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
7:04 pm PDT on 30 October 2022 ()
Where
5 km (3 mi) west-northwest of Palo Cedro, CA · earthquakes near Palo Cedro
Magnitude
M 1.8 (md)
Depth
17 km below the surface
Felt
1 report · strongest reported intensity I
Nearest
Shasta County, 30 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1471 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth it was probably too small to be felt, even directly above it. In Palo Cedro, 5 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: Redding, Bella Vista, Shasta Lake, Anderson, Shasta.

How big was it?

This earthquake released about 14 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 790,000× the energy of this one
  3. Around the size people start to feel M 3.0 70× the energy of this one
  4. This earthquake M 1.8 about 14 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 · 11 km WNW 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 40.5780, -122.3003. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Shasta County, CA 30 km (18 mi) NE earthquakes near Shasta County
Tehama County, CA 51 km (31 mi) S earthquakes near Tehama County
Trinity County, CA 69 km (43 mi) W earthquakes near Trinity County
Glenn County, CA 109 km (68 mi) S earthquakes near Glenn County
Siskiyou County, CA 114 km (71 mi) N earthquakes near Siskiyou County
Butte County, CA 118 km (73 mi) SSE earthquakes near Butte County

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

Aftershocks so far

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

  1. 2.1 17 km NNE of Bella Vista, CA
  2. 1.6 9 km NNW of Montgomery Creek, CA
  3. 1.8 19 km SW of Shasta, CA
  4. 2.1 19 km SW of Shasta, CA
  5. 1.6 8 km N of Montgomery Creek, CA
  6. 2.0 9 km ENE of French Gulch, CA
  7. 2.0 10 km ENE of French Gulch, CA
  8. 1.5 9 km NE of Shasta Lake, CA
  9. 2.6 15 km SE of Anderson, CA
  10. 1.9 15 km SSE of Round Mountain, CA
  11. 1.6 3 km SE of Bella Vista, CA
  12. 1.7 9 km NE of Shasta Lake, CA
  13. 1.5 13 km WSW of Shingletown, CA
  14. 2.4 10 km NE of Shasta Lake, CA
  15. 1.6 8km 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.