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 11:58 pm PST (07:58 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 21 km (13 mi) north-northwest of Redding, CA, at 7:13 pm PDT on 25 April 2019 (02:13 UTC), 20 km deep.

USGS: 11km ENE of French Gulch, CA

23 km (15 mi) NNW of Redding, CA · 125 km (78 mi) NNW of Chico, CA

7:13 pm PDT, Apr 25, 2019 · · 20 km deep · released about 24 lb of TNT

10 km30 km60 km120 km N Shasta County 40 kmTrinity County 51 kmTehama County 73 kmSiskiyou County 94 kmHumboldt 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
7:13 pm PDT on 25 April 2019 ()
Where
21 km (13 mi) north-northwest of Redding, CA · earthquakes near Redding
Magnitude
M 1.9 (md)
Depth
20 km below the surface
Felt
no reports yet
Nearest
Shasta County, 40 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2756 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 Redding, 21 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: Shasta Lake, Shasta, Lewiston, Bella Vista.

How big was it?

This earthquake released about 24 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 5.8 640,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 450,000× the energy of this one
  3. Around the size people start to feel M 3.0 40× the energy of this one
  4. This earthquake M 1.9 about 24 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 · 16 km SE 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 40.7448, -122.5205. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Shasta County, CA 40 km (25 mi) E earthquakes near Shasta County
Trinity County, CA 51 km (32 mi) WSW earthquakes near Trinity County
Tehama County, CA 73 km (45 mi) SSE earthquakes near Tehama County
Siskiyou County, CA 94 km (58 mi) N earthquakes near Siskiyou County
Humboldt County, CA 119 km (74 mi) W earthquakes near Humboldt County

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

Aftershocks so far

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

  1. 1.8 5km SE of Bella Vista, CA
  2. 1.7 9km NE of Shasta Lake, CA
  3. 1.9 5km WNW of Bella Vista, CA
  4. 1.7 9km NNE of Shasta Lake, CA
  5. 2.1 4km W of Bella Vista, CA
  6. 1.6 5km ESE of Redding, CA
  7. 1.7 4km SE of Redding, CA
  8. 1.6 1km N of Shasta, CA
  9. 1.7 9km NE of Shasta Lake, CA
  10. 2.4 26km WNW of Montgomery Creek, CA
  11. 2.0 27km N of Shasta Lake, CA
  12. 1.5 3km SSE of Bella Vista, CA
  13. 1.7 9km NE of Shasta Lake, CA
  14. 1.9 16km NNE of Bella Vista, CA
  15. 1.7 11km NE of Shasta Lake, 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.