QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

Earthquake near Bella Vista, CA

No earthquake was likely felt in Bella Vista in the 24 hours to 4:13 am PST (12:13 UTC). The last one was M 4.4, 124 km (77 mi) WSW, at 3:21 pm PDT on 5 August 2026, estimated intensity II (weak) in town; 122 felt reports to USGS. Every earthquake near Bella Vista

This page: a magnitude 1.8 earthquake was recorded 7 km (4 mi) north-northwest of Bella Vista, CA, at 2:26 pm PDT on 9 August 2022 (21:26 UTC), 20 km deep.

USGS: 7km NNW of Bella Vista, CA

16 km (10 mi) NNE of Redding, CA · 111 km (69 mi) NNW of Chico, CA

2:26 pm PDT, Aug 9, 2022 · · 20 km deep · released about 15 lb of TNT

10 km30 km60 km120 km N Shasta County 21 kmTehama County 63 kmTrinity County 71 kmSiskiyou County 102 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
2:26 pm PDT on 9 August 2022 ()
Where
7 km (4 mi) north-northwest of Bella Vista, CA · earthquakes near Bella Vista
Magnitude
M 1.8 (md)
Depth
20 km below the surface
Felt
no reports yet
Nearest
Shasta County, 21 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1555 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 Bella Vista, 7 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, Palo Cedro, Redding, Shasta, Anderson.

How big was it?

This earthquake released about 15 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 1,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 710,000× the energy of this one
  3. Around the size people start to feel M 3.0 63× the energy of this one
  4. This earthquake M 1.8 about 15 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 · 14 km WSW 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 40.6948, -122.2722. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Shasta County, CA 21 km (13 mi) ENE earthquakes near Shasta County
Tehama County, CA 63 km (39 mi) S earthquakes near Tehama County
Trinity County, CA 71 km (44 mi) W earthquakes near Trinity County
Siskiyou County, CA 102 km (63 mi) NNW earthquakes near Siskiyou County
Butte County, CA 128 km (79 mi) SSE earthquakes near Butte County

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

Aftershocks so far

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

  1. 1.5 9km NE of Shasta Lake, CA
  2. 1.7 10km W of Big Bend, CA
  3. 2.5 17km SSE of Dunsmuir, CA
  4. 2.0 11km NW of Shasta Lake, CA
  5. 1.6 24km WSW of Big Bend, CA
  6. 1.8 5km NNE of Montgomery Creek, CA
  7. 1.5 3km NE of Shasta Lake, CA
  8. 1.8 9km NE of Shasta Lake, CA
  9. 1.8 18km SSE of Round Mountain, CA
  10. 2.1 13km S of Dunsmuir, CA
  11. 2.2 12km NNE of Bella Vista, CA
  12. 2.1 8km ENE of Montgomery Creek, CA
  13. 1.9 8km ENE of Shasta Lake, CA
  14. 1.8 13km NNE of Bella Vista, CA
  15. 2.1 12km NNE 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.