Earthquake · reviewed by a seismologist
M 2.9md
Earthquake near Weaverville, CA
No earthquake was likely felt in Weaverville in the 24 hours to 5:14 am PST (13:14 UTC). The last one was M 3.7, 65 km (40 mi) WSW, at 2:44 pm PDT on 7 September 2026, estimated intensity II (weak) in town; 15 felt reports to USGS. Every earthquake near Weaverville
This page: a magnitude 2.9 earthquake was recorded 30 km (19 mi) west-northwest of Weaverville, CA, at 3:58 pm PDT on 29 May 2022 (22:58 UTC), 29 km deep. 1 person has reported feeling it to USGS.
USGS: 30km WNW of Weaverville, CA
- When
- 3:58 pm PDT on 29 May 2022 ()
- Where
- 30 km (19 mi) west-northwest of Weaverville, CA · earthquakes near Weaverville
- Magnitude
- M 2.9 (md)
- Depth
- 29 km below the surface
- Felt
- 1 report · strongest reported intensity II
- Nearest
- Trinity County, 24 km SE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1560 days ago
Earthquake alerts for Weaverville, CA
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Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.
At this magnitude and depth, people at rest would likely notice it out to about 8 km (5 mi) from the epicentre. In Weaverville, 30 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.
How big was it?
This earthquake released about 570 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 27,000× the energy of this one
- Magna, Utah 2020 M 5.7 19,000× the energy of this one
- Around the size people start to feel M 3.0 1.7× the energy of this one
- This earthquake M 2.9 about 570 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
The largest earthquake within 50 km since 2016 was M 4.5 on 2016-08-28 — about 290 times the energy of this one.
Before 2016, the USGS record lists 2 earthquakes of M5 or more within 50 km:
- 5.6 15 km SW of Burnt Ranch, California · 31 km WSW of this epicentre
- 5.4 3 km NNW of Burnt Ranch, California · 18 km W 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 40.8240, -123.2800. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Trinity County, CA | 24 km (15 mi) | SE | earthquakes near Trinity County |
| Humboldt County, CA | 56 km (35 mi) | WSW | earthquakes near Humboldt County |
| Shasta County, CA | 104 km (65 mi) | E | earthquakes near Shasta County |
| Siskiyou County, CA | 105 km (66 mi) | NE | earthquakes near Siskiyou County |
| Tehama County, CA | 118 km (73 mi) | SE | earthquakes near Tehama County |
| Del Norte County, CA | 118 km (74 mi) | NNW | earthquakes near Del Norte 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.
- 1.7 30 km W of Hayfork, CA
- 2.7 33 km ENE of Willow Creek, CA
- 3.2 35 km S of Willow Creek, CA
- 2.1 14 km N of Hayfork, CA
- 1.6 31 km W of Hayfork, CA
- 2.4 33 km W of Hayfork, CA
- 1.9 17 km SE of Willow Creek, CA
- 3.2 28 km S of Willow Creek, CA
- 2.2 32 km ENE of Willow Creek, CA
- 2.1 30 km WNW of Hayfork, CA
- 2.3 17 km NE of Willow Creek, CA
- 2.1 18 km WNW of Willow Creek, CA
- 2.4 14 km SE of Weitchpec, CA
- 1.8 33 km WSW of Hayfork, CA
- 2.0 13 km SSE of Willow Creek, 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
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.