Earthquake 21 km SE of Alderpoint, California
Wed, 05 Aug 2026 22:20:59 GMT
Time2 weeks ago
Location
40.0274, -123.4485
Depth
9.0 KM
Event Summary
A 3.9 magnitude earthquake struck on 21 km SE of Alderpoint, California, at Wed, 05 Aug 2026 22:20:59 GMT. Depth: 9km. Reviewed by USGS seismologists, this minor quake occurred at a magnitude type of mw.
Magnitude
3.9
mw
Source
USGS
Intensity
III
Agency Reports
3 Sources| Source | Magnitude | Depth | Time |
|---|---|---|---|
| NCPrimary | 4.5 | 7 km | 2 weeks ago |
| USGS | 4.5 | 5 km | 2 weeks ago0s |
| NEIC | 4.5 | 17 km | 2 weeks ago+1s |
Earthquake Details
AutomaticEvent IDusgs_ew1785968460
QualityS
Tsunami PotentialNo
Magnitude Typemw
Last Update2 weeks ago
Used Stations45
Nearest Places
Possibly felt by: 28.8K
- IIICovelo31.1 km1.3K people
- IIIRedway33.5 km1.2K people
- IIILaytonville37.8 km1.2K people
- IIHayfork62.8 km2.4K people
- 65.1 km3.2K people
- IIWillits69.2 km4.9K people
- 71.5 km7.3K people
- 76.6 km3.4K people
- 79.8 km1.2K people
- 87.3 km1.7K people
- 87.4 km12K people
- 89.2 km3.6K people
- 89.2 km1.5K people
- 92.2 km1.4K people
- 93.1 km1.2K people
- 98.5 km3.1K people
- 99.7 km15.9K people
- 99.9 km3.4K people
- 101.3 km3.1K people
- 102.3 km1.1K people
- 102.5 km4.7K people
- 102.6 km1.7K people
- 103.1 km1.8K people
- 103.7 km2.5K people
- 104.5 km14.1K people
- 104.5 km17.1K people
- 105.3 km27K people
- 105.4 km1.3K people
- 106.4 km1.1K people
- 106.9 km3.3K people
- 107.6 km17.8K people
- 108.3 km10.2K people
- 108.7 km7.5K people
- 109.1 km91.6K people
- 110.6 km1.1K people
- 111.3 km7.5K people
- INice112.9 km2.7K people
- 113.5 km1K people
- 114.3 km3.3K people
- 114.8 km2K people
- 116.1 km15.2K people
- 116.7 km4.3K people
- 116.7 km10.2K people
- 118.3 km3.1K people
- 118.6 km4.8K people
- 118.7 km1.3K people
- 121.0 km6.1K people
- 123.6 km2.8K people
Felt Reports0
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