Earthquake · reviewed by a seismologist
M 3.2mw
13km W of Lakeport, CA
- When
- Magnitude
- M 3.2 (mw)
- Depth
- 4.2 km below the surface
- Felt
- 84 reports · strongest reported intensity III
- Measured shaking
- intensity V (ShakeMap)
- Nearest
- Lake County, 29 km ENE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2337 days ago
This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 84 people have reported feeling it to USGS.
How big was it?
This earthquake released about 1,700 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.2 would have released about 32 times as much.
- Northridge, California 1994 M 6.7 200,000× the energy of this one
- Mineral, Virginia 2011 M 5.8 9,100× the energy of this one
- Magna, Utah 2020 M 5.7 6,500× the energy of this one
- This earthquake M 3.2 about 1,700 lb of TNT
- Around the size people start to feel M 3.0 this one released 1.7× more
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.
Where
Epicentre 39.0338, -123.0653. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Lake County, CA | 29 km (18 mi) | WSW of here | earthquakes near Lake County |
| Mendocino County, CA | 55 km (34 mi) | SE of here | earthquakes near Mendocino County |
| Sonoma County, CA | 58 km (36 mi) | NNW of here | earthquakes near Sonoma County |
| Colusa County, CA | 73 km (45 mi) | WSW of here | earthquakes near Colusa County |
| Glenn County, CA | 85 km (53 mi) | SW of here | earthquakes near Glenn County |
| Napa County, CA | 87 km (54 mi) | NW of here | earthquakes near Napa County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
60 earthquakes have been recorded within 50 km since this one.
- 1.8 13km WNW of Lake Pillsbury, CA
- 1.7 6km NNW of The Geysers, CA
- 1.8 13km WNW of Lake Pillsbury, CA
- 1.6 2km NE of The Geysers, CA
- 1.7 5km NW of The Geysers, CA
- 1.5 6km NW of The Geysers, CA
- 1.8 10km NNW of Redwood Valley, CA
- 2.5 11km SW of Lake Pillsbury, CA
- 1.5 7km SW of The Geysers, CA
- 1.5 11km N of Redwood Valley, CA
- 1.6 10km WNW of The Geysers, CA
- 1.7 2km E of The Geysers, CA
- 2.0 7km NW of The Geysers, CA
- 1.5 4km NW of The Geysers, CA
- 1.7 4km SW of Anderson Springs, 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.
For this area
The largest earthquake within 50 km in our catalogue was M 5.1 on 2016-08-10 — it released about 790 times the energy of this one.
From the QuakeIndex catalogue, built from the USGS FDSN event service.
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.