Earthquake · reviewed by a seismologist
M 3.0ml
8km SSW of Kelseyville, CA
- When
- Magnitude
- M 3.0 (ml)
- Depth
- 5.0 km below the surface
- Felt
- 33 reports · strongest reported intensity IV
- Nearest
- Lake County, 25 km NNE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1990 days ago
This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 33 people have reported feeling it to USGS.
How big was it?
This earthquake released about 860 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.
- Northridge, California 1994 M 6.7 390,000× the energy of this one
- Mineral, Virginia 2011 M 5.8 18,000× the energy of this one
- Magna, Utah 2020 M 5.7 12,000× the energy of this one
- This earthquake M 3.0 about 860 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.
Where
Epicentre 38.9140, -122.8808. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Lake County, CA | 25 km (15 mi) | SSW of here | earthquakes near Lake County |
| Sonoma County, CA | 43 km (27 mi) | N of here | earthquakes near Sonoma County |
| Colusa County, CA | 63 km (39 mi) | WSW of here | earthquakes near Colusa County |
| Napa County, CA | 66 km (41 mi) | NW of here | earthquakes near Napa County |
| Mendocino County, CA | 75 km (47 mi) | SE of here | earthquakes near Mendocino County |
| Glenn County, CA | 87 km (54 mi) | SSW of here | earthquakes near Glenn County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
59 earthquakes have been recorded within 50 km since this one.
- 2.2 8km WNW of Cobb, CA
- 1.7 8km NE of Windsor, CA
- 1.6 8km NW of The Geysers, CA
- 1.6 2km N of The Geysers, CA
- 1.7 1km NW of The Geysers, CA
- 1.5 4km W of Cobb, CA
- 1.8 6km WNW of Cobb, CA
- 1.5 5km E of Clearlake Oaks, CA
- 1.6 8km WNW of The Geysers, CA
- 2.2 10km ESE of Hidden Valley Lake, CA
- 2.1 5km WNW of Cobb, CA
- 1.7 9km WNW of The Geysers, CA
- 1.9 5km NW of The Geysers, CA
- 1.7 8km NW of The Geysers, CA
- 1.5 8km SSW of Kelseyville, 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 1,500 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.