Earthquake · reviewed by a seismologist
M 2.2md
8km E of Clearlake Oaks, CA
- When
- Magnitude
- M 2.2 (md)
- Depth
- -0.2 km below the surface
- Felt
- 1 report · strongest reported intensity II
- Nearest
- Lake County, 17 km WNW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2917 days ago
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.
How big was it?
This earthquake released about 58 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 260,000× the energy of this one
- Magna, Utah 2020 M 5.7 180,000× the energy of this one
- Around the size people start to feel M 3.0 16× the energy of this one
- This earthquake M 2.2 about 58 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 39.0295, -122.5820. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Lake County, CA | 17 km (10 mi) | ESE of here | earthquakes near Lake County |
| Colusa County, CA | 34 km (21 mi) | WSW of here | earthquakes near Colusa County |
| Napa County, CA | 62 km (39 mi) | NNW of here | earthquakes near Napa County |
| Sonoma County, CA | 64 km (39 mi) | NNE of here | earthquakes near Sonoma County |
| Glenn County, CA | 66 km (41 mi) | SSW of here | earthquakes near Glenn County |
| Yolo County, CA | 71 km (44 mi) | WNW of here | earthquakes near Yolo 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.
- 1.8 6km WNW of The Geysers, CA
- 1.6 12km ENE of Cloverdale, CA
- 1.6 7km WNW of The Geysers, CA
- 1.6 2km E of The Geysers, CA
- 1.7 4km W of Cobb, CA
- 1.9 16km SE of Hidden Valley Lake, CA
- 1.5 6km WNW of The Geysers, CA
- 1.9 4km NW of The Geysers, CA
- 1.5 7km NW of The Geysers, CA
- 1.7 2km ESE of The Geysers, CA
- 1.5 6km WNW of The Geysers, CA
- 1.5 15km SW of Lakeport, CA
- 1.5 1km NNE of The Geysers, CA
- 1.8 2km ESE of The Geysers, CA
- 1.6 6km W of Cobb, 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 22,000 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.