Earthquake · reviewed by a seismologist
M 2.6md
11km ESE of Willits, CA
- When
- Magnitude
- M 2.6 (md)
- Depth
- 7.4 km below the surface
- Felt
- 19 reports · strongest reported intensity IV
- Nearest
- Mendocino County, 19 km WNW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1955 days ago
This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 19 people have reported feeling it to USGS.
How big was it?
This earthquake released about 280 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 55,000× the energy of this one
- Magna, Utah 2020 M 5.7 39,000× the energy of this one
- Around the size people start to feel M 3.0 3.5× the energy of this one
- This earthquake M 2.6 about 280 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 39.3587, -123.2497. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Mendocino County, CA | 19 km (12 mi) | ESE of here | earthquakes near Mendocino County |
| Lake County, CA | 52 km (32 mi) | WNW of here | earthquakes near Lake County |
| Glenn County, CA | 78 km (48 mi) | WSW of here | earthquakes near Glenn County |
| Colusa County, CA | 89 km (56 mi) | WNW of here | earthquakes near Colusa County |
| Sonoma County, CA | 97 km (60 mi) | NNW of here | earthquakes near Sonoma County |
| Tehama County, CA | 122 km (76 mi) | SW of here | earthquakes near Tehama 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.
- 2.0 5km WSW of Laytonville, CA
- 1.6 8km SSE of Laytonville, CA
- 1.9 13km SE of Lake Pillsbury, CA
- 1.7 9km NNW of Redwood Valley, CA
- 1.6 15km SE of Laytonville, CA
- 1.7 5km WSW of Redwood Valley, CA
- 1.9 5km NE of Talmage, CA
- 2.1 9km ESE of Willits, CA
- 2.0 13km NE of Upper Lake, CA
- 1.6 10km NE of Navarro Head, CA
- 1.8 3km ENE of Laytonville, CA
- 1.9 12km WNW of Redwood Valley, CA
- 1.7 9km SE of Talmage, CA
- 1.8 11km W of Lakeport, CA
- 2.8 9km ESE of Willits, 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 4,700 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.