Earthquake · reviewed by a seismologist
M 2.5md
13km SSE of Lake Pillsbury, CA
- When
- Magnitude
- M 2.5 (md)
- Depth
- 11 km below the surface
- Felt
- no reports yet
- Nearest
- Lake County, 26 km SE
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 3123 days ago
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
How big was it?
This earthquake released about 160 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 95,000× the energy of this one
- Magna, Utah 2020 M 5.7 68,000× the energy of this one
- Around the size people start to feel M 3.0 6× the energy of this one
- This earthquake M 2.5 about 160 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 39.2955, -122.9277. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction | |
|---|---|---|---|
| Lake County, CA | 26 km (16 mi) | NW of here | earthquakes near Lake County |
| Mendocino County, CA | 47 km (29 mi) | ESE of here | earthquakes near Mendocino County |
| Glenn County, CA | 57 km (35 mi) | SW of here | earthquakes near Glenn County |
| Colusa County, CA | 61 km (38 mi) | WNW of here | earthquakes near Colusa County |
| Sonoma County, CA | 86 km (53 mi) | N of here | earthquakes near Sonoma County |
| Napa County, CA | 102 km (63 mi) | NNW of here | earthquakes near Napa County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
53 earthquakes have been recorded within 50 km since this one.
- 3.7 3km WNW of Redwood Valley, CA
- 1.6 18km NW of Lake Pillsbury, CA
- 1.5 6km NNE of Lake Pillsbury, CA
- 1.8 1km N of Talmage, CA
- 1.6 2km N of Talmage, CA
- 1.7 8km W of Redwood Valley, CA
- 1.8 17km WNW of Lake Pillsbury, CA
- 2.6 20km ENE of Clearlake Oaks, CA
- 1.6 13km N of Brooktrails, CA
- 2.2 12km SSE of Talmage, CA
- 1.8 15km ESE of Lake Pillsbury, CA
- 1.9 15km ESE of Lake Pillsbury, CA
- 1.6 24km NNW of Lake Pillsbury, CA
- 1.6 18km NE of Upper Lake, CA
- 1.7 8km SE of Lake Pillsbury, 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 8,200 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.