QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0md

3km NW of Lower Lake, CA

· 5.2 km deep · released about 32 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Lake County 22 kmColusa County 44 kmSonoma County 51 kmNapa County 54 kmYolo County 69 kmGlenn County 78 kmSutter County 82 kmMendocino County 89 kmSolano County 95 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
Magnitude
M 2.0 (md)
Depth
5.2 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Lake County, 22 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2064 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 32 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 470,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 330,000× the energy of this one
  3. Around the size people start to feel M 3.0 30× the energy of this one
  4. This earthquake M 2.0 about 32 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 38.9293, -122.6378. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Lake County, CA 22 km (14 mi) SSE of here earthquakes near Lake County
Colusa County, CA 44 km (27 mi) SW of here earthquakes near Colusa County
Sonoma County, CA 51 km (32 mi) NNE of here earthquakes near Sonoma County
Napa County, CA 54 km (34 mi) NNW of here earthquakes near Napa County
Yolo County, CA 69 km (43 mi) WNW of here earthquakes near Yolo County
Glenn County, CA 78 km (48 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

56 earthquakes have been recorded within 50 km since this one.

  1. 1.6 8km WNW of The Geysers, CA
  2. 2.2 10km ESE of Hidden Valley Lake, CA
  3. 2.1 5km WNW of Cobb, CA
  4. 1.7 9km WNW of The Geysers, CA
  5. 1.9 5km NW of The Geysers, CA
  6. 1.7 8km NW of The Geysers, CA
  7. 1.5 8km SSW of Kelseyville, CA
  8. 1.6 13km ESE of Hidden Valley Lake, CA
  9. 1.6 6km WNW of The Geysers, CA
  10. 2.1 3km NE of The Geysers, CA
  11. 1.6 6km WNW of The Geysers, CA
  12. 2.5 6km WNW of The Geysers, CA
  13. 1.8 3km SSW of Anderson Springs, CA
  14. 2.4 2km NE of The Geysers, CA
  15. 1.7 12km W of Lakeport, 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 40,000 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.