QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

10 km N of Cloverdale, California

· 2.3 km deep · released about 8.1 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Lake County 33 kmSonoma County 42 kmMendocino County 70 kmColusa County 74 kmNapa County 74 kmGlenn County 95 kmMarin County 97 kmYolo County 100 kmSutter County 115 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 1.6 (md)
Depth
2.3 km below the surface
Felt
no reports yet
Nearest
Lake County, 33 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3487 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 8.1 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,900,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,300,000× the energy of this one
  3. Around the size people start to feel M 3.0 120× the energy of this one
  4. This earthquake M 1.6 about 8.1 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 38.8990, -123.0188. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Lake County, CA 33 km (21 mi) SW of here earthquakes near Lake County
Sonoma County, CA 42 km (26 mi) N of here earthquakes near Sonoma County
Mendocino County, CA 70 km (43 mi) SSE of here earthquakes near Mendocino County
Colusa County, CA 74 km (46 mi) WSW of here earthquakes near Colusa County
Napa County, CA 74 km (46 mi) NW of here earthquakes near Napa County
Glenn County, CA 95 km (59 mi) SW 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. 2.4 5 km SW of Cobb, California
  2. 2.0 Northern California
  3. 1.9 5 km WNW of Cobb, California
  4. 2.0 3 km SSW of Cobb, California
  5. 1.8 3 km SSW of Cobb, California
  6. 1.6 4 km SW of Cobb, California
  7. 2.1 8 km W of Cobb, California
  8. 2.2 8 km W of Cobb, California
  9. 1.5 4 km WSW of Cobb, California
  10. 1.8 10 km W of Cobb, California
  11. 2.1 9 km NE of Healdsburg, California
  12. 1.8 10 km W of Cobb, California
  13. 1.5 4 km WNW of Cobb, California
  14. 1.6 5 km NE of Cloverdale, California
  15. 3.3 7 km W of Middletown, California

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.

On USGS

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