QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

2 km SW of American Canyon, California

· 11 km deep · released about 8.1 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Solano County 32 kmNapa County 39 kmContra Costa County 39 kmMarin County 43 kmAlameda County 65 kmYolo County 66 kmSonoma County 70 kmSan Francisco County 82 kmSan Mateo County 83 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
11 km below the surface
Felt
no reports yet
Nearest
Solano County, 32 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3329 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 38.1602, -122.2792. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Solano County, CA 32 km (20 mi) WSW of here earthquakes near Solano County
Napa County, CA 39 km (24 mi) S of here earthquakes near Napa County
Contra Costa County, CA 39 km (24 mi) NW of here earthquakes near Contra Costa County
Marin County, CA 43 km (26 mi) ENE of here earthquakes near Marin County
Alameda County, CA 65 km (41 mi) NNW of here earthquakes near Alameda County
Yolo County, CA 66 km (41 mi) SSW of here earthquakes near Yolo 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. 2.0 6 km NW of Bayview, California
  2. 1.7 1 km SSW of Clyde, California
  3. 1.7 1 km SW of Clyde, California
  4. 2.3 2 km WSW of Clyde, California
  5. 1.5 1 km SSE of Clyde, California
  6. 1.8 16 km NNW of Moskowite Corner, California
  7. 2.6 7 km NE of Rohnert Park, California
  8. 1.7 1 km WNW of Concord, California
  9. 1.9 3 km SE of Rodeo, California
  10. 2.0 6 km SSW of Yountville, California
  11. 1.7 7 km W of San Ramon, California
  12. 1.6 2 km ENE of Alameda, California
  13. 2.9 6 km W of Kenwood, California
  14. 1.7 2 km E of Berkeley, California
  15. 1.5 4 km SSW of Oakville, 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.