QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5md

0 km SE of Green Valley, California

· 8.1 km deep · released about 5.9 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Solano County 19 kmNapa County 33 kmContra Costa County 41 kmYolo County 53 kmMarin County 56 kmAlameda County 70 kmSonoma County 74 kmSacramento County 74 kmSan Joaquin County 85 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 1.5 (md)
Depth
8.1 km below the surface
Felt
no reports yet
Nearest
Solano County, 19 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3461 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 5.9 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,800,000× the energy of this one
  3. Around the size people start to feel M 3.0 160× the energy of this one
  4. This earthquake M 1.5 about 5.9 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 38.2468, -122.1553. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Solano County, CA 19 km (12 mi) W of here earthquakes near Solano County
Napa County, CA 33 km (20 mi) SSE of here earthquakes near Napa County
Contra Costa County, CA 41 km (25 mi) NNW of here earthquakes near Contra Costa County
Yolo County, CA 53 km (33 mi) SSW of here earthquakes near Yolo County
Marin County, CA 56 km (35 mi) ENE of here earthquakes near Marin County
Alameda County, CA 70 km (43 mi) NNW of here earthquakes near Alameda County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

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

  1. 2.0 0 km W of Kensington, California
  2. 1.7 0 km W of Kensington, California
  3. 2.0 4 km NNW of Orinda, California
  4. 2.2 0 km ESE of North Gate, California
  5. 2.0 4 km NNW of Orinda, California
  6. 2.3 6 km N of Kenwood, California
  7. 2.0 1 km W of Danville, California
  8. 1.5 2 km E of Berkeley, California
  9. 1.6 2 km SW of American Canyon, California
  10. 2.8 15 km WSW of Esparto, California
  11. 1.7 13 km NNW of Moskowite Corner, California
  12. 3.3 2 km ENE of Angwin, California
  13. 1.9 14 km NW of Moskowite Corner, California
  14. 1.7 1 km ESE of Pacheco, California
  15. 1.8 4 km ENE of Clayton, 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.