QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

Earthquake near Cloverdale, CA

Yes: an earthquake was likely felt in Cloverdale in the last 24 hours. M 1.7, 7 km (4 mi) SE of Cloverdale, at 7:43 pm PST on 11 November 2026 (03:43 UTC); the estimated shaking in Cloverdale was intensity II (weak). Every earthquake near Cloverdale

This page: a magnitude 1.6 earthquake was recorded 12 km (8 mi) southeast of Cloverdale, CA, at 7:14 pm PDT on 7 July 2023 (02:14 UTC), 7.3 km deep.

USGS: 12km SE of Cloverdale, CA

36 km (23 mi) NNW of Santa Rosa, CA · 114 km (71 mi) NNW of San Francisco, CA

7:14 pm PDT, Jul 7, 2023 · · 7.3 km deep · released about 7.1 lb of TNT

10 km30 km60 km120 km N Sonoma County 23 kmLake County 45 kmNapa County 57 kmMarin County 77 kmColusa County 77 kmYolo County 88 kmMendocino County 91 kmSolano County 99 kmGlenn County 107 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
7:14 pm PDT on 7 July 2023 ()
Where
12 km (8 mi) southeast of Cloverdale, CA · earthquakes near Cloverdale
Magnitude
M 1.6 (md)
Depth
7.3 km below the surface
Felt
no reports yet
Nearest
Sonoma County, 23 km S
Nearest mapped fault
Alexander-Redwood Hill fault, 2 km from its surface trace — near is not the same as on
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1223 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 8 km (5 mi) from the epicentre. In Cloverdale, 12 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Earthquakes near other towns within 30 km: Healdsburg, Cobb, Windsor, Middletown, Guerneville, Larkfield-Wikiup.

How big was it?

This earthquake released about 7.1 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 2,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,500,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.1 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.

For this area

The largest earthquake within 50 km since 2016 was M 5.0 on 2016-12-14 — about 140,000 times the energy of this one.

Before 2016, the USGS record lists 3 earthquakes of M5 or more within 50 km:

  1. 5.3 3 km E of Bloomfield, California · 47 km SSE of this epicentre
  2. 5.3 Northern California · 46 km S of this epicentre
  3. 5.2 6 km ESE of Talmage, California · 46 km NNW of this epicentre

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 38.7288, -122.9133. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Sonoma County, CA 23 km (14 mi) S earthquakes near Sonoma County
Lake County, CA 45 km (28 mi) NNE earthquakes near Lake County
Napa County, CA 57 km (35 mi) ESE earthquakes near Napa County
Marin County, CA 77 km (48 mi) S earthquakes near Marin County
Colusa County, CA 77 km (48 mi) NE earthquakes near Colusa County
Yolo County, CA 88 km (55 mi) E earthquakes near Yolo County

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

Aftershocks so far

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

  1. 1.7 8 km WNW of Cobb, CA
  2. 1.5 7 km SSW of Calistoga, CA
  3. 1.6 6 km NW of The Geysers, CA
  4. 1.7 13 km NW of The Geysers, CA
  5. 1.7 3 km SSW of Cobb, CA
  6. 1.6 7 km NW of The Geysers, CA
  7. 1.9 3 km NW of The Geysers, CA
  8. 1.7 3 km NW of The Geysers, CA
  9. 1.7 9 km WNW of Cobb, CA
  10. 1.8 6 km NW of The Geysers, CA
  11. 2.2 7 km NW of The Geysers, CA
  12. 2.1 7 km NW of The Geysers, CA
  13. 2.3 7 km NW of The Geysers, CA
  14. 2.0 14 km W of Lakeport, CA
  15. 1.8 2 km WSW of Anderson Springs, 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.

On USGS

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