QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7md

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 2.7 earthquake was recorded 12 km (8 mi) east-northeast of Cloverdale, CA, at 8:23 am PDT on 25 April 2022 (15:23 UTC), 2.6 km deep. 2 people have reported feeling it to USGS.

USGS: 12km ENE of Cloverdale, CA

46 km (28 mi) NNW of Santa Rosa, CA · 124 km (77 mi) NNW of San Francisco, CA

8:23 am PDT, Apr 25, 2022 · · 2.6 km deep · released about 390 lb of TNT

10 km30 km60 km120 km N Lake County 33 kmSonoma County 34 kmNapa County 60 kmColusa County 67 kmMendocino County 82 kmYolo County 86 kmMarin County 88 kmGlenn County 95 kmSolano County 103 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
8:23 am PDT on 25 April 2022 ()
Where
12 km (8 mi) east-northeast of Cloverdale, CA · earthquakes near Cloverdale
Magnitude
M 2.7 (md)
Depth
2.6 km below the surface
Felt
2 reports · strongest reported intensity III
Nearest
Lake County, 33 km NNE
Nearest mapped fault
Maacama fault, 7 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 1591 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 25 km (16 mi) from the epicentre. In Cloverdale, 12 km away, the estimate is intensity III (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.

Likely felt in: Cloverdale 12 km, intensity III · Cobb 14 km, intensity III · Lakeport 24 km, intensity II · Healdsburg 25 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 390 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 39,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 28,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.5× the energy of this one
  4. This earthquake M 2.7 about 390 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 2,500 times the energy of this one.

Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:

  1. 5.2 6 km ESE of Talmage, California · 37 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 38.8328, -122.8798. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Lake County, CA 33 km (20 mi) NNE earthquakes near Lake County
Sonoma County, CA 34 km (21 mi) S earthquakes near Sonoma County
Napa County, CA 60 km (37 mi) SE earthquakes near Napa County
Colusa County, CA 67 km (42 mi) NE earthquakes near Colusa County
Mendocino County, CA 82 km (51 mi) NW earthquakes near Mendocino County
Yolo County, CA 86 km (54 mi) E earthquakes near Yolo County

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

Aftershocks so far

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

  1. 1.8 6km NW of The Geysers, CA
  2. 1.8 7km W of Cobb, CA
  3. 1.6 6km WNW of The Geysers, CA
  4. 1.8 6km WNW of The Geysers, CA
  5. 1.5 9km WNW of Cobb, CA
  6. 1.5 5km WNW of The Geysers, CA
  7. 1.6 5km ENE of Upper Lake, CA
  8. 1.7 2km NE of The Geysers, CA
  9. 1.9 3km SW of Anderson Springs, CA
  10. 1.6 3km SW of Anderson Springs, CA
  11. 2.0 7km NW of The Geysers, CA
  12. 2.0 6km WNW of Cobb, CA
  13. 1.6 4km NW of The Geysers, CA
  14. 1.6 6km WNW of The Geysers, CA
  15. 1.5 10km NW of The Geysers, 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.