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 10 km (6 mi) north of Cloverdale, CA, at 11:34 am PDT on 27 October 2016 (18:34 UTC), 2.3 km deep.

USGS: 10 km N of Cloverdale, California

57 km (36 mi) NNW of Santa Rosa, CA · 135 km (84 mi) NNW of San Francisco, CA

11:34 am PDT, Oct 27, 2016 · · 2.3 km deep · released about 8.1 lb of TNT

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
11:34 am PDT on 27 October 2016 ()
Where
10 km (6 mi) north of Cloverdale, CA · earthquakes near Cloverdale
Magnitude
M 1.6 (md)
Depth
2.3 km below the surface
Felt
no reports yet
Nearest
Lake County, 33 km NE
Nearest mapped fault
Maacama 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 3533 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 11 km (7 mi) from the epicentre. In Cloverdale, 10 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.

Likely felt in: Cloverdale 10 km, intensity II. Estimated for each town centre; each link is that town's own record.

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.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

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

  1. 5.2 6 km ESE of Talmage, California · 25 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 38.8990, -123.0188. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Lake County, CA 33 km (21 mi) NE earthquakes near Lake County
Sonoma County, CA 42 km (26 mi) S earthquakes near Sonoma County
Mendocino County, CA 70 km (43 mi) NNW earthquakes near Mendocino County
Colusa County, CA 74 km (46 mi) ENE earthquakes near Colusa County
Napa County, CA 74 km (46 mi) SE earthquakes near Napa County
Glenn County, CA 95 km (59 mi) NE 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.