QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

Earthquake near Ukiah, CA

Yes: an earthquake was likely felt in Ukiah in the last 24 hours. M 1.5, 5 km (3 mi) E of Ukiah, at 3:26 am PST on 12 November 2026 (11:26 UTC); the estimated shaking in Ukiah was intensity II (weak). Every earthquake near Ukiah

This page: a magnitude 1.9 earthquake was recorded 43 km (27 mi) southwest of Ukiah, CA, at 7:42 am PDT on 17 June 2026 (14:42 UTC), 2.4 km deep.

USGS: 15 km ESE of Point Arena, CA

85 km (53 mi) WNW of Santa Rosa, CA

7:42 am PDT, Jun 17, 2026 · · 2.4 km deep · released about 24 lb of TNT

10 km30 km60 km120 km N Sonoma County 64 kmMendocino County 65 kmLake County 74 kmNapa County 112 kmMarin County 113 kmColusa County 118 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
7:42 am PDT on 17 June 2026 ()
Where
43 km (27 mi) southwest of Ukiah, CA · earthquakes near Ukiah
Magnitude
M 1.9 (md)
Depth
2.4 km below the surface
Felt
no reports yet
Nearest
Sonoma County, 64 km SE
Nearest mapped fault
San Andreas fault, 6 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 142 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 15 km (9 mi) from the epicentre. In Ukiah, 43 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: Sea Ranch, Boonville.

How big was it?

This earthquake released about 24 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 640,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 450,000× the energy of this one
  3. Around the size people start to feel M 3.0 40× the energy of this one
  4. This earthquake M 1.9 about 24 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 4.4 on 2020-12-06 — about 4,900 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 · 48 km NE 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 38.8548, -123.5363. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Sonoma County, CA 64 km (40 mi) SE earthquakes near Sonoma County
Mendocino County, CA 65 km (40 mi) N earthquakes near Mendocino County
Lake County, CA 74 km (46 mi) ENE earthquakes near Lake County
Napa County, CA 112 km (70 mi) ESE earthquakes near Napa County
Marin County, CA 113 km (70 mi) SE earthquakes near Marin County
Colusa County, CA 118 km (73 mi) ENE earthquakes near Colusa County

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

Aftershocks so far

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

  1. 1.5 3 km NE of Talmage, CA
  2. 2.2 10 km W of Boonville, CA
  3. 2.1 10 km W of Boonville, CA
  4. 1.7 10 km W of Boonville, CA
  5. 1.8 10 km W of Boonville, CA
  6. 2.7 10 km W of Boonville, CA
  7. 3.7 10 km W of Boonville, CA
  8. 1.9 14 km S of Willits, CA
  9. 1.6 5 km ESE of Boonville, CA
  10. 1.7 5 km SW of Redwood Valley, CA
  11. 1.9 4 km SSE of Cloverdale, CA
  12. 2.0 15 km W of Ukiah, CA
  13. 1.6 15 km ESE of Navarro Head, CA
  14. 1.7 15 km NW of Cloverdale, CA
  15. 1.6 7 km S of Boonville, 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.