QuakeIndex

Earthquake · reviewed by a seismologist

M 4.4mw

Earthquake near Willits, CA

No earthquake was likely felt in Willits in the 24 hours to 7:15 pm PST (03:15 UTC). The last one was M 1.5, 9 km (5 mi) ESE, at 10:30 pm PST on 2 November 2026, estimated intensity II (weak) in town. Every earthquake near Willits

This page: a magnitude 4.4 earthquake was recorded 9 km (6 mi) east-southeast of Willits, CA, at 1:10 pm PST on 13 January 2026 (21:10 UTC), 8.5 km deep. 414 people have reported feeling it to USGS.

USGS: 9 km ESE of Willits, CA

1:10 pm PST, Jan 13, 2026 · · 8.5 km deep · released about 64 tons of TNT

10 km30 km60 km120 km N Mendocino County 17 kmLake County 54 kmGlenn County 77 kmColusa County 90 kmSonoma County 100 kmTehama County 119 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
1:10 pm PST on 13 January 2026 ()
Where
9 km (6 mi) east-southeast of Willits, CA · earthquakes near Willits
Magnitude
M 4.4 (mw)
Depth
8.5 km below the surface
Felt
414 reports · strongest reported intensity V
Measured shaking
intensity V (ShakeMap)
USGS impact alert
green
Tsunami
USGS flagged this event for tsunami evaluation. Follow tsunami.gov for official messages.
Nearest
Mendocino County, 17 km WNW
Nearest mapped fault
Maacama fault, 5 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 50 days ago

This was a light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon.

At this magnitude and depth, people at rest would likely notice it out to about 131 km (81 mi) from the epicentre. In Willits, 9 km away, the estimate is intensity IV (light). 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: Willits 9 km, intensity IV · Brooktrails 13 km, intensity IV · Ukiah 27 km, intensity III · Laytonville 38 km, intensity III · Upper Lake 39 km, intensity III · Boonville 44 km, intensity III · Covelo 45 km, intensity III · Fort Bragg 48 km, intensity III. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 64 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.4 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 2,600× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 120× the energy of this one
  3. Magna, Utah 2020 M 5.7 83× the energy of this one
  4. This earthquake M 4.4 about 64 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 130× more

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 5.1 on 2016-08-10 — about 10 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 · 33 km SSE 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 39.3922, -123.2513. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Mendocino County, CA 17 km (11 mi) WNW earthquakes near Mendocino County
Lake County, CA 54 km (33 mi) SE earthquakes near Lake County
Glenn County, CA 77 km (48 mi) ENE earthquakes near Glenn County
Colusa County, CA 90 km (56 mi) ESE earthquakes near Colusa County
Sonoma County, CA 100 km (62 mi) SSE earthquakes near Sonoma County
Tehama County, CA 119 km (74 mi) NE earthquakes near Tehama County

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

Aftershocks so far

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

  1. 1.8 7 km N of Lake Pillsbury, CA
  2. 1.6 7 km N of Lake Pillsbury, CA
  3. 1.7 9 km NNE of Brooktrails, CA
  4. 1.9 14 km E of Willits, CA
  5. 2.2 12 km SSE of Laytonville, CA
  6. 1.7 3 km SSE of Redwood Valley, CA
  7. 2.1 10 km NNE of Talmage, CA
  8. 2.0 3 km SSE of Redwood Valley, CA
  9. 1.9 10 km NNE of Talmage, CA
  10. 2.3 6 km SSE of Willits, CA
  11. 2.0 13 km W of Alder Springs, CA
  12. 1.8 2 km S of Redwood Valley, CA
  13. 2.1 15 km N of Brooktrails, CA
  14. 2.2 2 km S of Redwood Valley, CA
  15. 1.6 15 km N of Brooktrails, 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.