QuakeIndex

Earthquake · reviewed by a seismologist

M 0.8md

Earthquake near Forks, WA

USGS: 14 km W of Sekiu, Washington

9:41 am PDT, Sep 29, 2026 · · 30 km deep · released about 0.43 lb of TNT

10 km30 km60 km120 km N Clallam County 48 kmJefferson County 88 kmSan Juan County 106 km
Distance rings around the epicentre, with the nearest towns at their true direction. Not a shaking map — see the USGS ShakeMap for that.
When
9:41 am PDT on 29 September 2026 ()
Where
36 km (22 mi) NNW of Forks, WA · earthquakes near Forks
Magnitude
M 0.8 (md)
Depth
30 km below the surface
Felt
no reports yet
Nearest
Clallam County, 48 km ESE
Nearest mapped fault
Calawah 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 3 days ago

A magnitude 0.8 earthquake was recorded 36 km (22 mi) NNW of Forks, WA, at 9:41 am PDT on 29 September 2026 (16:41 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 0.43 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 1.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 35,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 25,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 2,200× the energy of this one
  4. This earthquake M 0.8 about 0.43 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 since 1900 lists no earthquake of M5 or more within 50 km.

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 48.2650, -124.4948. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Clallam County, WA 48 km (30 mi) ESE earthquakes near Clallam County
Jefferson County, WA 88 km (55 mi) SE earthquakes near Jefferson County
San Juan County, WA 106 km (66 mi) ENE earthquakes near San Juan County
Mason County, WA 142 km (88 mi) SE earthquakes near Mason County

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

Aftershocks so far

No further earthquakes have been recorded within 50 km since this one.

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.