QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4ml

Earthquake near Belfair, WA

No earthquake was likely felt in Belfair in the 24 hours to 3:48 pm PST (23:48 UTC). The last one was M 4.2, 10 km (6 mi) SE, at 2:05 pm PDT on 29 September 2026, estimated intensity III (weak) in town; 9,329 felt reports to USGS. Every earthquake near Belfair

This page: a magnitude 2.4 earthquake was recorded 3 km (2 mi) east-northeast of Belfair, WA, at 2:52 am PDT on 25 March 2026 (09:52 UTC), 48 km deep. 1 person has reported feeling it to USGS.

USGS: 3 km ENE of Belfair, Washington

37 km (23 mi) WSW of Seattle, WA · 34 km (21 mi) W of Burien, WA

2:52 am PDT, Mar 25, 2026 · · 48 km deep · released about 120 lb of TNT

10 km30 km60 km120 km N Kitsap County 22 kmMason County 31 kmThurston County 59 kmPierce County 67 kmJefferson County 67 kmKing County 72 kmIsland County 78 kmGrays Harbor County 87 kmSnohomish County 101 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
2:52 am PDT on 25 March 2026 ()
Where
3 km (2 mi) east-northeast of Belfair, WA · earthquakes near Belfair
Magnitude
M 2.4 (ml)
Depth
48 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Kitsap County, 22 km NNE
Nearest mapped fault
Tacoma 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 161 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth it was probably too small to be felt, even directly above it. In Belfair, 3 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: Allyn, Bethel, Burley, Navy Yard City, East Port Orchard, Key Center.

How big was it?

This earthquake released about 120 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 89,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.9× the energy of this one
  4. This earthquake M 2.4 about 120 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 4.1 on 2017-02-23 — about 340 times the energy of this one.

Before 2016, the USGS record lists 6 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.8 The 2001 Nisqually, Washington Earthquake · 36 km S of this epicentre
  2. 6.7 1 km ENE of Dash Point, Washington · 33 km ESE of this epicentre
  3. 6.1 Puget Sound region, Washington · 8 km SSE of this epicentre
  4. 5.8 Puget Sound area, Washington · 22 km SSW of this epicentre
  5. 5.3 Eastern Olympic Peninsula, Washington · 40 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 47.4657, -122.7925. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Kitsap County, WA 22 km (14 mi) NNE earthquakes near Kitsap County
Mason County, WA 31 km (19 mi) WSW earthquakes near Mason County
Thurston County, WA 59 km (37 mi) S earthquakes near Thurston County
Pierce County, WA 67 km (41 mi) SE earthquakes near Pierce County
Jefferson County, WA 67 km (41 mi) NW earthquakes near Jefferson County
King County, WA 72 km (45 mi) E earthquakes near King County

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

Aftershocks so far

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

  1. 1.9 1 km SE of Belfair, Washington
  2. 0.7 0 km SSW of Chico, Washington
  3. 0.9 5 km NNW of Bangor Trident Base, Washington
  4. 1.1 7 km NNW of Bangor Trident Base, Washington
  5. 0.5 3 km ESE of Quilcene, Washington
  6. 0.7 7 km NNE of Brinnon, Washington
  7. 0.9 5 km W of Fox Island, Washington
  8. 1.1 4 km WSW of Chico, Washington
  9. 0.8 2 km W of Erlands Point-Kitsap Lake, Washington
  10. 0.7 3 km W of Erlands Point-Kitsap Lake, Washington
  11. 1.3 7 km ESE of Bainbridge Island, Washington
  12. 0.2 6 km E of Quilcene, Washington
  13. 1.1 2 km ENE of Tracyton, Washington
  14. 2.0 2 km ENE of Tracyton, Washington
  15. 0.9 3 km N of Enetai, Washington

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.