QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8ml

Earthquake near Wauna, WA

No earthquake was likely felt in Wauna in the 24 hours to 6:21 pm PST (02:21 UTC). The last one was M 4.2, 6 km (4 mi) WNW, at 2:05 pm PDT on 29 September 2026, estimated intensity III (weak) in town; 9,329 felt reports to USGS. Every earthquake near Wauna

This page: a magnitude 2.8 earthquake was recorded 4 km (3 mi) west of Wauna, WA, at 3:48 pm PDT on 27 May 2026 (22:48 UTC), 26 km deep. 63 people have reported feeling it to USGS.

USGS: 4 km W of Wauna, Washington

38 km (23 mi) SW of Seattle, WA · 22 km (14 mi) NW of Tacoma, WA

3:48 pm PDT, May 27, 2026 · · 26 km deep · released about 550 lb of TNT

10 km30 km60 km120 km N Kitsap County 30 kmMason County 36 kmThurston County 50 kmPierce County 55 kmKing County 66 kmJefferson County 79 kmIsland County 87 kmGrays Harbor County 90 kmLewis County 92 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
3:48 pm PDT on 27 May 2026 ()
Where
4 km (3 mi) west of Wauna, WA · earthquakes near Wauna
Magnitude
M 2.8 (ml)
Depth
26 km below the surface
Felt
63 reports · strongest reported intensity II
Nearest
Kitsap County, 30 km N
Nearest mapped fault
Tacoma fault, under 1 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 99 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 14 km (9 mi) from the epicentre. In Wauna, 4 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: Artondale 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 550 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 28,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 19,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.7× the energy of this one
  4. This earthquake M 2.8 about 550 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 75 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 · 25 km S of this epicentre
  2. 6.7 4 km WNW of Roy, Washington · 41 km S of this epicentre
  3. 6.7 1 km ENE of Dash Point, Washington · 22 km ESE of this epicentre
  4. 6.1 Puget Sound region, Washington · 5 km NW of this epicentre
  5. 5.8 Puget Sound area, Washington · 18 km SW 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 47.3740, -122.6980. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Kitsap County, WA 30 km (18 mi) N earthquakes near Kitsap County
Mason County, WA 36 km (22 mi) W earthquakes near Mason County
Thurston County, WA 50 km (31 mi) SSW earthquakes near Thurston County
Pierce County, WA 55 km (34 mi) SE earthquakes near Pierce County
King County, WA 66 km (41 mi) ENE earthquakes near King County
Jefferson County, WA 79 km (49 mi) NW earthquakes near Jefferson County

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

Aftershocks so far

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

  1. 1.3 2 km ENE of Southworth, Washington
  2. 0.4 3 km S of Quilcene, Washington
  3. 0.6 6 km ESE of Quilcene, Washington
  4. 0.6 3 km SSW of Bainbridge Island, Washington
  5. 1.9 1 km SE of Belfair, Washington
  6. 0.7 0 km SSW of Chico, Washington
  7. 0.9 5 km NNW of Bangor Trident Base, Washington
  8. 1.1 7 km NNW of Bangor Trident Base, Washington
  9. 0.5 3 km ESE of Quilcene, Washington
  10. 0.7 7 km NNE of Brinnon, Washington
  11. 0.9 5 km W of Fox Island, Washington
  12. 1.1 4 km WSW of Chico, Washington
  13. 0.8 2 km W of Erlands Point-Kitsap Lake, Washington
  14. 0.7 3 km W of Erlands Point-Kitsap Lake, Washington
  15. 1.3 7 km ESE of Bainbridge Island, 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.