QuakeIndex

Earthquake · reviewed by a seismologist

M 1.3ml

Earthquake near Bainbridge Island, WA

Yes. A magnitude 1.3 earthquake was recorded 7 km (5 mi) ESE of Bainbridge Island, WA, at 7:48 am PDT on 10 October 2026 (14:48 UTC), 31 km deep.

This was on 10 October 2026. The latest near Bainbridge Island: M 4.2 on 29 September 2026.

USGS: 7 km ESE of Bainbridge Island, Washington

7 km (4 mi) WSW of Seattle, WA

7:48 am PDT, Oct 10, 2026 · · 31 km deep · released about 2.4 lb of TNT

10 km30 km60 km120 km N Kitsap County 17 kmKing County 47 kmMason County 62 kmPierce County 64 kmIsland County 65 kmSnohomish County 72 kmThurston County 79 kmJefferson County 85 kmSkagit County 110 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
7:48 am PDT on 10 October 2026 ()
Where
7 km (5 mi) ESE of Bainbridge Island, WA · earthquakes near Bainbridge Island
Magnitude
M 1.3 (ml)
Depth
31 km below the surface
Felt
no reports yet
Nearest
Kitsap County, 17 km WNW
Nearest mapped fault
Seattle 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 3 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. 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: Seattle, Manchester, Southworth, White Center, Enetai, Columbia City.

How big was it?

This earthquake released about 2.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 6,200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 4,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 390× the energy of this one
  4. This earthquake M 1.3 about 2.4 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 4.6 on 2019-07-12 — about 92,000 times the energy of this one.

Before 2016, the USGS record lists 7 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.7 1 km ENE of Dash Point, Washington · 30 km S of this epicentre
  2. 6.1 Puget Sound region, Washington · 32 km SW of this epicentre
  3. 5.8 Puget Sound area, Washington · 49 km SW of this epicentre
  4. 5.4 8 km NNE of Lake Marcel-Stillwater, Washington · 46 km ENE of this epicentre
  5. 5.3 Eastern Olympic Peninsula, Washington · 48 km WNW 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 47.5940, -122.4370. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Kitsap County, WA 17 km (10 mi) WNW earthquakes near Kitsap County
King County, WA 47 km (29 mi) ESE earthquakes near King County
Mason County, WA 62 km (38 mi) WSW earthquakes near Mason County
Pierce County, WA 64 km (40 mi) SSE earthquakes near Pierce County
Island County, WA 65 km (40 mi) NNW earthquakes near Island County
Snohomish County, WA 72 km (45 mi) NE earthquakes near Snohomish County

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

Aftershocks so far

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

  1. 1.0 4 km WSW of Ravensdale, Washington
  2. 0.9 3 km NNE of Lake Marcel-Stillwater, Washington
  3. 1.1 4 km WSW of Chico, Washington
  4. 0.8 2 km W of Erlands Point-Kitsap Lake, Washington
  5. 0.7 3 km W of Erlands Point-Kitsap Lake, 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.