QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

Earthquake near Suquamish, WA

No earthquake was likely felt in Suquamish in the 24 hours to 2:44 am PST (10:44 UTC). The last one was M 4.2, 39 km (24 mi) SSW, at 2:05 pm PDT on 29 September 2026, estimated intensity III (weak) in town; 9,329 felt reports to USGS. Every earthquake near Suquamish

This page: a magnitude 1.7 earthquake was recorded 4 km (2 mi) north-northwest of Suquamish, WA, at 6:28 pm PDT on 10 March 2024 (01:28 UTC), 27 km deep.

USGS: 3 km NNW of Suquamish, Washington

23 km (14 mi) NW of Seattle, WA · 17 km (11 mi) W of Shoreline, WA

6:28 pm PDT, Mar 10, 2024 · · 27 km deep · released about 12 lb of TNT

10 km30 km60 km120 km N Kitsap County 15 kmIsland County 45 kmKing County 63 kmMason County 64 kmSnohomish County 69 kmJefferson County 71 kmPierce County 85 kmSan Juan County 92 kmThurston County 94 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
6:28 pm PDT on 10 March 2024 ()
Where
4 km (2 mi) north-northwest of Suquamish, WA · earthquakes near Suquamish
Magnitude
M 1.7 (ml)
Depth
27 km below the surface
Felt
no reports yet
Nearest
Kitsap County, 15 km SSW
Nearest mapped fault
Southern Whidbey Island fault, 10 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 977 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 Suquamish, 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.

Earthquakes near other towns within 30 km: Indianola, Poulsbo, Kingston, Lofall, Bangor Trident Base, Woodway.

How big was it?

This earthquake released about 12 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 870,000× the energy of this one
  3. Around the size people start to feel M 3.0 78× the energy of this one
  4. This earthquake M 1.7 about 12 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 4.3 on 2023-10-09 — about 7,200 times the energy of this one.

Before 2016, the USGS record lists 4 earthquakes of M5 or more within 50 km:

  1. 6.7 1 km ENE of Dash Point, Washington · 50 km SSE of this epicentre
  2. 6.1 Puget Sound region, Washington · 42 km SSW of this epicentre
  3. 5.3 Eastern Olympic Peninsula, Washington · 32 km W of this epicentre
  4. 5.0 3 km WSW of Des Moines, Washington · 44 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 47.7600, -122.5733. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Kitsap County, WA 15 km (9 mi) SSW earthquakes near Kitsap County
Island County, WA 45 km (28 mi) N earthquakes near Island County
King County, WA 63 km (39 mi) ESE earthquakes near King County
Mason County, WA 64 km (40 mi) SW earthquakes near Mason County
Snohomish County, WA 69 km (43 mi) ENE earthquakes near Snohomish County
Jefferson County, WA 71 km (44 mi) W earthquakes near Jefferson County

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

Aftershocks so far

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

  1. 1.7 7 km WSW of Quilcene, Washington
  2. 1.6 1 km SW of Burien, Washington
  3. 1.8 4 km SSW of Port Ludlow, Washington
  4. 2.3 3 km WNW of Navy Yard City, Washington
  5. 1.7 2 km N of White Center, Washington
  6. 1.6 7 km ESE of Quilcene, Washington
  7. 1.8 5 km NE of Kingston, Washington
  8. 1.9 4 km WNW of Gorst, Washington
  9. 1.9 2 km E of Belfair, Washington
  10. 1.8 4 km NNW of Port Townsend, Washington
  11. 1.7 8 km SSW of Seabeck, Washington
  12. 1.8 3 km WNW of Gorst, Washington
  13. 2.7 1 km ENE of Enetai, Washington
  14. 1.9 1 km E of Enetai, Washington
  15. 1.6 4 km SW of Port Ludlow, 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.