QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

Earthquake near Seattle, WA

No earthquake was likely felt in Seattle in the 24 hours to 6:07 pm PST (02:07 UTC). The last one was M 4.2, 37 km (23 mi) SW, at 2:05 pm PDT on 29 September 2026, estimated intensity III (weak) in town; 9,329 felt reports to USGS. Every earthquake near Seattle

This page: a magnitude 1.9 earthquake was recorded 5 km (3 mi) south-southeast of Seattle, WA, at 6:40 am PST on 3 January 2024 (14:40 UTC), 16 km deep.

USGS: 5 km SSE of Seattle, Washington

7 km (4 mi) SE of Seattle, WA

6:40 am PST, Jan 3, 2024 · · 16 km deep · released about 19 lb of TNT

10 km30 km60 km120 km N Kitsap County 28 kmKing County 36 kmPierce County 58 kmSnohomish County 67 kmMason County 70 kmIsland County 71 kmThurston County 81 kmJefferson County 96 kmSkagit County 109 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
6:40 am PST on 3 January 2024 ()
Where
5 km (3 mi) south-southeast of Seattle, WA · earthquakes near Seattle
Magnitude
M 1.9 (ml)
Depth
16 km below the surface
Felt
no reports yet
Nearest
Kitsap County, 28 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 1044 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 Seattle, 5 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: Columbia City, Mercer Island, Boulevard Park, White Center, Medina, Bellevue.

How big was it?

This earthquake released about 19 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 790,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 560,000× the energy of this one
  3. Around the size people start to feel M 3.0 50× the energy of this one
  4. This earthquake M 1.9 about 19 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 12,000 times the energy of this one.

Before 2016, the USGS record lists 5 earthquakes of M5 or more within 50 km:

  1. 6.7 1 km ENE of Dash Point, Washington · 28 km SSW of this epicentre
  2. 6.1 Puget Sound region, Washington · 39 km WSW of this epicentre
  3. 5.4 8 km NNE of Lake Marcel-Stillwater, Washington · 38 km NE of this epicentre
  4. 5.2 9 km NE of Lake Marcel-Stillwater, Washington · 40 km ENE of this epicentre
  5. 5.0 3 km WSW of Des Moines, Washington · 21 km SSW 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 47.5668, -122.2970. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Kitsap County, WA 28 km (17 mi) WNW earthquakes near Kitsap County
King County, WA 36 km (22 mi) ESE earthquakes near King County
Pierce County, WA 58 km (36 mi) S earthquakes near Pierce County
Snohomish County, WA 67 km (42 mi) NE earthquakes near Snohomish County
Mason County, WA 70 km (44 mi) WSW earthquakes near Mason County
Island County, WA 71 km (44 mi) NNW earthquakes near Island 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 1 km NE of White Center, Washington
  2. 1.8 1 km E of Enetai, Washington
  3. 2.2 3 km SW of Redmond, Washington
  4. 1.7 2 km NW of Manchester, Washington
  5. 2.5 4 km WSW of Artondale, Washington
  6. 2.0 6 km WNW of Lofall, Washington
  7. 1.7 5 km SW of Port Ludlow, Washington
  8. 2.6 7 km WNW of Lofall, Washington
  9. 2.3 0 km ESE of Waller, Washington
  10. 1.9 6 km ENE of Lofall, Washington
  11. 2.2 8 km ENE of Quilcene, Washington
  12. 2.7 2 km E of Redmond, Washington
  13. 2.0 6 km NE of Snoqualmie, Washington
  14. 1.5 2 km N of Edmonds, Washington
  15. 1.6 3 km WNW of Shoreline, 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.