QuakeIndex

Earthquake · reviewed by a seismologist

M 3.2ml

Earthquake near Maplewood, WA

No earthquake was likely felt in Maplewood in the 24 hours to 2:45 pm PST (22:45 UTC). The last one was M 4.2, 12 km (8 mi) W, at 2:05 pm PDT on 29 September 2026, estimated intensity III (weak) in town; 9,329 felt reports to USGS. Every earthquake near Maplewood

This page: a magnitude 3.2 earthquake was recorded 7 km (4 mi) east-southeast of Maplewood, WA, at 11:10 pm PDT on 17 March 2025 (06:10 UTC), 23 km deep. 1,291 people have reported feeling it to USGS.

USGS: 7 km ESE of Maplewood, Washington

28 km (17 mi) SSW of Seattle, WA · 13 km (8 mi) NW of Federal Way, WA

11:10 pm PDT, Mar 17, 2025 · · 23 km deep · released about 1.1 tons of TNT

Every earthquake near Maplewood Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kitsap County 32 kmPierce County 44 kmKing County 49 kmMason County 53 kmThurston County 56 kmIsland County 88 kmLewis County 89 kmSnohomish County 92 kmJefferson 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
11:10 pm PDT on 17 March 2025 ()
Where
7 km (4 mi) east-southeast of Maplewood, WA · earthquakes near Maplewood
Magnitude
M 3.2 (ml)
Depth
23 km below the surface
Felt
1,291 reports · strongest reported intensity IV
Measured shaking
intensity III (ShakeMap)
Nearest
Kitsap County, 32 km NNW
Nearest mapped fault
Tacoma fault, 2 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 535 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 42 km (26 mi) from the epicentre. In Maplewood, 7 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: Des Moines 11 km, intensity II · Federal Way 13 km, intensity II · Burien 14 km, intensity II · Tacoma 14 km, intensity II · Artondale 14 km, intensity II · SeaTac 15 km, intensity II · University Place 17 km, intensity II · Kent 18 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 1.1 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.2 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 160,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 7,200× the energy of this one
  3. Magna, Utah 2020 M 5.7 5,100× the energy of this one
  4. This earthquake M 3.2 about 1.1 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 2.2× more

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

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

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 · 32 km SW of this epicentre
  2. 6.7 4 km WNW of Roy, Washington · 42 km SSW of this epicentre
  3. 6.7 1 km ENE of Dash Point, Washington · 8 km SE of this epicentre
  4. 6.1 Puget Sound region, Washington · 21 km W of this epicentre
  5. 5.8 Puget Sound area, Washington · 34 km WSW 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 47.3795, -122.4703. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Kitsap County, WA 32 km (20 mi) NNW earthquakes near Kitsap County
Pierce County, WA 44 km (27 mi) SSE earthquakes near Pierce County
King County, WA 49 km (31 mi) ENE earthquakes near King County
Mason County, WA 53 km (33 mi) W earthquakes near Mason County
Thurston County, WA 56 km (35 mi) SSW earthquakes near Thurston County
Island County, WA 88 km (55 mi) N earthquakes near Island County

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

Aftershocks so far

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

  1. 1.7 0 km W of Beaux Arts Village, Washington
  2. 1.5 1 km WSW of Kapowsin, Washington
  3. 1.6 2 km NNE of Enetai, Washington
  4. 1.7 10 km NW of Belfair, Washington
  5. 1.6 2 km W of Belfair, Washington
  6. 1.6 8 km SSW of Grapeview, Washington
  7. 2.2 4 km ESE of Enumclaw, Washington
  8. 1.6 1 km SSE of Kapowsin, Washington
  9. 1.9 4 km WSW of Shoreline, Washington
  10. 1.9 1 km NNE of Suquamish, Washington
  11. 1.5 0 km SSW of Carbonado, Washington
  12. 1.9 1 km NNW of Maple Valley, Washington
  13. 1.6 5 km SE of Enumclaw, Washington
  14. 1.5 5 km NNE of Dash Point, Washington
  15. 2.1 4 km NE of Vashon, 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.