QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

Earthquake near Tacoma, WA

No earthquake was likely felt in Tacoma in the 24 hours to 1:05 am PST (09:05 UTC). The last one was M 4.2, 27 km (17 mi) NW, at 2:05 pm PDT on 29 September 2026, estimated intensity III (weak) in town; 9,329 felt reports to USGS. Every earthquake near Tacoma

This page: a magnitude 1.5 earthquake was recorded 35 km (22 mi) southeast of Tacoma, WA, at 6:07 am PDT on 22 August 2025 (13:07 UTC), 14 km deep.

USGS: 0 km SSW of Carbonado, Washington

65 km (40 mi) SSE of Seattle, WA · 28 km (17 mi) SSE of Auburn, WA

6:07 am PDT, Aug 22, 2025 · · 14 km deep · released about 5.6 lb of TNT

10 km30 km60 km120 km N Pierce County 8 kmKing County 49 kmLewis County 60 kmThurston County 61 kmKitsap County 77 kmMason County 90 kmKittitas County 105 kmCowlitz County 108 kmSnohomish County 111 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
6:07 am PDT on 22 August 2025 ()
Where
35 km (22 mi) southeast of Tacoma, WA · earthquakes near Tacoma
Magnitude
M 1.5 (ml)
Depth
14 km below the surface
Felt
no reports yet
Nearest
Pierce County, 8 km WSW
Nearest mapped fault
Tacoma fault, 21 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 414 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 Tacoma, 35 km away, the estimate is intensity I (not felt). 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: Crocker, Prairie Heights, Prairie Ridge, Buckley, Orting, Bonney Lake.

How big was it?

This earthquake released about 5.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,700,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,900,000× the energy of this one
  3. Around the size people start to feel M 3.0 170× the energy of this one
  4. This earthquake M 1.5 about 5.6 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

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

Before 2016, the USGS record lists 3 earthquakes of M5 or more within 50 km:

  1. 6.7 4 km WNW of Roy, Washington · 42 km W of this epicentre
  2. 6.7 1 km ENE of Dash Point, Washington · 39 km NW of this epicentre
  3. 5.0 3 km WSW of Des Moines, Washington · 42 km NNW 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 47.0740, -122.0562. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Pierce County, WA 8 km (5 mi) WSW earthquakes near Pierce County
King County, WA 49 km (31 mi) NNE earthquakes near King County
Lewis County, WA 60 km (37 mi) SSW earthquakes near Lewis County
Thurston County, WA 61 km (38 mi) WSW earthquakes near Thurston County
Kitsap County, WA 77 km (48 mi) NW earthquakes near Kitsap County
Mason County, WA 90 km (56 mi) WNW earthquakes near Mason County

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

Aftershocks so far

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

  1. 1.9 6 km SSE of Lea Hill, Washington
  2. 1.7 9 km SE of Enumclaw, Washington
  3. 2.2 23 km ENE of Ashford, Washington
  4. 1.5 0 km NNW of Eatonville, Washington
  5. 1.7 1 km SW of Kapowsin, Washington
  6. 1.6 3 km ESE of Buckley, Washington
  7. 1.6 1 km SSE of Kapowsin, Washington
  8. 1.7 12 km ESE of Enumclaw, Washington
  9. 1.5 11 km NNE of Ashford, Washington
  10. 1.6 9 km S of Lake Morton-Berrydale, Washington
  11. 1.7 1 km ESE of Tacoma, Washington
  12. 1.5 2 km SSE of Kapowsin, Washington
  13. 2.0 5 km WSW of Crocker, Washington
  14. 1.7 1 km SE of Kapowsin, Washington
  15. 2.0 10 km ESE of Ashford, 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.