QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

Earthquake near Lake Morton-Berrydale, WA

No earthquake was likely felt in Lake Morton-Berrydale in the 24 hours to 9:08 pm PST (05:08 UTC). The last one was M 4.2, 47 km (29 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 Lake Morton-Berrydale

This page: a magnitude 1.6 earthquake was recorded 5 km (3 mi) south of Lake Morton-Berrydale, WA, at 7:22 am PST on 1 November 2026 (15:22 UTC), 22 km deep.

USGS: 5 km S of Lake Morton-Berrydale, Washington

8 km (5 mi) ESE of Auburn, WA · 41 km (26 mi) SSE of Seattle, WA

7:22 am PST, Nov 1, 2026 · · 22 km deep · released about 6.4 lb of TNT

10 km30 km60 km120 km N Pierce County 26 kmKing County 31 kmKitsap County 57 kmThurston County 67 kmMason County 81 kmLewis County 81 kmSnohomish County 89 kmIsland County 106 kmKittitas 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
7:22 am PST on 1 November 2026 ()
Where
5 km (3 mi) south of Lake Morton-Berrydale, WA · earthquakes near Lake Morton-Berrydale
Magnitude
M 1.6 (ml)
Depth
22 km below the surface
Felt
no reports yet
Nearest
Pierce County, 26 km S
Nearest mapped fault
Tacoma fault, 5 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 10 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 Lake Morton-Berrydale, 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: Lea Hill, Covington, Black Diamond, Auburn, Algona, Pacific.

How big was it?

This earthquake released about 6.4 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 2,400,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,700,000× the energy of this one
  3. Around the size people start to feel M 3.0 150× the energy of this one
  4. This earthquake M 1.6 about 6.4 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

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

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

  1. 6.8 The 2001 Nisqually, Washington Earthquake · 49 km WSW of this epicentre
  2. 6.7 4 km WNW of Roy, Washington · 48 km SW of this epicentre
  3. 6.7 1 km ENE of Dash Point, Washington · 23 km W of this epicentre
  4. 5.0 3 km WSW of Des Moines, Washington · 22 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 47.2852, -122.1077. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Pierce County, WA 26 km (16 mi) S earthquakes near Pierce County
King County, WA 31 km (19 mi) NE earthquakes near King County
Kitsap County, WA 57 km (35 mi) NW earthquakes near Kitsap County
Thurston County, WA 67 km (42 mi) SW earthquakes near Thurston County
Mason County, WA 81 km (50 mi) W earthquakes near Mason County
Lewis County, WA 81 km (50 mi) SSW earthquakes near Lewis County

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

Aftershocks so far

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

  1. 1.6 4 km NNW of Kapowsin, Washington
  2. 1.6 13 km ESE of Enumclaw, Washington
  3. 0.5 17 km S of Carbonado, Washington
  4. 1.5 12 km NNE of Snoqualmie, Washington
  5. 0.6 7 km ESE of Carnation, Washington
  6. 1.1 10 km E of Carnation, Washington
  7. 1.1 2 km NNW of Mirrormont, Washington
  8. 1.0 0 km ESE of Snoqualmie, Washington
  9. 1.0 10 km NE of Snoqualmie, Washington
  10. 0.6 4 km S of Carbonado, 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.

Revisions

USGS refines a solution as more stations report. Every change we have seen is listed here.

What changedFromToWhen
longitude-122.11-122.11
latitude47.2847.29
depth20.7921.82
magnitude1.621.55
review statusautomaticreviewed
longitude-122.11-122.11
latitude47.2947.28
depth17.9220.79
magnitude1.761.62

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.