QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2ml

Earthquake near Carnation, WA

Yes: an earthquake was likely felt in Carnation in the last 24 hours. M 2.0, 3 km (2 mi) NE of Carnation, at 8:48 am PST on 11 November 2026 (16:48 UTC); the estimated shaking in Carnation was intensity II (weak). Every earthquake near Carnation

This page: a magnitude 2.2 earthquake was recorded 3 km (2 mi) south-southeast of Carnation, WA, at 2:42 am PDT on 13 July 2021 (09:42 UTC), 26 km deep. 5 people have reported feeling it to USGS.

USGS: 2 km SSE of Carnation, Washington

11 km (7 mi) ENE of Sammamish, WA · 34 km (21 mi) E of Seattle, WA

2:42 am PDT, Jul 13, 2021 · · 26 km deep · released about 58 lb of TNT

10 km30 km60 km120 km N King County 16 kmSnohomish County 49 kmKitsap County 56 kmPierce County 66 kmIsland County 83 kmSkagit County 97 kmChelan County 100 kmMason County 100 kmThurston County 104 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
2:42 am PDT on 13 July 2021 ()
Where
3 km (2 mi) south-southeast of Carnation, WA · earthquakes near Carnation
Magnitude
M 2.2 (ml)
Depth
26 km below the surface
Felt
5 reports · strongest reported intensity III
Nearest
King County, 16 km SSE
Nearest mapped fault
Rattlesnake Mountain 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 1882 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 Carnation, 3 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: Ames Lake, Fall City, Lake Marcel-Stillwater, Klahanie, City of Sammamish, Union Hill-Novelty Hill.

How big was it?

This earthquake released about 58 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 260,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 180,000× the energy of this one
  3. Around the size people start to feel M 3.0 16× the energy of this one
  4. This earthquake M 2.2 about 58 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 3,800 times the energy of this one.

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

  1. 5.4 8 km NNE of Lake Marcel-Stillwater, Washington · 16 km N of this epicentre
  2. 5.2 9 km NE of Lake Marcel-Stillwater, Washington · 15 km NNE of this epicentre
  3. 5.0 4 km ENE of Machias, Washington · 43 km N of this epicentre
  4. 5.0 3 km WSW of Des Moines, Washington · 43 km SW 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 47.6225, -121.9017. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
King County, WA 16 km (10 mi) SSE earthquakes near King County
Snohomish County, WA 49 km (31 mi) NNE earthquakes near Snohomish County
Kitsap County, WA 56 km (35 mi) W earthquakes near Kitsap County
Pierce County, WA 66 km (41 mi) SSW earthquakes near Pierce County
Island County, WA 83 km (51 mi) NW earthquakes near Island County
Skagit County, WA 97 km (60 mi) N earthquakes near Skagit County

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

Aftershocks so far

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

  1. 1.7 4 km SW of White Center, Washington
  2. 1.8 3 km WSW of White Center, Washington
  3. 2.1 5 km SW of Black Diamond, Washington
  4. 1.8 3 km NNW of Picnic Point, Washington
  5. 1.5 5 km SW of Des Moines, Washington
  6. 1.8 5 km SW of Des Moines, Washington
  7. 1.6 6 km SW of Sultan, Washington
  8. 1.6 Washington
  9. 1.6 Puget Sound region, Washington
  10. 1.5 Washington
  11. 1.8 2 km SSE of Lake Forest Park, Washington
  12. 2.0 Washington
  13. 3.1 6 km SSE of Black Diamond, Washington
  14. 1.9 2 km E of Union Hill-Novelty Hill, Washington
  15. 1.7 5 km SW of Seattle, 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.