QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2ml

Earthquake near Everett, WA

No earthquake was likely felt in Everett in the 24 hours to 5:47 am PST (13:47 UTC). The last one was M 4.2, 75 km (47 mi) SSW, at 2:05 pm PDT on 29 September 2026, estimated intensity II (weak) in town; 9,329 felt reports to USGS. Every earthquake near Everett

This page: a magnitude 2.2 earthquake was recorded 47 km (29 mi) north-northeast of Everett, WA, at 5:32 pm PDT on 1 August 2021 (00:32 UTC), less than 1 km deep. 4 people have reported feeling it to USGS.

USGS: 8 km NE of Oso, Washington

87 km (54 mi) NNE of Seattle, WA · 35 km (22 mi) NE of Marysville, WA

5:32 pm PDT, Aug 1, 2021 · · -0.5 km deep · released about 60 lb of TNT

10 km30 km60 km120 km N Skagit County 19 kmSnohomish County 31 kmWhatcom County 57 kmIsland County 63 kmKing County 93 kmSan Juan County 94 kmKitsap County 97 kmChelan County 106 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
5:32 pm PDT on 1 August 2021 ()
Where
47 km (29 mi) north-northeast of Everett, WA · earthquakes near Everett
Magnitude
M 2.2 (ml)
Depth
-0.5 km below the surface
Felt
4 reports · strongest reported intensity III
Nearest
Skagit County, 19 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1857 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 18 km (11 mi) from the epicentre. In Everett, 47 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: Darrington, Arlington Heights, Bryant, Arlington, Granite Falls, Big Lake.

How big was it?

This earthquake released about 60 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 5.8 250,000× 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 60 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. 5.6 Near Marblemount, Washington · 39 km ENE of this epicentre
  2. 5.0 4 km ENE of Machias, Washington · 38 km SSW of this epicentre
  3. 5.0 6 km W of Conway, Washington · 43 km W 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 48.3282, -121.8570. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Skagit County, WA 19 km (12 mi) N earthquakes near Skagit County
Snohomish County, WA 31 km (19 mi) SSE earthquakes near Snohomish County
Whatcom County, WA 57 km (36 mi) N earthquakes near Whatcom County
Island County, WA 63 km (39 mi) WSW earthquakes near Island County
King County, WA 93 km (58 mi) S earthquakes near King County
San Juan County, WA 94 km (58 mi) WNW earthquakes near San Juan 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. 2.3 3 km SSW of Silvana, Washington
  2. 1.5 4 km ENE of Oso, Washington
  3. 2.2 7 km ENE of Oso, Washington
  4. 1.5 4 km NE of Oso, Washington
  5. 1.8 5 km ENE of Oso, Washington
  6. 3.4 6 km ENE of Oso, Washington
  7. 1.5 1 km NNW of Granite Falls, Washington
  8. 3.6 2 km E of Mount Vernon, Washington
  9. 2.9 7 km NE of Darrington, Washington
  10. 1.9 1 km WNW of Mount Vernon, Washington
  11. 1.7 1 km ESE of Acme, Washington
  12. 1.6 2 km ENE of Granite Falls, Washington
  13. 2.0 4 km W of Lake Cavanaugh, Washington
  14. 1.7 1 km NNW of Silvana, Washington
  15. 1.6 2 km E of Granite Falls, 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.