QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0ml

Earthquake near Marysville, WA

No earthquake was likely felt in Marysville in the 24 hours to 5:49 am PST (13:49 UTC). The last one was M 2.6, 19 km (12 mi) ENE, at 2:29 pm PDT on 30 October 2026, estimated intensity II (weak) in town. Every earthquake near Marysville

This page: a magnitude 2.0 earthquake was recorded 46 km (29 mi) north-northeast of Marysville, WA, at 7:48 pm PDT on 15 July 2023 (02:48 UTC), 3.5 km deep.

USGS: 14 km NE of Lake Cavanaugh, Washington

95 km (59 mi) NNE of Seattle, WA · 42 km (26 mi) NNE of Marysville, WA

7:48 pm PDT, Jul 15, 2023 · · 3.5 km deep · released about 36 lb of TNT

Every earthquake near Marysville Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Skagit County 10 kmSnohomish County 40 kmWhatcom County 49 kmIsland County 66 kmSan Juan County 92 kmKing County 102 kmKitsap County 103 kmChelan 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
7:48 pm PDT on 15 July 2023 ()
Where
46 km (29 mi) north-northeast of Marysville, WA · earthquakes near Marysville
Magnitude
M 2.0 (ml)
Depth
3.5 km below the surface
Felt
no reports yet
Nearest
Skagit County, 10 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1216 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 16 km (10 mi) from the epicentre. In Marysville, 46 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, Big Lake, Clear Lake, Bryant, Sedro-Woolley.

How big was it?

This earthquake released about 36 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 420,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 300,000× the energy of this one
  3. Around the size people start to feel M 3.0 27× the energy of this one
  4. This earthquake M 2.0 about 36 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 · 35 km ENE of this epicentre
  2. 5.0 4 km ENE of Machias, Washington · 46 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 48.4060, -121.8597. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Skagit County, WA 10 km (6 mi) NNE earthquakes near Skagit County
Snohomish County, WA 40 km (25 mi) S earthquakes near Snohomish County
Whatcom County, WA 49 km (30 mi) N earthquakes near Whatcom County
Island County, WA 66 km (41 mi) WSW earthquakes near Island County
San Juan County, WA 92 km (57 mi) W earthquakes near San Juan County
King County, WA 102 km (63 mi) S earthquakes near King 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. 2.8 4 km W of Mount Vernon, Washington
  2. 1.7 4 km WSW of Mount Vernon, Washington
  3. 2.6 4 km W of Mount Vernon, Washington
  4. 1.9 4 km W of Mount Vernon, Washington
  5. 1.7 8 km NNE of Sedro-Woolley, Washington
  6. 2.0 1 km ENE of Granite Falls, Washington
  7. 1.9 3 km W of Mount Vernon, Washington
  8. 2.9 3 km W of Mount Vernon, Washington
  9. 2.0 3 km S of Alger, Washington
  10. 1.7 4 km W of Mount Vernon, Washington
  11. 1.7 4 km WSW of Mount Vernon, Washington
  12. 1.6 2 km E of Granite Falls, Washington
  13. 1.7 5 km WSW of Mount Vernon, Washington
  14. 2.4 4 km W of Mount Vernon, Washington
  15. 1.6 4 km WSW of Darrington, 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.