explosion · reviewed by a seismologist
M 2.3ml
Earthquake near Marysville, WA
No earthquake was likely felt in Marysville in the 24 hours to 1:11 am PST (09:11 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
No: USGS classifies this as a explosion, not an earthquake. A magnitude 2.3 explosion was recorded 16 km (10 mi) north-northwest of Marysville, WA, at 9:51 am PDT on 22 June 2022 (16:51 UTC), less than 1 km deep.
USGS: 3 km SSW of Silvana, Washington
14 km (9 mi) NW of Marysville, WA · 62 km (39 mi) N of Seattle, WA
- When
- 9:51 am PDT on 22 June 2022 ()
- Where
- 16 km (10 mi) north-northwest of Marysville, WA · earthquakes near Marysville
- Magnitude
- M 2.3 (ml)
- Depth
- -0.5 km below the surface
- Felt
- no reports yet
- Nearest
- Island County, 30 km W
- Nearest mapped fault
- Utsalady Point fault, 17 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 1605 days ago
Earthquake alerts for Marysville, WA
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Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
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 19 km (12 mi) from the epicentre. In Marysville, 16 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.
Likely felt in: Arlington 11 km, intensity II · Marysville 16 km, intensity II · Camano 19 km, intensity II. Estimated for each town centre; each link is that town's own record.
USGS catalogues this as explosion, not an earthquake.
How big was it?
This earthquake released about 74 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 200,000× the energy of this one
- Magna, Utah 2020 M 5.7 140,000× the energy of this one
- Around the size people start to feel M 3.0 13× the energy of this one
- This earthquake M 2.3 about 74 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 3,000 times the energy of this one.
Before 2016, the USGS record lists 2 earthquakes of M5 or more within 50 km:
- 5.0 4 km ENE of Machias, Washington · 28 km SE of this epicentre
- 5.0 6 km W of Conway, Washington · 21 km NW 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 48.1767, -122.2712. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Island County, WA | 30 km (18 mi) | W | earthquakes near Island County |
| Snohomish County, WA | 40 km (25 mi) | ESE | earthquakes near Snohomish County |
| Skagit County, WA | 49 km (30 mi) | NE | earthquakes near Skagit County |
| Kitsap County, WA | 66 km (41 mi) | SSW | earthquakes near Kitsap County |
| San Juan County, WA | 72 km (45 mi) | WNW | earthquakes near San Juan County |
| Whatcom County, WA | 81 km (50 mi) | NNE | earthquakes near Whatcom County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
48 earthquakes have been recorded within 50 km since this one.
- 1.8 4 km NNW of Bryant, Washington
- 1.6 Puget Sound region, Washington
- 1.7 4 km E of Granite Falls, Washington
- 1.7 5 km SW of Port Ludlow, Washington
- 2.3 6 km WSW of Shoreline, Washington
- 1.6 2 km NE of Esperance, Washington
- 1.7 Puget Sound region, Washington
- 1.9 1 km ENE of Granite Falls, Washington
- 1.5 5 km SW of Port Ludlow, Washington
- 1.9 2 km SSW of Esperance, Washington
- 1.9 4 km ENE of La Conner, Washington
- 1.7 1 km ENE of Granite Falls, Washington
- 1.6 2 km NNE of Woods Creek, Washington
- 1.5 4 km SW of Port Ludlow, Washington
- 1.6 0 km SW of Esperance, 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
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.