QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4ml

Earthquake near Friday Harbor, WA

No earthquake was likely felt in Friday Harbor in the 24 hours to 3:25 am PST (11:25 UTC). The last one was M 3.8, 41 km (25 mi) SE, at 11:35 pm PDT on 1 July 2026, estimated intensity II (weak) in town; 2,030 felt reports to USGS. Every earthquake near Friday Harbor

This page: a magnitude 2.4 earthquake was recorded 12 km (8 mi) south-southeast of Friday Harbor, WA, at 12:38 pm PST on 1 February 2022 (20:38 UTC), 6.8 km deep. 3 people have reported feeling it to USGS.

USGS: 12 km SSE of Friday Harbor, Washington

51 km (31 mi) SW of Bellingham, WA · 101 km (63 mi) NNW of Seattle, WA

12:38 pm PST, Feb 1, 2022 · · 6.8 km deep · released about 120 lb of TNT

Every earthquake near Friday Harbor Felt it? Tell USGS Check my area
10 km30 km60 km120 km N San Juan County 14 kmIsland County 37 kmClallam County 78 kmJefferson County 82 kmSkagit County 84 kmKitsap County 91 kmWhatcom County 94 kmSnohomish County 98 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
12:38 pm PST on 1 February 2022 ()
Where
12 km (8 mi) south-southeast of Friday Harbor, WA · earthquakes near Friday Harbor
Magnitude
M 2.4 (ml)
Depth
6.8 km below the surface
Felt
3 reports · strongest reported intensity III
Nearest
San Juan County, 14 km NW
Nearest mapped fault
Utsalady Point fault, 8 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 1560 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 20 km (12 mi) from the epicentre. In Friday Harbor, 12 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: Friday Harbor 12 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 120 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 92,000× the energy of this one
  3. Around the size people start to feel M 3.0 8.2× the energy of this one
  4. This earthquake M 2.4 about 120 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. 6.0 San Juan Islands, Washington · 32 km NNE of this epicentre
  2. 5.5 21 km SSE of Point Roberts, Washington · 41 km N of this epicentre
  3. 5.0 6 km W of Conway, Washington · 40 km ESE 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 48.4327, -122.9565. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
San Juan County, WA 14 km (8 mi) NW earthquakes near San Juan County
Island County, WA 37 km (23 mi) SE earthquakes near Island County
Clallam County, WA 78 km (48 mi) WSW earthquakes near Clallam County
Jefferson County, WA 82 km (51 mi) SSW earthquakes near Jefferson County
Skagit County, WA 84 km (52 mi) E earthquakes near Skagit County
Kitsap County, WA 91 km (57 mi) SSE earthquakes near Kitsap County

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

Aftershocks so far

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

  1. 1.5 5 km W of Coupeville, Washington
  2. 1.9 1 km NE of Six Mile, Canada
  3. 2.3 11 km NW of Orcas, Washington
  4. 3.3 1 km NNE of Coupeville, Washington
  5. 1.6 2 km ENE of Port Angeles East, Washington
  6. 4.3 Port Townsend, WA
  7. 2.2 Washington
  8. 1.5 10 km NW of Friday Harbor, Washington
  9. 1.8 0 km SSE of Camano, Washington
  10. 1.6 10 km ESE of Orcas, Washington
  11. 2.5 14 km W of Marietta, Washington
  12. 1.7 8 km WNW of Friday Harbor, Washington
  13. 2.6 21 km S of Friday Harbor, Washington
  14. 1.6 7 km S of Saanichton, Canada
  15. 1.6 4 km SSW of Esquimalt, Canada

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.