Washington earthquakes

M2.2 earthquake 9 km NNW of Friday Harbor, Washington

A magnitude 2.2 earthquake struck 9 km NNW of Friday Harbor, Washington on Sun, Mar 9, 1986, 9:20 PM PST (05:20 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.0 5 km ENE of Ferndale, Washington. This one was a foreshock.

Friday Harbor forecastMore in Washington

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
2.2 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1986-03-10 05:20:27 UTC
Depth
10.3 km (6.4 mi), shallow
Epicenter
48.602° N, 123.085° W
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 2.9 km horizontally, 5.6 km in depth
Magnitude uncertainty
±0.07
Depth from
Operator assigned
Station coverage gap
187°, poorly surrounded by stations
Stations used
21

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 1.813 km SE of Oak Bay, Canada · 14814 days ago · 49 km deep · 26 km away
  2. 1.9Washington · 14801 days ago · 21 km deep · 48 km away
  3. 1.63 km WNW of Picnic Point, Washington · 14800 days ago · 9 km deep · 95 km away
  4. 2.310 km NW of Friday Harbor, Washington · 14785 days ago · 12 km deep · 2 km away
  5. 2.48 km SE of Glacier, Washington · 14778 days ago · 0 km deep · 93 km away
  6. 3.05 km ENE of Ferndale, Washington · 14775 days ago · 17 km deep · 51 km away
  7. 1.57 km NNE of Lake Cavanaugh, Washington · 14763 days ago · 2 km deep · 85 km away
  8. 2.36 km S of Hansville, Washington · 14762 days ago · 25 km deep · 92 km away
  9. 2.63 km NNW of Kingston, Washington · 14761 days ago · 25 km deep · 96 km away

Before

  1. 1.69 km NE of Lake Cavanaugh, Washington · 14838 days ago · -1 km deep · 87 km away
  2. 1.69 km NNE of Lake Cavanaugh, Washington · 14844 days ago · 2 km deep · 86 km away
  3. 1.79 km NNE of Lake Cavanaugh, Washington · 14844 days ago · 3 km deep · 86 km away
  4. 2.28 km NNE of Lake Cavanaugh, Washington · 14844 days ago · 1 km deep · 86 km away
  5. 3.99 km NE of Lake Cavanaugh, Washington · 14844 days ago · -1 km deep · 87 km away
  6. 3.19 km NE of Lake Cavanaugh, Washington · 14844 days ago · 3 km deep · 87 km away
  7. 1.59 km NE of Lake Cavanaugh, Washington · 14845 days ago · -1 km deep · 87 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10203558. Read Sat, Oct 3, 2026, 3:18 AM UTC.