Washington earthquakes

M1.7 earthquake 4 km E of Blaine, Washington

A magnitude 1.7 earthquake struck 4 km E of Blaine, Washington on Tue, Sep 19, 1989, 6:43 PM PDT (01:43 UTC), 11 km (7 mi) below the surface.

A larger quake followed: M2.9 2 km ENE of Oak Bay, Canada. This one was a foreshock.

Blaine 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
1.7 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1989-09-20 01:43:06 UTC
Depth
11.3 km (7.0 mi), shallow
Epicenter
48.991° N, 122.684° 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 1.6 km horizontally, 2.5 km in depth
Magnitude uncertainty
±0.06
Depth from
From location
Station coverage gap
274°, poorly surrounded by stations
Stations used
9

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 7 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 2.36 km W of Lake Cavanaugh, Washington · 13524 days ago · 10 km deep · 86 km away
  2. 2.26 km W of Lake Cavanaugh, Washington · 13523 days ago · 12 km deep · 86 km away
  3. 1.71 km WNW of Anacortes, Washington · 13512 days ago · 10 km deep · 52 km away
  4. 2.227 km ENE of Squamish, Canada · 13501 days ago · 3 km deep · 88 km away
  5. 2.92 km ENE of Oak Bay, Canada · 13501 days ago · 23 km deep · 73 km away
  6. 2.811 km E of Fairwinds, Canada · 13499 days ago · 62 km deep · 99 km away
  7. 1.97 km S of Bellingham, Washington · 13497 days ago · -1 km deep · 36 km away

Before

  1. 1.78 km NNW of Orcas, Washington · 13537 days ago · 18 km deep · 44 km away
  2. 2.33 km NW of Acme, Washington · 13543 days ago · -1 km deep · 43 km away
  3. 2.06 km SW of Bay View, Washington · 13545 days ago · 24 km deep · 62 km away
  4. 1.518 km SSE of Glacier, Washington · 13547 days ago · 23 km deep · 69 km away
  5. 2.019 km SSE of Glacier, Washington · 13548 days ago · 18 km deep · 70 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10249513. Read Thu, Oct 1, 2026, 6:33 AM UTC.