Washington earthquakes

M1.9 earthquake 9 km ENE of Tanner, Washington

A magnitude 1.9 earthquake struck 9 km ENE of Tanner, Washington on Thu, Aug 2, 1979, 4:53 PM PDT (23:53 UTC), 9 km (5 mi) below the surface.

A larger quake followed: M2.1 2 km E of Issaquah, Washington. This one was a foreshock.

Tanner forecastMore in Washington

Map

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

Open the live map with earthquakes

The earthquake

Magnitude
1.9 (md), micro
Local time
UTC
1979-08-02 23:53:14 UTC
Depth
8.8 km (5.4 mi), shallow
Epicenter
47.514° N, 121.638° 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 0.1 km horizontally, 0.4 km in depth
Magnitude uncertainty
±0.09
Depth from
Operator assigned
Station coverage gap
190°, poorly surrounded by stations
Stations used
11

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 1.77 km E of Carnation, Washington · 17212 days ago · 11 km deep · 21 km away
  2. 1.612 km NE of Snoqualmie, Washington · 17186 days ago · 13 km deep · 13 km away
  3. 2.12 km E of Issaquah, Washington · 17185 days ago · 3 km deep · 27 km away
  4. 1.6Washington · 17183 days ago · 3 km deep · 26 km away
  5. 1.92 km E of Issaquah, Washington · 17183 days ago · 3 km deep · 27 km away
  6. 2.02 km ESE of Belfair, Washington · 17181 days ago · 1 km deep · 87 km away
  7. 2.12 km ESE of Quilcene, Washington · 17178 days ago · 48 km deep · 96 km away
  8. 1.62 km NNE of Klahanie, Washington · 17176 days ago · 4 km deep · 28 km away
  9. 1.52 km E of Belfair, Washington · 17173 days ago · -1 km deep · 87 km away
  10. 2.16 km SW of Clinton, Washington · 17160 days ago · 25 km deep · 75 km away

Before

  1. 1.83 km ENE of Eastmont, Washington · 17220 days ago · 23 km deep · 58 km away
  2. 2.33 km WSW of Snohomish, Washington · 17220 days ago · 23 km deep · 57 km away
  3. 1.53 km N of Union Hill-Novelty Hill, Washington · 17222 days ago · 21 km deep · 37 km away
  4. 1.90 km SE of Union Hill-Novelty Hill, Washington · 17232 days ago · 18 km deep · 34 km away
  5. 2.36 km W of Burley, Washington · 17241 days ago · 23 km deep · 81 km away
  6. 2.510 km W of Entiat, Washington · 17245 days ago · 4 km deep · 98 km away

Earthquakes todayWashington earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10850373. Read Tue, Sep 22, 2026, 4:10 PM UTC.