Washington earthquakes

M2.0 earthquake Washington

A magnitude 2.0 earthquake struck in Washington on Mon, May 9, 1977, 4:50 PM PDT (23:50 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M2.4 20 km NNE of Index, Washington. This one was a foreshock.

Entiat 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
2.0 (md), micro
Local time
UTC
1977-05-09 23:50:43 UTC
Depth
0.2 km (0.1 mi), shallow
Epicenter
47.721° N, 120.212° 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 0.8 km horizontally
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
183°, poorly surrounded by stations
Stations used
5

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 4 in the 30 days before it.

After

  1. 1.64 km NW of Waterville, Washington · 18035 days ago · 0 km deep · 9 km away
  2. 2.112 km SSW of Kittitas, Washington · 18033 days ago · 13 km deep · 95 km away
  3. 1.510 km WSW of Entiat, Washington · 18030 days ago · 0 km deep · 12 km away
  4. 1.78 km SSW of Chelan Falls, Washington · 18023 days ago · 3 km deep · 14 km away
  5. 1.712 km W of Entiat, Washington · 18020 days ago · 0 km deep · 14 km away
  6. 2.420 km NNE of Index, Washington · 18009 days ago · 4 km deep · 99 km away
  7. 1.70 km SSW of Entiat, Washington · 18004 days ago · 0 km deep · 5 km away
  8. 2.37 km N of Quincy, Washington · 17997 days ago · 0 km deep · 53 km away
  9. 2.35 km NNE of Waterville, Washington · 17993 days ago · 0 km deep · 14 km away

Before

  1. 2.10 km SW of Waterville, Washington · 18039 days ago · 0 km deep · 13 km away
  2. 1.55 km SSW of Chelan Falls, Washington · 18040 days ago · 4 km deep · 15 km away
  3. 1.77 km SE of Rock Island, Washington · 18047 days ago · 0 km deep · 45 km away
  4. 1.85 km W of Entiat, Washington · 18054 days ago · 0 km deep · 7 km away

Earthquakes todayWashington earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10843633. Read Sat, Sep 26, 2026, 9:44 PM UTC.