Washington earthquakes

M1.9 earthquake 3 km ENE of Monroe North, Washington

A magnitude 1.9 earthquake struck 3 km ENE of Monroe North, Washington on Fri, Dec 3, 1999, 4:19 PM PST (00:19 UTC), 16 km (10 mi) below the surface.

A larger quake followed: M3.0 6 km W of Lofall, Washington. This one was a foreshock.

Monroe North 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
1.9 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
1999-12-04 00:19:45 UTC
Depth
16.0 km (10.0 mi), shallow
Epicenter
47.898° N, 121.949° 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 0.3 km horizontally, 0.3 km in depth
Magnitude uncertainty
±0.05
Depth from
From location
Station coverage gap
61°
Stations used
31

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 13 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 2.113 km W of Greenwater, Washington · 9797 days ago · 14 km deep · 82 km away
  2. 2.2Washington · 9784 days ago · 17 km deep · 80 km away
  3. 1.92 km NNE of Bonney Lake, Washington · 9783 days ago · 14 km deep · 80 km away
  4. 1.83 km W of Freeland, Washington · 9774 days ago · 50 km deep · 48 km away
  5. 1.61 km NNW of Mirrormont, Washington · 9762 days ago · 21 km deep · 47 km away
  6. 1.53 km NE of East Renton Highlands, Washington · 9757 days ago · 12 km deep · 44 km away
  7. 1.53 km NE of East Renton Highlands, Washington · 9757 days ago · 12 km deep · 45 km away
  8. 3.06 km W of Lofall, Washington · 9757 days ago · 17 km deep · 61 km away
  9. 1.93 km ENE of Bonney Lake, Washington · 9755 days ago · 14 km deep · 80 km away
  10. 2.20 km NNE of Gorst, Washington · 9754 days ago · 7 km deep · 70 km away
  11. 1.82 km ENE of Gig Harbor, Washington · 9752 days ago · 48 km deep · 77 km away
  12. 1.63 km W of Black Diamond, Washington · 9746 days ago · 11 km deep · 66 km away
  13. 2.06 km S of Swede Heaven, Washington · 9745 days ago · 11 km deep · 40 km away

Before

  1. 2.06 km SSE of Vashon, Washington · 9805 days ago · 18 km deep · 67 km away
  2. 1.551 km WSW of Twisp, Washington · 9811 days ago · 6 km deep · 94 km away
  3. 1.826 km NNE of Index, Washington · 9817 days ago · 5 km deep · 44 km away
  4. 2.52 km SW of Monroe North, Washington · 9818 days ago · 19 km deep · 5 km away
  5. 1.63 km NE of Snoqualmie, Washington · 9827 days ago · 14 km deep · 41 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10483893. Read Sat, Oct 3, 2026, 4:45 PM UTC.