Quakes

Earthquake magnitude 6.6 (mwc) in 51.187N 178.871E, depth 20 km at 170438Z dec 97

Rat Islands, Aleutian Islands, Alaska · USGS-USP0008CS8

issued: 1997-12-17 04:38Z
status: cancelled 1997-12-20 04:38Z
self-cancels: 1997-12-20 04:38Z
authority: USGS NEIC
sea: North Pacific Ocean
position: 51.187, 178.871
source: usgs · first seen 2026-09-03 15:08Z

Original warning text

RAT ISLANDS, ALEUTIAN ISLANDS, ALASKA.
1. EARTHQUAKE MAGNITUDE 6.6 (MWC) IN 51.187N 178.871E, DEPTH 20 KM AT 170438Z DEC 97.
2. USGS EVENT USP0008CS8. https://earthquake.usgs.gov/earthquakes/eventpage/usp0008cs8

This area · earthquake & tsunami bulletins

80 within 180 nm since 1997 · 7 in the last 12 months · 0 in force now

296 km wsw of adak, alaska2026-05-09
Earthquake magnitude 6.1 (ml) in 50.981N 179.214E, depth 16 km at 090442Z may 262026-05-09
233 km ese of attu station, alaska2026-05-06
231 km ese of attu station, alaska2026-03-06
223 km ese of attu station, alaska2026-03-04
280 km ese of attu station, alaska2026-01-15

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Timeline · 3 messages since 1997-12-17 · closed 1997-12-29

Earthquake magnitude 6.6 (mwc) in 51.187N 178.871E, depth 20 km at 170438Z dec 97 this message1997-12-17 → 1997-12-20
Earthquake magnitude 5.5 (mwc) in 51.212N 178.990E, depth 33 km at 171145Z dec 971997-12-17 → 1997-12-20
Earthquake magnitude 5.6 (mwc) in 51.310N 178.802E, depth 33 km at 262118Z dec 971997-12-26 → 1997-12-29

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