Spills

On sunday, december 2, 1990, 100 miles off puget sound, washington, the tanker vessel keystone canyon,…

T/v Keystone Canyon; Central California · Central California · NOAAORR-6775

issued
1990-12-04 00:00Z
status
cancelled 1990-12-18 00:00Z
self-cancels
1990-12-18 00:00Z
authority
NOAA OR&R
sea
North Pacific Ocean
position
43.796, -126.770
source
incidentnews · first seen 2026-09-03 15:09Z

Original warning text

T/V KEYSTONE CANYON; Central California.
Central California.
1. On Sunday, December 2, 1990, 100 miles off Puget Sound, Washington, the tanker vessel KEYSTONE CANYON, carrying 859,000 barrels of Alaska North Slope crude oil, discovered a 20-foot vertical hull fracture near her #3 segregated ballast tank. No oil had spilled and immediate measures were taken to reduce flooding and dewater the tank. The captain of the ship reported the fracture to the U.S. Coast Guard Marine Safety Office (MSO), San Francisco on December 3. The KEYSTONE CANYON planned to rendezvous with a salvage/diving tug and a lightering tanker 120 miles off San Francisco. USCG district 11.
2. COMMODITY: ALASKA NORTH SLOPE CRUDE OIL. MAXIMUM POTENTIAL RELEASE: 36100000 GALLONS.
3. POSITION 43.796N 126.770W. NOAA INCIDENTNEWS 6775: https://incidentnews.noaa.gov/incident/6775

This area · spills & pollution incidents

74 within 180 nm since 1990 · 2 in the last 12 months · 0 in force now

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Nothing else in force within 120 nm.

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Spills

Oil and chemical spills, groundings and vessel casualties with a pollution threat: NOAA IncidentNews responses since 1957, and spill-response areas broadcast as navigational warnings. All current spills & pollution incidents

Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.