Spills

Cook inlet, alaska

M/V Atlantic Seahorse; Cook Inlet, Alaska · NOAAORR-6829

issued
1991-08-14 00:00Z
status
cancelled 1991-08-28 00:00Z
self-cancels
1991-08-28 00:00Z
authority
NOAA OR&R
sea
Gulf of Alaska
position
61.097, -150.480
vessel
M/V ATLANTIC SEAHORSE
source
incidentnews · first seen 2026-09-03 15:09Z

Original warning text

M/V ATLANTIC SEAHORSE; Cook Inlet, Alaska.
Cook Inlet, Alaska.
1. On August 13, 1991, a work boat, 210-foot motor vessel ATLANTIC SEAHORSE under contract to ARCO Alaska Inc. crashed the Glomar Adriatic 8 drilling rig, ruptured a fuel tank, and spilled approximately 4,000 gallons of diesel fuel into the water. The collision occurred approximately 4 miles offshore of the North Forelands in Upper Cook Inlet. With fuel leaking from her ruptured fuel tank, the ATLANTIC SEAHORSE was pinned against the drilling rig by heavy tidal currents for about 90 minutes. Cook Inlet Spill Prevention and Response, Inc. (CISPRI), the area cleanup cooperative, arrived and began skimming the surface and laying down containment boom and absorbent materials. The spill at this point was described as a light sheen on the surface measuring about 2 miles long and 250 yards wide. USCG district 17.
2. COMMODITY: DIESEL. MAXIMUM POTENTIAL RELEASE: 4000 GALLONS.
3. POSITION 61.097N 150.480W. NOAA INCIDENTNEWS 6829: https://incidentnews.noaa.gov/incident/6829

This area · spills & pollution incidents

108 within 180 nm since 1985 · 5 in the last 12 months · 1 in force now

85
90
95
00
05
10
15
20
25
26

Season · when spills & pollution incidents happen here

J
F
M
A
M
J
J
A
S
O
N
D

month of issue, all years in the archive

Nearby now · within 120 nm

Worldwide now

8 spills & pollution incidents in force · see all

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.