North Pacific Ocean

IHO sea area 57 · -180° to 180° E, 0° to 58° N

in force
26
last 12 months
291
since 1957
17,236
categories
22

In force now · 26

  1. NAVAREA XI 403/26 · Exercises2026-09-09
    Gunnery exercise within 25 miles of 31-14-14N 144-26-48E in North Pacific, Nanpo Shoto, daily from 2100Z to 0900Z, Sep 13 to 17.
  2. NAVAREA XI 400/26 · Nav aids2026-09-07
    The Guam high-frequency NAVTEX station at 13-29.0N 144-50.0E in the Marianas, North Pacific, is off air.
  3. NOAAORR-11215 · Spills2026-09-07
    On September 7, 2026, a tanker truck carrying asphalt crashed into Trapper Slough near Stockton, California, causing an oil spill.
  4. NOAAORR-11212 · Spills2026-08-30
    On August 30, 2026, a sunken 25-foot vessel at Moss Landing, California is discharging diesel, creating a 50 by 100 yard sheen.
  5. HYDROPAC 2457/26 · Exercises2026-08-27
    Gunnery exercises occur daily from 2300Z to 0900Z, August 31 to September 29, in the North Pacific.
  6. NAVAREA XI 392/26 · Exercises2026-08-27
    Gunnery exercise daily 2300Z to 0900Z from Aug 31 to Sep 29 in North Pacific, Nanpo Shoto.
  7. NAVAREA XII 586/26 · Exercises2026-08-21
    Hazardous operations are underway off California from September 1 0800 UTC to October 1 0800 UTC in a defined area.
  8. NAVAREA XII 584/26 · Exercises2026-08-21
    Hazardous operations off California in an area bounded by 32-40N to 32-55N and 118-15W to 118-35W from September 1 to October 1.
  9. NAVAREA XII 585/26 · Exercises2026-08-21
    Hazardous operations are occurring off California in the North Pacific from September 1 to October 1 within a specified area.
  10. NAVAREA XI 328/26 · Nav aids2026-07-21
    The Number 1 lighted buoy at Malakal Harbor in the West Carolines, North Pacific, at 07-19.17N 134-27.17E, is missing.
  11. HYDROPAC 2039/26 · Volcanic2026-07-16
    Discolored water with increased likelihood of submarine volcanic activity is reported in Northern Mariana Islands vicinity at 20-26N 145-01E on July 16 at 0013Z.
  12. NAVAREA XI 322/26 · Volcanic2026-07-16
    Discoloured water reported near 20-26.0N 145-01.0E on 16 July at 0013Z; cancels warning 0020/24.
  13. HYDROPAC 1906/26 · Nav aids2026-07-03
    The United States Coast Guard's remote communication facility at Guam (13-29N 144-50E) has unreliable broadcast and communication services.
  14. NAVAREA XII 678/25 · Structures2025-10-30
    A fish farm has been established in an area off Colombia, from 06-03N to 07-11N and 077-28W to 078-08W; wide berth requested.
  15. HYDROPAC 1819/25 · Wrecks2025-07-17
    Depths between 5.4 and 18.8 meters reported at several positions in Marshall Islands, North Pacific.
  16. NAVAREA XII 392/25 · Debris2025-06-24
    Motor vessel Morning Midas is reported to have sunk in the North Pacific at 45-16.88N 179-14.13W; vessels should report oil sheens or debris to USCG.
  17. HYDROPAC 1650/25 · Debris2025-06-24
    Vessel Morning Midas sank in North Pacific at 45-16.88N 179-14.13W; navigate with caution and report debris or oil sheens.
  18. NAVAREA XII 354/25 · Nav aids2025-06-13
    Messaging services are unreliable at Coast Guard remote communication facilities at Point Reyes, Honolulu, Kodiak, Astoria, and Cambria.
  19. NAVAREA XII 338/25 · Nav aids2025-06-07
    The US Coast Guard remote communication facility at Astoria, Oregon (46-10.00N 123-49.00W), is off the air.
  20. NAVAREA XII 208/25 · Nav aids2025-04-06
    Punta Soldado light at 03-48.50N 077-10.80W is discontinued.
  21. NAVAREA XII 862/24 · Cable ops2024-10-28
    Cable operations are in progress in the eastern North Pacific near Kiribati until further notice; a 100-meter berth is requested.
  22. NAVAREA XII 441/24 · Nav aids2024-06-18
    Morro Santo Domingo light at 28-14.37N 114-06.18W is unlit.
  23. NAVAREA XII 93/23 · Missiles2023-02-28
    Periodic missile firing operations by Pacific Missile Range Facility, Barking Sands, Kauai, Hawaii, occur in Whiskey 188; vessels should contact on channel 16.
  24. NAVAREA XII 721/22 · Nav aids2022-09-27
    In El Salvador, mooring buoys at 13-35.23N 089-51.10W are unlit.
  25. NAVAREA XII 720/22 · Nav aids2022-09-27
    Buoy 16 at Puerto de La Union, El Salvador, at 13-20.36N 087-48.99W is unlit.
  26. NAVAREA XII 243/22 · Nav aids2022-04-15
    Coronado Island South Light at 32-23.5N 117-14.5W is unlit; warning 159/21 is now cancelled.

Longest in force

  1. NAVAREA XII 243/22 · Nav aids2022-04-15
    Coronado Island South Light at 32-23.5N 117-14.5W is unlit; warning 159/21 is now cancelled.
  2. NAVAREA XII 720/22 · Nav aids2022-09-27
    Buoy 16 at Puerto de La Union, El Salvador, at 13-20.36N 087-48.99W is unlit.
  3. NAVAREA XII 721/22 · Nav aids2022-09-27
    In El Salvador, mooring buoys at 13-35.23N 089-51.10W are unlit.
  4. NAVAREA XII 93/23 · Missiles2023-02-28
    Periodic missile firing operations by Pacific Missile Range Facility, Barking Sands, Kauai, Hawaii, occur in Whiskey 188; vessels should contact on channel 16.
  5. NAVAREA XII 441/24 · Nav aids2024-06-18
    Morro Santo Domingo light at 28-14.37N 114-06.18W is unlit.

By year

57
69
71
76
77
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26

By month (all years)

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

By category · since 1997

Exercises4,66527%
Incidents4,47426%
Quakes2,41614%
Missiles1,75310%
Spills7775%
Nav aids7654%
Towing5323%
Other5133%
Derelicts4773%
Cable ops2291%
Debris1641%
Surveys1481%
Ordnance1161%
Containers1131%
Wrecks370%
Storms310%
Volcanic130%
Restricted60%
Mines40%
Piracy10%
Icebergs10%
Structures10%

Archive · 17,210 cancelled

  1. NAVAREA XII 87/07 · Missiles2007-04-15 → 2007-04-22
    Intermittent missile firing operations 0001Z to 2359Z daily monday thru sunday in the naval air warfare…
  2. USGS-USP000F9RW · Quakes2007-04-15 → 2007-04-18
    Earthquake magnitude 5.5 (mwb) in 47.002N 153.435E, depth 35 km at 150412Z apr 07
  3. NAVAREA XII 86/07 · Exercises2007-04-15 → 2007-04-16
    Gunnery exercises 160800Z to 161100Z apr within 15 miles of trackline between 27-52.4N 134-27.8W and…
  4. HYDROPAC 674/07 · Exercises2007-04-14 → 2007-04-26
    Hazardous operations 1800Z to 1400Z commencing daily 18 thru 25 apr within ten miles of 16-01N 146-04E
  5. USGS-USP000F9KC · Quakes2007-04-13 → 2007-04-16
    5 km se of el paraíso, mexico
  6. HYDROPAC 655/07 · Exercises2007-04-12 → 2007-04-17
    Hazardous operations 2300Z to 0200Z commencing daily 15 and 16 apr and 0400Z to 0700Z daily 16 and 17 apr in…
  7. HYDROPAC 654/07 · Exercises2007-04-12 → 2007-04-20
    Hazardous operations 2330Z to 0230Z commencing daily 17 thru 19 apr and 0430Z to 0730Z daily 18 thru 20 apr…
  8. HYDROPAC 652/07 · Exercises2007-04-12 → 2007-04-17
    Hazardous operations 0045Z to 0300Z daily 16 and 17 apr within ten miles of 16-01N 146-04E
  9. USGS-USP000F95K · Quakes2007-04-09 → 2007-04-12
    283 km ssw of severo-kuril’sk, russia
  10. HYDROPAC 640/07 · Derelicts2007-04-09 → 2007-04-16
    Derelict F/V adrift vicinity 10-54N 151-57E at 082115Z apr 07
  11. NAVAREA XII 83/07 · Missiles2007-04-08 → 2007-04-15
    Intermittent missile firing operations 0001Z to 2359Z daily monday thru sunday in the naval air warfare…
  12. HYDROPAC 620/07 · Incidents2007-04-05 → 2007-05-26
    Canoe, six persons on board, overdue wolieai atoll (07-21N 143-52E) to ifalik atoll (07-14N 144-27E)
  13. HYDROPAC 619/07 · Exercises2007-04-05 → 2007-04-13
    Hazardous operations 2230Z to 2359Z daily 09 thru 12 apr within 216 miles of 21-55N 153-45E
  14. USGS-USP000F8TJ · Quakes2007-04-05 → 2007-04-08
    Earthquake magnitude 5.5 (mwb) in 1.507N 084.669W, depth 10 km at 052127Z apr 07
  15. HYDROPAC 610/07 · Incidents2007-04-05 → 2007-05-26
    Distress signal received on 121.5 mhz in 03-38.5N 146-08.4E at 050718Z apr
  16. HYDROPAC 607/07 · Derelicts2007-04-04 → 2007-04-11
    Derelict vessel adrift in 16-58N 149-35E at 040328Z apr
  17. USGS-USP000F8PR · Quakes2007-04-04 → 2007-04-07
    Earthquake magnitude 5.7 (mwc) in 30.926N 141.673E, depth 9 km at 042140Z apr 07
  18. HYDROPAC 603/07 · Incidents2007-04-04 → 2007-05-26
    Distress signal received on 121.5 mhz in 05-05.9N 143-02.1E at 040552Z apr
  19. HYDROPAC 596/07 · Derelicts2007-04-03 → 2007-04-04
    S/V titicaca disabled and adrift in 16-48-40N 150-13-32E
  20. HYDROPAC 591/07 · Derelicts2007-04-01 → 2007-04-06
    F/V chia sing no 6 disabled and adrift in 18-43N 152-54E

Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.