North Pacific Ocean

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

in force
27
last 12 months
292
since 1957
17,237
categories
22

In force now · 27

  1. JTWC-EP1426 · Storms2026-09-12
    Tropical storm 14E (norbert)
  2. 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.
  3. 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.
  4. 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.
  5. 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.
  6. HYDROPAC 2457/26 · Exercises2026-08-27
    Gunnery exercises occur daily from 2300Z to 0900Z, August 31 to September 29, in the North Pacific.
  7. NAVAREA XI 392/26 · Exercises2026-08-27
    Gunnery exercise daily 2300Z to 0900Z from Aug 31 to Sep 29 in North Pacific, Nanpo Shoto.
  8. 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.
  9. 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.
  10. 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.
  11. 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.
  12. 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.
  13. 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.
  14. 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.
  15. 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.
  16. HYDROPAC 1819/25 · Wrecks2025-07-17
    Depths between 5.4 and 18.8 meters reported at several positions in Marshall Islands, North Pacific.
  17. 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.
  18. 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.
  19. 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.
  20. 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.
  21. NAVAREA XII 208/25 · Nav aids2025-04-06
    Punta Soldado light at 03-48.50N 077-10.80W is discontinued.
  22. 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.
  23. NAVAREA XII 441/24 · Nav aids2024-06-18
    Morro Santo Domingo light at 28-14.37N 114-06.18W is unlit.
  24. 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.
  25. NAVAREA XII 721/22 · Nav aids2022-09-27
    In El Salvador, mooring buoys at 13-35.23N 089-51.10W are unlit.
  26. 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.
  27. 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%
Storms320%
Volcanic130%
Restricted60%
Mines40%
Piracy10%
Icebergs10%
Structures10%

Archive · 17,210 cancelled

  1. HYDROPAC 2358/06 · Derelicts2006-12-02 → 2006-12-03
    19 ton F/V disabled and adrift vicinity 32-53N 146-31E at 020900Z dec
  2. HYDROPAC 2353/06 · Derelicts2006-12-02 → 2006-12-09
    Derelict 20 meter vessel adrift vicinity 03-29.9N 143-49.6E at 020430Z dec
  3. HYDROPAC 2340/06 · Incidents2006-12-01 → 2007-01-17
    Distress signals received on 243 mhz in 29-14.7N 175-50.6E, 30-11.0N 176-49.2E and 32-28.3N 175-35.9E at…
  4. HYDROPAC 2339/06 · Incidents2006-12-01 → 2007-01-17
    Man overboard from M/V rubin pearl in 50-57.7N 166-46.1E
  5. HYDROPAC 2322/06 · Containers2006-11-29 → 2006-12-06
    Numerous containers adrift within nine miles of 41-13.5N 161-08.5E at 290910Z nov
  6. HYDROPAC 2318/06 · Containers2006-11-29 → 2006-11-29
    Ten containers adrift vicinity 41-12N 161-07E at 290220Z nov
  7. HYDROPAC 2316/06 · Incidents2006-11-28 → 2007-01-10
    Distress signal received on 243 mhz vicinity 33-53-09N 153-03-10E at 281309Z nov
  8. NAVAREA XII 316/06 · Missiles2006-11-26 → 2006-12-04
    Intermittent missile firing operations 0001Z to 2359Z daily monday thru sunday in the naval air warfare…
  9. HYDROPAC 2298/06 · Exercises2006-11-26 → 2006-12-31
    Gunnery exercises 2300Z to 0900Z commencing daily 30 nov thru 30 dec in area bound by 27-55-15N 144-57-48E,…
  10. USGS-USP000EYTH · Quakes2006-11-25 → 2006-11-28
    142 km s of false pass, alaska
  11. USGS-USP000EYQF · Quakes2006-11-24 → 2006-11-27
    Earthquake magnitude 5.5 (mwb) in 46.762N 153.774E, depth 11 km at 241534Z nov 06
  12. USGS-USP000EYNE · Quakes2006-11-23 → 2006-11-26
    Earthquake magnitude 5.5 (mwc) in 47.536N 154.199E, depth 10 km at 232004Z nov 06
  13. HYDROPAC 2252/06 · Incidents2006-11-19 → 2006-11-19
    Distress signal received on 121.5 and 243 mhz vicinity 04-35.7N 135-17.4E at 191923Z nov
  14. USGS-USP000EY8Z · Quakes2006-11-19 → 2006-11-22
    Earthquake magnitude 5.5 (mwb) in 46.901N 154.891E, depth 10 km at 191516Z nov 06
  15. NAVAREA XII 309/06 · Missiles2006-11-19 → 2006-11-26
    Intermittent missile firing operations 0001Z to 2359Z daily monday thru sunday in the naval air warfare…
  16. HYDROPAC 2247/06 · Exercises2006-11-19 → 2006-11-22
    Hazardous operations 0250Z to 0430Z daily 20 thru 22 nov within ten miles of 16-01N 146-04E
  17. USGS-USP000EY85 · Quakes2006-11-19 → 2006-11-22
    67 km sw of cuyutlán, mexico
  18. USGS-USP000EY4E · Quakes2006-11-18 → 2006-11-21
    159 km wsw of masachapa, nicaragua
  19. USGS-USP000EXZ8 · Quakes2006-11-17 → 2006-11-20
    Earthquake magnitude 5.6 (mwb) in 47.017N 155.526E, depth 10 km at 170633Z nov 06
  20. USGS-USP000EXSC · Quakes2006-11-16 → 2006-11-19
    Earthquake magnitude 6.0 (mwc) in 46.358N 154.468E, depth 9 km at 160620Z nov 06

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