Navigational warnings, week 2026-W30
2026-07-20 to 2026-07-26 UTC
- issued
- 37
- cancelled
- 12
- in force at end
- 800
- of these still in force
- 17
Coverage note: the NGA archive ends 2024-05 and live collection began 2026-08-17. Warnings issued in between are here only if they were still in force when collection started, so this period is under-counted.
Issued · by sea
| North Pacific Ocean | 9 |
| North Atlantic Ocean | 6 |
| North Sea | 3 |
| Indian Ocean | 2 |
| Bering Sea | 2 |
| South China Sea | 2 |
| Arabian Sea | 2 |
| South Pacific Ocean | 2 |
HYDROPAC 8 · USGS earthquakes 7 · NAVAREA IV 5 · NOAA IncidentNews 4 · UKWZ 4 · NAVAREA XII 3 · HYDROLANT 2 · NAVAREA XI 2 · AUSCOAST 1 · HYDROARC 1
Issued · 37
- Quakes · USGS-US7000T21305:38ZEarthquake magnitude 5.5 (mww) in 56.664S 142.018W, depth 10 km at 200538Z jul 26Pacific-antarctic Ridge
- Quakes · USGS-US7000T1W206:41Z214 km sw of port mcneill, canada
- Surveys · NAVAREA IV 705/26in force20:16ZSurvey operations are underway until 31 December near Guyana by vessel AHT DN87 and tug TELESTO; wide berth requested.North Atlantic · Guyana
- Quakes · USGS-US7000T21Z21:28ZEarthquake magnitude 5.6 (mww) in 14.546N 044.993W, depth 10 km at 202128Z jul 26Northern Mid-atlantic Ridge
- Other · HYDROPAC 2089/2608:48ZA fish aggregating device is temporarily anchored at 26-36.55S 153-30.16E in the Coral Sea, Australia, as of 21 July 05:06 UTC.Coral Sea · Australia
- Nav aids · NAVAREA XI 328/26in force12:00ZThe Number 1 lighted buoy at Malakal Harbor in the West Carolines, North Pacific, at 07-19.17N 134-27.17E, is missing.North Pacific, West Carolines
- Derelicts · HYDROPAC 2092/26in force12:02ZThe derelict vessel Al Jafzia is aground in the Arabian Sea off India at 19-11N 072-46E.Arabian Sea · India
- Quakes · USGS-US7000T25Y12:14ZEarthquake magnitude 5.6 (mww) in 29.288S 176.958W, depth 20 km at 211214Z jul 26Kermadec Islands Region
- Exercises · HYDROPAC 2169/26in force14:56ZPakistan conducts hazardous operations in the Arabian Sea on August 3-7, 10-14, 17-21, 24-28, and 31, from 0300 to 1900Z daily.Arabian Sea · Pakistan
- Other · UKWZ 453/26in force15:35ZThe Wave Hub NW buoy near Lundy, northwest of Saint Ives, has its Automatic Identification System inoperative at 50-23.1N 005-38.2W.Lundy
- Surveys · NAVAREA IV 708/2617:39ZSurvey operations by vessel FUGRO DISCOVERY in North Atlantic off Virginia from July 23 to August 26, wide berth requested.North Atlantic · Virginia
- Cable ops · NAVAREA XI 329/26in force18:00ZCable ship Ile de Re is laying submarine cable in the Taiwan Strait until further notice.Taiwan Strait
- Wrecks · NAVAREA IV 709/26in force19:51ZMotor vessel Barima is sunk in the North Atlantic off Guyana at 07 degrees 28.23 minutes north, 58 degrees 23.40 minutes west.North Atlantic · Guyana
- Cable ops · HYDROPAC 2099/26in force20:56ZCable operations are underway in the East China Sea by the cableship ILE DE RE until further notice; wide berth requested.East China Sea · China
- Spills · NOAAORR-1118900:00ZAdak, ak, USATarballs On Palisades Beach; Adak Island, Alaska
- Cable ops · HYDROPAC 2100/2600:23ZCable operations are underway until further notice by cableship Subaru near a trackline joining 36-44.60N 140-45.20E to 35-04.90N 156-51.80E off Japan; wide berth requested.North Pacific · Japan
- Nav aids · HYDROLANT 1407/26in force00:53ZThe radiobeacon at Chui Light, Brazil, is off air until 17 Jan 27.South Atlantic · Brazil
- Nav aids · UKWZ 455/26in force18:06ZIn the Forties, in the Britannia Gas Field, Platform 16/26 at 58-02.9N 001-08.3E has its Automatic Identification System inoperative.Forties
- Spills · NOAAORR-1119000:00ZOn july 20, 2026, the canadian ice service (cis), using a radar satellite constellation, detected an anomaly…Anomaly In Norton Sound; Stebbins, Alaska · Stebbins, Ak
- Spills · NOAAORR-1119100:00ZOn july 23, 2026, the U.SSheen In Silver Bay; Sitka, Alaska · Sitka, Ak
- Nav aids · HYDROLANT 1421/2617:03ZSidi Ifini lighthouse in Morocco, at 29-22.50N 010-10.70W, is unlit.Morocco
- Exercises · NAVAREA XII 511/26in force20:12ZHazardous operations are occurring from August 1 to September 1 in the North Pacific off California.North Pacific · California
- Exercises · NAVAREA XII 510/26in force20:19ZHazardous operations are underway off the coast of California from August 1 to September 1.North Pacific · California
- Exercises · NAVAREA XII 512/26in force20:23ZHazardous operations are scheduled off the California coast in the North Pacific from August 1 to September 1.North Pacific · California
- Quakes · USGS-US7000T2W322:58Z131 km w of ternate, indonesia
- Spills · NOAAORR-1119200:00ZSatellite image anomaly off prince of wales island; gulf of alaska, alaska
- Nav aids · AUSCOAST 253/2601:13ZCliff Head Platform light in position 29-26.99S 114-52.18E is unlit.
- Nav aids · HYDROPAC 2115/2601:58ZCliff Head platform at 29-26.99S 114-52.18E is unlit; the Hydropac warning 2088/26 is canceled.Eastern Indian Ocean · Australia
- Nav aids · UKWZ 459/26in force05:05ZAt Sofia Offshore Wind Farm in Dogger, buoys N1 and E5 are unlit at 55-08.1N 002-09.5E and 54-51.5N 002-20.7E, and warning 374/26 is cancelled.Dogger
- Surveys · HYDROPAC 2124/2613:35ZSubmersible survey operations are in areas near 22-40N 154-30E and 22-30N 153-45E in the North Pacific from July 25 to August 15; wide berth requested.North Pacific
- Quakes · USGS-US7000T37A21:37Z63 km wsw of sola, vanuatu
- Nav aids · UKWZ 462/26in force05:32ZPlatform 49/27-ED at 53-03.6N 002-12.6E in Leman Gas Field is unlit and all navigational aids inoperative. Cancels warning 376/26.Humber
- Quakes · USGS-US7000T3FM08:35Z103 km se of atka, alaska
- Other · HYDROARC 149/26in force09:05ZA tide gauge is established at 15 meters depth in Kara Sea, Russia at 73-08.24N 080-26.79E, wide berth requested.Kara Sea · Russia
- Nav aids · NAVAREA IV 727/2615:15ZA cable buoy is established at position 12 degrees 28 minutes north, 69 degrees 45 minutes west in the Caribbean Sea off Venezuela.Caribbean Sea · Venezuela
- Nav aids · HYDROPAC 2144/26in force15:30ZA mooring buoy has been established at 26-38.47N 051-55.82E in the Persian Gulf.Qatar · Persian Gulf
- Cable ops · NAVAREA IV 729/2623:11ZCable operations by cableship Pierre de Fermat are in progress until 25 August between Aruba and Florida; wide berth requested.Caribbean Sea · North Atlantic
Cancelled · 12
- Quakes · USGS-US7000T1BU14:48Z60 km wsw of puerto madero, mexico
- Quakes · USGS-US7000T1CC15:20Z96 km sw of puerto madero, mexico
- Quakes · USGS-US7000T1N517:26Z71 km sw of puerto madero, mexico
- Quakes · USGS-US7000T1NG19:50ZEarthquake magnitude 5.5 (mww) in 60.769S 051.083W, depth 10 km at 181950Z jul 26Scotia Sea
- Quakes · USGS-US7000T1TP17:45Z77 km sw of puerto madero, mexico
- Spills · NOAAORR-1118300:00ZCoast guard pier; new haven, connecticutCreosote Leak At U.S
- Quakes · USGS-US7000T21305:38ZEarthquake magnitude 5.5 (mww) in 56.664S 142.018W, depth 10 km at 200538Z jul 26Pacific-antarctic Ridge
- Quakes · USGS-US7000T1W206:41Z214 km sw of port mcneill, canada
- Quakes · USGS-US7000T21Z21:28ZEarthquake magnitude 5.6 (mww) in 14.546N 044.993W, depth 10 km at 202128Z jul 26Northern Mid-atlantic Ridge
- Spills · NOAAORR-1118400:00ZMystery oiled shoreline at holly beach; cameron parish, louisiana
- Quakes · USGS-US7000T25Y12:14ZEarthquake magnitude 5.6 (mww) in 29.288S 176.958W, depth 20 km at 211214Z jul 26Kermadec Islands Region
- Quakes · USGS-US7000T2W322:58Z131 km w of ternate, indonesia
Not for navigation. Counts include only warnings we display; ongoing search-and-rescue traffic is excluded until 30 days after it closes.