Sea Ledger, June 2024

2024-06-01 to 2024-06-30 · gap

issued
83
warning-days in force
11,954
in force at month end
414
sea × type cells
145

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.

baseline: same month, previous 5 years — not available for this month (needs three fully collected reference months)

By type

typeissuedwarning-daysin force at end
Quakes31127.75
Nav aids155,020.8171
Spills122859
Cable ops973130
Surveys61,99167
Missiles4118.26
Wrecks31,681.958
Other1911.731
Incidents1241
Icebergs111.21
Mines01204
Exercises0211.17
Restricted0301
Derelicts0602
Towing0602
Debris0301
War risk0602
Structures0301
Volcanic036012
Ordnance0903

By sea and type · 145 cells, most issued first

cellissuedwarning-daysvs 5 y
Quakes · South Pacific Ocean1133.6
Cable ops · North Atlantic Ocean7154.3
Quakes · South Atlantic Ocean515.7
Missiles · North Atlantic Ocean458.1
Spills · North Pacific Ocean456
Nav aids · South Atlantic Oceanlong running31,012.6
Nav aids · North Pacific Oceanlong running3199.5
Nav aids · Caribbean Sealong running21,071.3
Nav aids · North Atlantic Oceanlong running2446.8
Surveys · North Atlantic Ocean2270.2
Nav aids · Gulf of Mexicolong running2264
Cable ops · Persian Gulflong running2143.7
Nav aids · Arabian Sealong running2112
Spills · North Atlantic Oceanlong running275
Surveys · Caribbean Sea271.5
Spills · Gulf of Mexico243
Quakes · Coral Sea236
Spills · The Coastal Waters of Southeast Alaska and British Columbia224
Quakes · Indian Ocean28.7
Quakes · North Atlantic Ocean26
Other · Gulf of Mexico1251.7
Wrecks · North Atlantic Ocean1152
Nav aids · Andaman or Burma Sealong running1144.6
Wrecks · South Atlantic Ocean1135.9
Wrecks · North Pacific Oceanlong running144
Incidents · North Atlantic Ocean124
Surveys · Sea of Okhotsk119.1
Spills · Bering Sea114
Spills · Gulf of Alaska113
Icebergs · Labrador Sea111.2
Quakes · Philippine Sea13.7
Quakes · Bay of Bengal13
Quakes · Caribbean Sea13
Quakes · Japan Sea13
Quakes · Molukka Sea13
Quakes · North Pacific Ocean13
Quakes · Sea of Okhotsk13
Quakes · Solomon Sea13
Quakes · Southern Ocean13
Surveys · Black Sea12.4
Nav aids · South Pacific Oceanlong running0330
Volcanic · Philippine Sealong running0300
Wrecks · Arabian Sealong running0240
Other · Caribbean Sealong running0210
Surveys · Indian Oceanlong running0210
Surveys · South Pacific Ocean0210
Surveys · The Northwestern Passageslong running0210
Wrecks · Persian Gulflong running0180
Surveys · South Atlantic Ocean0180
Nav aids · South China Sea0180
Wrecks · The Northwestern Passageslong running0180
Mines · Black Sealong running0120
Wrecks · Caribbean Sealong running0120
Nav aids · English Channel0120
Exercises · Aegean Sea090
Surveys · Arctic Ocean090
Nav aids · Bay of Biscaylong running090
Ordnance · Bay of Biscaylong running090
Nav aids · Beaufort Sealong running090
Nav aids · Bering Sealong running090
Nav aids · Celtic Sea090
Nav aids · Indian Ocean090
Surveys · Persian Gulflong running090
Cable ops · Philippine Sea090
Wrecks · South China Sealong running090
Wrecks · South Pacific Oceanlong running090
Surveys · Timor Sea090
Nav aids · Arafura Sea060
Wrecks · Bay of Bengal060
Other · Bay of Biscaylong running060
Exercises · Black Sealong running060
War risk · Black Sealong running060
Spills · Caribbean Sea060
Surveys · Chukchi Sea060
Wrecks · Coral Sealong running060
Nav aids · Gulf of Alaska060
Nav aids · Hudson Strait060
Cable ops · Indian Ocean060
Other · Indian Ocean060
Nav aids · Irish Sea and St. George's Channel060
Surveys · Kara Sealong running060
Wrecks · Kara Sea060
Nav aids · Laccadive Sealong running060
Surveys · Mediterranean Sea - Western Basin060
Other · North Atlantic Ocean060
Other · North Pacific Ocean060
Towing · North Pacific Ocean060
Volcanic · North Pacific Ocean060
Nav aids · North Sea060
Nav aids · Persian Gulflong running060
Other · Persian Gulflong running060
Cable ops · Sulu Sea060
Surveys · Arabian Sea052.8
Surveys · Gulf of Mexico045
Cable ops · Celtic Sea033
Missiles · Aegean Sea030
Wrecks · Arafura Sea030
Nav aids · Arctic Ocean030
Derelicts · Bass Strait030
Surveys · Bass Strait030
Other · Bay of Bengal030
Surveys · Bay of Bengal030
Debris · Bay of Biscaylong running030
Wrecks · Bay of Biscay030
Other · Beaufort Sea030
Surveys · Beaufort Sea030
Other · Black Sea030
Cable ops · Caribbean Sea030
Exercises · Caribbean Sea030
Nav aids · Coral Sea030
Wrecks · Eastern China Sea030
Wrecks · English Channel030
Nav aids · Gulf of Californialong running030
Cable ops · Gulf of Guinea030
Exercises · Gulf of Mexico030
Wrecks · Gulf of Mexicolong running030
Nav aids · Gulf of Oman030
Wrecks · Gulf of Suez030
Wrecks · Hudson Bay030
Restricted · Indian Ocean030
Other · Irish Sea and St. George's Channel030
Surveys · Irish Sea and St. George's Channel030
Wrecks · Irish Sea and St. George's Channel030
Cable ops · Java Sea030
Surveys · Laccadive Sealong running030
Wrecks · Laccadive Sealong running030
Cable ops · Ligurian Sea030
Nav aids · Mediterranean Sea - Eastern Basinlong running030
Other · Mediterranean Sea - Eastern Basin030
Surveys · Mediterranean Sea - Eastern Basin030
Cable ops · Mediterranean Sea - Western Basin030
Structures · Mozambique Channellong running030
Derelicts · North Atlantic Ocean030
Missiles · North Pacific Oceanlong running030
Surveys · Norwegian Sea030
Nav aids · Philippine Sea030
Cable ops · South China Sea030
Surveys · South China Sea030
Nav aids · Tasman Sea030
Surveys · Tasman Sea030
Nav aids · The Coastal Waters of Southeast Alaska and British Columbialong running030
Nav aids · The Northwestern Passages030
Cable ops · North Pacific Ocean010
Exercises · North Pacific Ocean01.1
Missiles · Indian Ocean00.1

Cite: seahazards.com Sea Ledger, 2024-06, retrieved 2026-09-03

Not for navigation. Warning-days = days each warning was in force within the month, summed. Only warnings we display are counted; the ratio compares warnings issued with the mean of the reference months.

Sea Ledger, June 2024 — warnings by sea and type · seahazards