Sea Ledger, February 2010

2010-02-01 to 2010-02-28 · archive

issued: 338
warning-days in force: 6,908
in force at month end: 286
sea × type cells: 173

baseline: same month, previous 5 years (2009-02, 2008-02, 2007-02, 2006-02, 2005-02)

By type

type	issued	warning-days	in force at end
Quakes	72	153.9	46
Exercises	60	618.8	17
Incidents	49	804	27
Cable ops	47	1,047.1	41
Nav aids	44	1,193.6	43
Missiles	20	138.4	6
Derelicts	10	25.3	2
Other	7	293.9	9
Piracy	7	147	1
Surveys	6	1,843.4	67
Icebergs	3	8.9	0
Containers	3	8.8	2
Spills	2	62	3
Ordnance	2	113.5	6
Wrecks	2	385.1	14
Debris	2	48.6	1
Volcanic	2	10	1
Towing	0	5.4	0

By sea and type · 173 cells, most issued first

cell	issued	warning-days	at end	longest d	vs 5 y
Quakes · South Pacific Oceansurge	51	95.8	39	30	5.1× / 10
Cable ops · South Atlantic Oceanlong running	18	244.3	9	477	1.0× / 18.2
Nav aids · North Seasurge	14	182.6	6	353	3.0× / 4.6
Incidents · North Atlantic Oceansurge	13	288.2	8	57	5.9× / 2.2
Exercises · North Pacific Ocean	12	62	1	33	1.1× / 10.4
Incidents · North Pacific Ocean	9	153	5	52	1.7× / 5.2
Incidents · South Atlantic Ocean	9	56.3	4	37	1.9× / 4.8
Exercises · Bay of Bengal	7	100.1	0	—	1.1× / 6.2
Missiles · North Pacific Ocean	6	64.1	2	28	1.4× / 4.4
Incidents · South China Seasurge	5	85.6	2	39	2.3× / 2.2
Exercises · Arabian Sea	5	67	2	28	1.5× / 3.4
Piracy · Gulf of Adensurge	5	57.1	0	—	25× / 0.2
Exercises · Japan Sea	5	39.5	1	32	1.8× / 2.8
Exercises · Gulf of Mexicosurge	5	32.1	0	—	13× / 0.4
Missiles · Indian Oceannew	5	21.6	2	26	new / 0
Cable ops · North Atlantic Ocean	5	20.5	1	19	1.5× / 3.4
Missiles · North Atlantic Oceannew	5	15.6	1	24	new / 0
Quakes · North Pacific Ocean	5	14.1	1	30	1.5× / 3.4
Quakes · Philippine Sea	5	12.8	4	21	1.1× / 4.4
Nav aids · North Atlantic Oceanlong running	4	81.4	4	365	1.3× / 3.2
Cable ops · South China Seasurge	4	61.1	2	25	6.7× / 0.6
Exercises · Laccadive Sea	4	38.4	1	36	0.7× / 5.8
Exercises · Yellow Sea	4	33.8	1	32	1.2× / 3.4
Exercises · South Atlantic Ocean	4	29.6	1	11	1.3× / 3.2
Nav aids · Gulf of Mexicosurge	4	8.9	0	—	4.0× / 1
Nav aids · South Atlantic Oceanlong running	3	324.7	10	831	1.4× / 2.2
Cable ops · Arabian Sea	3	46.5	3	50	0.9× / 3.4
Exercises · Indian Oceannew	3	12	2	19	new / 0
Nav aids · Gulf of Alaska	3	3.1	2	15	1.7× / 1.8
Nav aids · Irish Sea and St. George's Channellong running	2	166.1	6	497	1.0× / 2
Nav aids · South Pacific Ocean	2	80.4	3	45	1.3× / 1.6
Incidents · Caribbean Sea	2	68.7	3	31	5.0× / 0.4
Nav aids · Celtic Sea	2	37.7	1	90	1.0× / 2
Cable ops · Bay of Bengal	2	35	2	39	0.9× / 2.2
Missiles · Arabian Seanew	2	26	0	—	new / 0
Exercises · South China Sea	2	25.1	1	32	2.5× / 0.8
Cable ops · Laccadive Sea	2	24.9	2	18	3.3× / 0.6
Volcanic · Philippine Sea	2	10	1	295	2.0× / 1
Incidents · South Pacific Ocean	2	9	0	—	0.3× / 7.2
Other · North Atlantic Ocean	2	8.5	0	—	3.3× / 0.6
Cable ops · Mozambique Channelnew	2	7.5	1	16	new / 0
Incidents · Davis Straitnew	2	7.1	1	14	new / 0
Incidents · Indian Ocean	2	7.1	0	—	0.8× / 2.4
Exercises · South Pacific Ocean	2	6.4	0	—	1.3× / 1.6
Derelicts · Indian Ocean	2	6	0	—	3.3× / 0.6
Quakes · Indian Ocean	2	6	0	—	0.4× / 5.2
Quakes · Solomon Sea	2	6	0	—	1.1× / 1.8
Quakes · South Atlantic Ocean	2	6	1	17	1.1× / 1.8
Icebergs · Southern Ocean	2	5.9	0	—	1.1× / 1.8
Piracy · South China Seanew	2	5.1	0	—	new / 0
Containers · Caribbean Seanew	2	5	2	2	new / 0
Nav aids · North Pacific Ocean	2	4.6	0	—	5.0× / 0.4
Nav aids · Bass Strait	2	3.4	0	—	5.0× / 0.4
Derelicts · Tasman Sea	2	2.5	1	2	10× / 0.2
Cable ops · Gulf of Mexico	1	140	5	121	2.5× / 0.4
Exercises · Aegean Sea	1	88.8	3	60	0.5× / 2
Nav aids · English Channel	1	85	4	318	0.3× / 3.4
Surveys · South Atlantic Ocean	1	65	2	234	0.7× / 1.4
Incidents · Gulf of Mexico	1	61.8	3	42	new / 0
Nav aids · Coral Sealong running	1	58.9	2	726	0.4× / 2.6
Ordnance · Gulf of Aden	1	56.7	3	349	new / 0
Surveys · Irish Sea and St. George's Channel	1	56	2	111	5.0× / 0.2
Surveys · Gulf of Guinea	1	43.9	2	57	5.0× / 0.2
Exercises · North Atlantic Ocean	1	34	1	30	0.3× / 3.8
Cable ops · South Pacific Ocean	1	31.6	2	54	2.5× / 0.4
Exercises · Philippine Sea	1	27.1	1	32	0.6× / 1.8
Cable ops · Mediterranean Sea - Western Basin	1	26.4	1	181	0.8× / 1.2
Cable ops · Malacca Strait	1	25	0	—	new / 0
Cable ops · Singapore Strait	1	23.4	1	41	5.0× / 0.2
Spills · North Atlantic Ocean	1	22	1	41	0.3× / 3.2
Wrecks · Celtic Sea	1	19.2	1	19	new / 0
Nav aids · Bay of Bengal	1	18.7	0	—	1.7× / 0.6
Debris · Philippine Sea	1	18	0	—	new / 0
Other · Celtic Sea	1	17.4	1	17	5.0× / 0.2
Cable ops · Mediterranean Sea - Eastern Basin	1	15.5	0	—	0.3× / 3.2
Surveys · Laccadive Sea	1	15.2	1	15	5.0× / 0.2
Exercises · Gulf of California	1	14.6	0	—	new / 0
Cable ops · Gulf of Suez	1	10.9	1	10	2.5× / 0.4
Other · South Pacific Ocean	1	8.5	0	—	5.0× / 0.2
Missiles · South Atlantic Ocean	1	7.3	0	—	new / 0
Spills · The Coastal Waters of Southeast Alaska and British Columbia	1	7	1	7	1.7× / 0.6
Surveys · Philippine Sea	1	6.7	0	—	new / 0
Cable ops · English Channel	1	6.5	0	—	1.3× / 0.8
Cable ops · Aegean Sea	1	6.2	0	—	new / 0
Nav aids · Eastern China Sea	1	5	1	4	new / 0
Exercises · North Sea	1	5	0	—	new / 0
Incidents · Celtic Sea	1	4.9	1	4	new / 0
Cable ops · Red Sea	1	4.9	1	4	2.5× / 0.4
Surveys · Caribbean Sea	1	4.6	1	4	2.5× / 0.4
Nav aids · Indian Ocean	1	4.6	0	—	1.0× / 1
Nav aids · Great Australian Bight	1	4.1	0	—	1.3× / 0.8
Missiles · Bay of Bengal	1	3.8	1	3	new / 0
Exercises · Baltic Sea	1	3	1	3	0.8× / 1.2
Quakes · Banda Sea	1	3	0	—	1.3× / 0.8
Containers · Coral Sea	1	3	0	—	new / 0
Quakes · Coral Sea	1	3	0	—	0.8× / 1.2
Quakes · Japan Sea	1	3	0	—	new / 0
Quakes · Mediterranean Sea - Eastern Basin	1	3	0	—	2.5× / 0.4
Derelicts · North Pacific Ocean	1	3	0	—	1.7× / 0.6
Derelicts · South Atlantic Ocean	1	3	0	—	0.8× / 1.2
Icebergs · South Atlantic Ocean	1	3	0	—	0.2× / 4.6
Derelicts · South China Sea	1	3	0	—	5.0× / 0.2
Derelicts · Timor Sea	1	3	0	—	new / 0
Incidents · Coral Sea	1	2.7	0	—	0.4× / 2.4
Debris · Coral Sea	1	2.6	0	—	new / 0
Other · North Sea	1	2.1	0	—	0.8× / 1.2
Wrecks · Caribbean Sea	1	1.9	0	—	new / 0
Derelicts · Arabian Sea	1	1.5	1	1	2.5× / 0.4
Cable ops · Indian Ocean	1	1.5	1	1	1.0× / 1
Other · Tasman Sea	1	1.3	0	—	new / 0
Quakes · North Atlantic Ocean	1	1.2	1	1	1.3× / 0.8
Derelicts · Philippine Sea	1	0.9	0	—	new / 0
Incidents · Philippine Sea	1	0.9	0	—	0.3× / 3.2
Ordnance · Mediterranean Sea - Eastern Basin	1	0.8	1	51	new / 0
Incidents · Tasman Sea	1	0.5	0	—	0.6× / 1.6
Exercises · Caribbean Sea	1	0.3	1	0	new / 0
Other · Davis Strait	1	0.2	0	—	new / 0
Surveys · Beaufort Sealong running	0	644	23	2,243	— / 0
Surveys · Arctic Oceanlong running	0	420	15	2,243	— / 0
Surveys · Baffin Baylong running	0	140	5	2,341	— / 0
Surveys · The Northwestern Passageslong running	0	140	5	1,226	— / 0
Surveys · Laptev Sealong running	0	84	3	1,377	— / 0
Other · Mediterranean Sea - Eastern Basin	0	84	3	188	0.0× / 0.2
Wrecks · South China Sealong running	0	84	3	949	— / 0
Wrecks · The Northwestern Passageslong running	0	84	3	540	— / 0
Cable ops · Gulf of Guinea	0	79.4	2	49	0.0× / 0.8
Wrecks · Arabian Sea	0	56	2	77	— / 0
Wrecks · North Atlantic Oceanlong running	0	56	2	642	0.0× / 0.2
Cable ops · North Pacific Ocean	0	56	2	31	— / 0
Cable ops · Ceram Sea	0	54	1	88	— / 0
Piracy · Arabian Sea	0	31.9	0	—	0.0× / 0.2
Other · Adriatic Sea	0	28	1	80	— / 0
Nav aids · Arabian Sea	0	28	1	74	0.0× / 1.2
Debris · Arctic Oceanlong running	0	28	1	1,895	— / 0
Other · Arctic Oceanlong running	0	28	1	908	— / 0
Wrecks · Bay of Bengallong running	0	28	1	373	0.0× / 0.2
Surveys · Bering Sealong running	0	28	1	500	— / 0
Other · Bismarck Sealong running	0	28	1	438	— / 0
Cable ops · Caribbean Sea	0	28	1	73	0.0× / 1.2
Spills · Caribbean Sea	0	28	1	46	— / 0
Surveys · Chukchi Sealong running	0	28	1	1,776	— / 0
Other · Coral Sealong running	0	28	1	465	— / 0
Surveys · Greenland Sealong running	0	28	1	2,559	— / 0
Nav aids · Gulf of Suezlong running	0	28	1	422	— / 0
Wrecks · Inner Seas off the West Coast of Scotland	0	28	1	135	— / 0
Ordnance · Ionian Sea	0	28	1	28	— / 0
Cable ops · Java Sea	0	28	1	129	— / 0
Nav aids · Malacca Strait	0	28	1	58	0.0× / 0.2
Surveys · Malacca Straitlong running	0	28	1	572	— / 0
Surveys · North Pacific Ocean	0	28	1	53	— / 0
Ordnance · North Sealong running	0	28	1	485	0.0× / 0.2
Cable ops · Persian Gulf	0	28	1	167	0.0× / 1.2
Piracy · Persian Gulflong running	0	28	1	781	0.0× / 0.4
Wrecks · Persian Gulflong running	0	28	1	471	0.0× / 1
Nav aids · Sea of Okhotsk	0	28	1	235	— / 0
Other · South China Sealong running	0	28	1	592	— / 0
Surveys · Sulu Sea	0	28	1	68	— / 0
Surveys · Tasman Sea	0	28	1	95	0.0× / 0.2
Surveys · Timor Sea	0	28	1	229	0.0× / 0.2
Cable ops · Yellow Sea	0	28	1	50	— / 0
Incidents · Arabian Sea	0	26.4	0	—	0.0× / 0.8
Piracy · Indian Ocean	0	24.9	0	—	— / 0
Other · Great Australian Bight	0	19.4	0	—	— / 0
Incidents · Sea of Okhotsk	0	19.4	0	—	— / 0
Cable ops · Halmahera Sea	0	14	0	—	— / 0
Other · Indian Ocean	0	12.5	0	—	0.0× / 0.2
Incidents · Baffin Bay	0	12.4	0	—	— / 0
Nav aids · Gulf of California	0	12.4	0	—	— / 0
Towing · Laccadive Sea	0	5.4	0	—	— / 0
Spills · Gulf of Mexico	0	5	0	—	0.0× / 4.8
Derelicts · Ionian Sea	0	2.4	0	—	— / 0
Containers · North Atlantic Ocean	0	0.8	0	—	0.0× / 4
Other · South Atlantic Ocean	0	0	0	—	0.0× / 2

Cite: seahazards.com Sea Ledger, 2010-02, 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.