Sea Ledger, March 2008

2008-03-01 to 2008-03-31 · archive

issued: 313
warning-days in force: 9,692
in force at month end: 315
sea × type cells: 207

baseline: same month, previous 5 years (2007-03, 2006-03, 2005-03, 2004-03, 2003-03)

By type

type	issued	warning-days	in force at end
Nav aids	54	2,018.2	67
Cable ops	54	1,533.5	51
Incidents	50	1,316.7	43
Exercises	46	662.1	19
Quakes	36	110.9	5
Spills	15	203	6
Derelicts	13	130.9	6
Surveys	12	2,086.1	67
Other	9	380	9
Missiles	7	62	2
Icebergs	5	36.9	1
Restricted	4	87	6
Containers	4	17.3	1
Debris	3	50.2	2
Volcanic	1	195	5
Wrecks	0	703.4	22
Ordnance	0	5.4	0
Piracy	0	31	1
Structures	0	62	2

By sea and type · 200 cells, most issued first

cell	issued	warning-days	at end	longest d	vs 5 y
Cable ops · South Atlantic Ocean	16	154.7	5	107	0.8× / 21.2
Spills · Gulf of Mexicosurge	9	124	1	45	3.5× / 2.6
Nav aids · North Seasurge	9	105.7	6	84	3.2× / 2.8
Cable ops · North Atlantic Oceansurge	8	75.1	3	325	3.6× / 2.2
Exercises · North Pacific Ocean	8	57	4	36	1.3× / 6.4
Nav aids · The Coastal Waters of Southeast Alaska and British Columbiasurge	8	13.7	0	—	40× / 0.2
Missiles · North Pacific Ocean	7	62	2	58	1.5× / 4.6
Quakes · South Pacific Ocean	7	21.6	1	33	0.7× / 10.2
Incidents · South Pacific Ocean	6	194.1	6	79	0.8× / 7.6
Incidents · Philippine Sea	6	71.6	4	46	1.0× / 6.2
Incidents · Indian Ocean	6	69.2	3	75	1.4× / 4.4
Incidents · Coral Sea	6	34.5	4	20	1.8× / 3.4
Quakes · Indian Ocean	6	19	2	31	0.9× / 6.4
Quakes · North Pacific Ocean	6	18.3	0	—	1.4× / 4.2
Nav aids · Gulf of Mexicosurgelong running	5	75.2	3	959	8.3× / 0.6
Exercises · North Atlantic Ocean	5	59.9	1	58	0.7× / 7.2
Exercises · Arabian Sea	5	39.8	1	31	1.3× / 4
Exercises · Philippine Seasurge	5	33.9	1	29	3.1× / 1.6
Incidents · North Pacific Ocean	4	120	4	77	0.6× / 7.2
Exercises · Yellow Seasurge	4	74.5	2	33	2.0× / 2
Surveys · Mediterranean Sea - Eastern Basinsurge	4	51.4	3	69	2.2× / 1.8
Icebergs · South Atlantic Ocean	4	32.8	0	—	1.1× / 3.8
Exercises · South Pacific Oceansurge	4	25.4	0	—	2.9× / 1.4
Quakes · Philippine Sea	4	13.3	1	32	1.3× / 3
Cable ops · South China Seasurge	3	151.1	5	177	2.5× / 1.2
Cable ops · Bay of Bengal	3	134.9	6	132	1.1× / 2.8
Exercises · Bay of Bengal	3	84.5	2	64	0.4× / 7.6
Cable ops · Persian Gulfsurge	3	72.1	2	52	15× / 0.2
Nav aids · Celtic Seasurge	3	43.6	1	39	2.5× / 1.2
Incidents · Arafura Seasurge	3	28.6	1	29	7.5× / 0.4
Cable ops · Philippine Seasurge	3	23.9	2	38	7.5× / 0.4
Surveys · Celtic Seasurge	3	22	0	—	7.5× / 0.4
Derelicts · South Atlantic Ocean	3	16.4	0	—	0.8× / 3.8
Nav aids · English Channel	3	11.7	1	21	1.5× / 2
Nav aids · Bristol Channelnew	3	10.8	0	—	new / 0
Quakes · Bering Seanew	3	9	0	—	new / 0
Quakes · Coral Sea	3	9	0	—	1.7× / 1.8
Quakes · South China Seanew	3	8.7	1	28	new / 0
Incidents · South Atlantic Ocean	3	3.8	1	33	0.7× / 4.2
Other · English Channelnew	3	3.3	0	—	new / 0
Nav aids · North Pacific Oceannewlong running	2	554.1	17	457	new / 0
Cable ops · Mediterranean Sea - Eastern Basin	2	155.3	3	73	0.8× / 2.6
Incidents · Mediterranean Sea - Eastern Basin	2	155.3	4	57	0.6× / 3.6
Incidents · South China Sea	2	138.7	4	76	0.7× / 2.8
Nav aids · Coral Sealong running	2	104.7	3	475	0.7× / 2.8
Nav aids · Indian Oceanlong running	2	100.6	4	668	1.7× / 1.2
Surveys · South Pacific Oceannew	2	93	3	150	new / 0
Cable ops · North Pacific Ocean	2	92.7	4	126	10× / 0.2
Incidents · Tasman Sea	2	85.5	2	48	0.9× / 2.2
Incidents · North Atlantic Ocean	2	78.9	3	54	0.8× / 2.6
Exercises · Japan Sea	2	70.2	2	33	0.8× / 2.6
Exercises · Laccadive Sea	2	34.2	1	31	0.2× / 9.2
Cable ops · North Sea	2	32.8	1	35	1.3× / 1.6
Spills · North Pacific Ocean	2	30	2	42	3.3× / 0.6
Spills · The Coastal Waters of Southeast Alaska and British Columbia	2	29	1	43	10× / 0.2
Derelicts · Indian Ocean	2	17.6	2	15	1.4× / 1.4
Nav aids · Great Australian Bight	2	17.4	0	—	5.0× / 0.4
Derelicts · Tasman Sea	2	13.2	1	28	10× / 0.2
Exercises · Baltic Sea	2	10.4	0	—	3.3× / 0.6
Nav aids · Irish Sea and St. George's Channel	2	9	0	—	1.1× / 1.8
Containers · Celtic Sea	2	8.8	1	18	5.0× / 0.4
Incidents · Caribbean Seanew	2	7.9	0	—	new / 0
Nav aids · Gulf of Suez	2	7.8	2	5	5.0× / 0.4
Derelicts · South China Sea	2	6.4	0	—	2.5× / 0.8
Cable ops · Inner Seas off the West Coast of Scotland	2	4.6	0	—	10× / 0.2
Nav aids · Inner Seas off the West Coast of Scotland	2	2.2	0	—	0.5× / 3.8
Exercises · Coral Seanew	2	1.6	1	28	new / 0
Restricted · North Atlantic Ocean	2	0.6	2	0	2.0× / 1
Nav aids · Gulf of California	1	140.6	5	121	new / 0
Cable ops · Arabian Sea	1	132.1	4	112	0.5× / 2.2
Cable ops · Gulf of Mexico	1	108	3	146	new / 0
Exercises · Aegean Sea	1	90.9	3	65	0.3× / 3.6
Cable ops · Black Sea	1	90.3	3	87	2.5× / 0.4
Nav aids · South Pacific Ocean	1	67.7	2	296	0.3× / 3
Nav aids · Tasman Sea	1	60.4	2	329	5.0× / 0.2
Incidents · Eastern China Sea	1	59	2	40	new / 0
Incidents · Southern Ocean	1	58.9	1	68	new / 0
Surveys · Arabian Sea	1	41.1	1	108	2.5× / 0.4
Cable ops · Indian Ocean	1	40.2	0	—	0.8× / 1.2
Surveys · Bay of Bengal	1	34.1	2	48	1.0× / 1
Incidents · Ionian Sea	1	27.6	1	68	new / 0
Volcanic · North Pacific Ocean	1	27.1	1	27	new / 0
Cable ops · Gulf of Suez	1	23.9	1	61	1.7× / 0.6
Surveys · North Sea	1	23.7	1	23	0.8× / 1.2
Restricted · Sea of Marmara	1	19.5	1	19	5.0× / 0.2
Nav aids · Bass Strait	1	19.3	1	60	1.7× / 0.6
Nav aids · North Atlantic Ocean	1	18.3	1	18	0.5× / 2
Cable ops · Gulf of Guinea	1	14.4	1	14	2.5× / 0.4
Spills · Bering Sea	1	9	1	9	5.0× / 0.2
Nav aids · South China Sea	1	8.8	1	8	new / 0
Derelicts · South Pacific Ocean	1	7.7	0	—	0.6× / 1.6
Nav aids · Malacca Strait	1	7.1	0	—	5.0× / 0.2
Exercises · Andaman or Burma Sea	1	7	0	—	1.0× / 1
Spills · North Atlantic Ocean	1	7	1	7	0.3× / 3
Cable ops · Celtic Sea	1	6.5	0	—	0.5× / 2
Debris · Indian Ocean	1	6.5	1	6	new / 0
Containers · South Atlantic Ocean	1	6.5	0	—	2.5× / 0.4
Debris · Mediterranean Sea - Eastern Basin	1	6.4	0	—	5.0× / 0.2
Debris · Celtic Sea	1	6.3	0	—	1.7× / 0.6
Exercises · Black Sea	1	6.1	0	—	0.1× / 6.8
Other · Baltic Sea	1	5.4	1	5	new / 0
Restricted · Alboran Sea	1	4.5	1	4	new / 0
Icebergs · North Atlantic Ocean	1	4.1	1	4	0.4× / 2.8
Other · North Pacific Ocean	1	3.7	0	—	0.4× / 2.8
Nav aids · Timor Sea	1	3.7	1	3	5.0× / 0.2
Derelicts · Mediterranean Sea - Eastern Basin	1	3.4	1	3	5.0× / 0.2
Other · Gulf of Mexico	1	3.3	0	—	new / 0
Cable ops · South Pacific Ocean	1	3.2	1	3	1.7× / 0.6
Quakes · Caribbean Sea	1	3	0	—	new / 0
Exercises · Caribbean Sea	1	3	0	—	5.0× / 0.2
Quakes · Mediterranean Sea - Eastern Basin	1	3	0	—	5.0× / 0.2
Quakes · Molukka Sea	1	3	0	—	0.7× / 1.4
Quakes · Sea of Okhotsk	1	3	0	—	2.5× / 0.4
Cable ops · Great Australian Bight	1	2	0	—	new / 0
Containers · Norwegian Sea	1	2	0	—	new / 0
Cable ops · English Channel	1	1.7	1	1	0.8× / 1.2
Derelicts · English Channel	1	1.7	0	—	5.0× / 0.2
Nav aids · Gulf of Alaska	1	1.3	1	1	2.5× / 0.4
Derelicts · Coral Sea	1	1.1	0	—	5.0× / 0.2
Other · North Sea	1	0.6	0	—	1.3× / 0.8
Incidents · Great Australian Bight	1	0.1	0	—	5.0× / 0.2
Incidents · Japan Sea	1	0.1	0	—	new / 0
Other · Philippine Sea	1	0.1	0	—	new / 0
Incidents · Bay of Biscay	1	0	0	—	new / 0
Other · Gulf of Guinea	1	0	0	—	new / 0
Surveys · Beaufort Sealong running	0	713	23	1,544	— / 0
Surveys · Arctic Oceanlong running	0	434	14	1,544	— / 0
Wrecks · Persian Gulflong running	0	176.4	5	611	0.0× / 0.6
Surveys · Baffin Baylong running	0	155	5	1,642	— / 0
Nav aids · Caribbean Sealong running	0	155	5	439	0.0× / 0.6
Other · Mediterranean Sea - Eastern Basin	0	107	2	127	0.0× / 2.6
Surveys · North Atlantic Ocean	0	100.4	3	237	0.0× / 0.6
Wrecks · Arabian Sealong running	0	93	3	709	— / 0
Incidents · Bay of Bengal	0	93	3	37	0.0× / 0.8
Surveys · Laptev Sealong running	0	93	3	678	— / 0
Nav aids · Persian Gulflong running	0	93	3	590	— / 0
Wrecks · South China Sealong running	0	93	3	454	— / 0
Nav aids · Arabian Sealong running	0	91.7	1	475	0.0× / 1.2
Nav aids · Laccadive Sealong running	0	90.4	2	502	0.0× / 0.8
Nav aids · South Atlantic Ocean	0	65.2	2	132	0.0× / 2.4
Derelicts · Arabian Sea	0	62	2	279	0.0× / 0.4
Cable ops · Caribbean Sea	0	62	2	361	0.0× / 0.2
Wrecks · Philippine Sealong running	0	62	2	721	— / 0
Surveys · The Northwestern Passageslong running	0	62	2	527	— / 0
Surveys · Gulf of Suez	0	52.4	1	61	— / 0
Nav aids · Bay of Bengal	0	42.8	0	—	0.0× / 1.2
Volcanic · Philippine Sealong running	0	41.6	1	544	— / 0
Exercises · South Atlantic Ocean	0	33.3	1	36	0.0× / 2.8
Nav aids · Andaman or Burma Sea	0	31	1	241	0.0× / 1
Other · Andaman or Burma Sea	0	31	1	179	0.0× / 0.2
Debris · Arctic Oceanlong running	0	31	1	1,196	— / 0
Other · Arctic Ocean	0	31	1	209	— / 0
Nav aids · Baltic Sea	0	31	1	287	— / 0
Volcanic · Banda Sea	0	31	1	364	— / 0
Restricted · Bay of Bengallong running	0	31	1	713	— / 0
Wrecks · Bay of Bengallong running	0	31	1	668	— / 0
Surveys · Bering Sea	0	31	1	195	— / 0
Other · Caribbean Sea	0	31	1	264	0.0× / 0.2
Surveys · Chukchi Sealong running	0	31	1	1,077	— / 0
Wrecks · Coral Sealong running	0	31	1	721	— / 0
Surveys · Greenland Sealong running	0	31	1	1,860	— / 0
Cable ops · Gulf of Aden	0	31	1	67	— / 0
Surveys · Gulf of Guinea	0	31	1	81	0.0× / 0.6
Structures · Gulf of Mexico	0	31	1	200	— / 0
Structures · Gulf of Suez	0	31	1	348	— / 0
Other · Gulf of Thailandlong running	0	31	1	473	— / 0
Surveys · Indian Ocean	0	31	1	42	0.0× / 0.6
Cable ops · Japan Sea	0	31	1	116	— / 0
Wrecks · Laccadive Sealong running	0	31	1	411	— / 0
Wrecks · Malacca Straitlong running	0	31	1	734	0.0× / 0.4
Wrecks · Mediterranean Sea - Eastern Basin	0	31	1	208	0.0× / 0.2
Wrecks · Mediterranean Sea - Western Basin	0	31	1	46	— / 0
Nav aids · Mozambique Channel	0	31	1	130	0.0× / 1.6
Other · North Atlantic Ocean	0	31	1	334	0.0× / 1.2
Wrecks · North Pacific Oceanlong running	0	31	1	383	0.0× / 0.2
Restricted · North Sea	0	31	1	84	0.0× / 0.2
Piracy · Persian Gulf	0	31	1	82	— / 0
Volcanic · Red Sea	0	31	1	182	— / 0
Wrecks · Red Sealong running	0	31	1	649	— / 0
Volcanic · Savu Sea	0	31	1	221	— / 0
Wrecks · South Atlantic Ocean	0	31	1	125	0.0× / 0.4
Other · South China Sealong running	0	31	1	579	0.0× / 0.2
Cable ops · Tasman Sea	0	31	1	73	0.0× / 0.4
Surveys · Tasman Sea	0	31	1	51	0.0× / 1
Cable ops · Timor Sea	0	31	1	126	0.0× / 0.4
Exercises · South China Sea	0	30.4	0	—	— / 0
Other · Eastern China Sea	0	29.3	0	—	0.0× / 0.2
Cable ops · Andaman or Burma Sea	0	28	0	—	0.0× / 0.2
Surveys · Laccadive Sea	0	25	0	—	— / 0
Volcanic · South Pacific Ocean	0	24.9	0	—	0.0× / 0.6
Incidents · Adriatic Sea	0	21.4	0	—	0.0× / 0.2
Other · Coral Sea	0	21.4	0	—	0.0× / 0.2
Incidents · Gulf of Aden	0	21.4	0	—	0.0× / 0.2
Incidents · Gulf of Oman	0	21.4	0	—	— / 0
Incidents · Arabian Sea	0	15.1	0	—	0.0× / 0.6
Other · Arafura Sea	0	14.4	0	—	0.0× / 0.2
Incidents · Gulf of Guinea	0	10.6	0	—	0.0× / 0.2
Volcanic · South China Sea	0	8.4	0	—	— / 0
Other · Celtic Sea	0	5.5	0	—	0.0× / 0.2
Ordnance · Japan Sea	0	5.4	0	—	0.0× / 0.6

Cite: seahazards.com Sea Ledger, 2008-03, 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.