Sea Ledger, March 2007

2007-03-01 to 2007-03-31 · archive

issued: 374
warning-days in force: 14,013
in force at month end: 438
sea × type cells: 248

baseline: same month, previous 5 years (2006-03, 2005-03, 2004-03, 2003-03, 2002-03)

By type

type	issued	warning-days	in force at end
Cable ops	69	1,149.8	41
Exercises	67	768.6	20
Incidents	56	1,163.8	38
Quakes	48	166.8	8
Nav aids	42	5,022	159
Derelicts	23	159.6	4
Surveys	14	2,097.7	67
Spills	12	178	4
Icebergs	11	64.7	1
Other	9	930.7	26
Missiles	5	62	2
Debris	5	55.4	2
Ordnance	4	112.8	3
Restricted	3	285.3	8
Containers	3	25.5	0
Wrecks	2	1,356.4	43
Mines	1	6.4	0
Volcanic	0	155	5
Towing	0	45	1
Structures	0	155	5
Piracy	0	52.8	1

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	37	193.2	7	43	1.7× / 22
Exercises · North Pacific Ocean	10	76.3	1	37	1.7× / 6
Incidents · Philippine Sea	10	59.2	5	71	1.5× / 6.8
Exercises · Laccadive Sea	10	47.9	2	37	1.3× / 7.8
Incidents · North Pacific Ocean	10	40.8	4	30	1.4× / 7.2
Nav aids · South Pacific Oceansurgelong running	9	707.5	26	450	4.5× / 2
Quakes · South Pacific Ocean	9	21.5	4	28	0.9× / 9.8
Incidents · South Pacific Ocean	8	172.7	5	72	1.0× / 8
Exercises · Bay of Bengal	8	40.3	0	—	1.2× / 6.8
Spills · Gulf of Mexicosurge	7	102	3	37	5.8× / 1.2
Quakes · Indian Ocean	7	22	0	—	1.4× / 5.2
Quakes · North Pacific Ocean	7	21	0	—	1.6× / 4.4
Nav aids · North Sea	6	224	8	163	1.8× / 3.4
Exercises · Japan Seasurge	6	81.5	3	34	4.3× / 1.4
Exercises · North Atlantic Ocean	6	78	3	61	0.8× / 7.4
Cable ops · North Atlantic Oceansurge	6	27.9	1	32	3.8× / 1.6
Derelicts · South Atlantic Oceansurge	6	19.2	0	—	2.0× / 3
Nav aids · Inner Seas off the West Coast of Scotland	5	108.2	3	296	1.3× / 4
Nav aids · North Atlantic Oceansurgelong running	5	103	3	438	2.3× / 2.2
Incidents · South Atlantic Ocean	5	98.1	1	58	1.3× / 4
Missiles · North Pacific Ocean	5	62	2	61	1.1× / 4.6
Incidents · Tasman Seasurge	5	60.2	1	70	2.8× / 1.8
Exercises · Aegean Sea	4	211.2	6	87	1.4× / 2.8
Cable ops · Bay of Bengal	4	147.3	5	130	1.8× / 2.2
Spills · North Atlantic Ocean	4	61	1	32	1.7× / 2.4
Incidents · North Atlantic Ocean	4	50.3	1	149	1.1× / 3.8
Icebergs · Labrador Seanew	4	24.4	0	—	new / 0
Exercises · South Atlantic Ocean	4	12.4	1	29	1.4× / 2.8
Quakes · Philippine Sea	4	12	0	—	1.4× / 2.8
Derelicts · Indian Oceansurge	4	10.4	0	—	6.7× / 0.6
Cable ops · Indian Oceansurge	3	105.1	4	65	5.0× / 0.6
Surveys · Mediterranean Sea - Eastern Basin	3	76.2	2	106	1.1× / 2.6
Incidents · Coral Sea	3	70.8	3	61	0.9× / 3.2
Exercises · Yellow Seasurge	3	70.8	2	34	2.1× / 1.4
Nav aids · Celtic Seasurge	3	58.1	1	77	2.5× / 1.2
Cable ops · Celtic Sea	3	46.5	3	53	1.5× / 2
Other · Mediterranean Sea - Eastern Basin	3	31.7	1	22	1.5× / 2
Surveys · South Atlantic Ocean	3	12.9	1	32	0.9× / 3.4
Exercises · Andaman or Burma Seasurge	3	10.9	0	—	7.5× / 0.4
Quakes · Molukka Seasurge	3	9	0	—	3.8× / 0.8
Quakes · North Atlantic Ocean	3	9	0	—	1.7× / 1.8
Cable ops · Eastern China Seasurge	3	7.8	2	6	15× / 0.2
Exercises · Baltic Seanew	3	6.5	0	—	new / 0
Quakes · Coral Seasurge	3	6.5	1	33	2.5× / 1.2
Icebergs · North Atlantic Ocean	3	4.3	1	28	1.1× / 2.6
Nav aids · Bay of Bengallong running	2	291.1	7	656	2.5× / 0.8
Nav aids · Mozambique Channellong running	2	130.2	5	718	1.7× / 1.2
Cable ops · Mediterranean Sea - Eastern Basin	2	100.8	2	101	0.8× / 2.6
Nav aids · Andaman or Burma Sealong running	2	94.8	4	514	3.3× / 0.6
Incidents · Indian Ocean	2	86.3	2	49	0.4× / 5.4
Nav aids · Irish Sea and St. George's Channellong running	2	73.5	2	387	1.0× / 2
Incidents · South China Sea	2	59.7	2	55	0.7× / 2.8
Cable ops · Mediterranean Sea - Western Basin	2	57.9	0	—	2.5× / 0.8
Exercises · Mediterranean Sea - Eastern Basin	2	42.8	0	—	0.5× / 4.4
Derelicts · North Atlantic Ocean	2	38.8	2	40	1.4× / 1.4
Cable ops · South China Sea	2	29	2	20	1.1× / 1.8
Incidents · Persian Gulf	2	25.7	1	25	5.0× / 0.4
Cable ops · Timor Seanew	2	24.1	1	24	new / 0
Icebergs · South Atlantic Ocean	2	20.7	0	—	0.6× / 3.6
Surveys · Black Sea	2	18.5	1	18	10× / 0.2
Icebergs · Southern Ocean	2	15.3	0	—	0.7× / 3
Surveys · Bay of Bengal	2	14.7	1	26	3.3× / 0.6
Containers · North Atlantic Ocean	2	12.9	0	—	1.1× / 1.8
Other · North Atlantic Ocean	2	12.9	0	—	1.0× / 2
Ordnance · Black Seanew	2	8.5	0	—	new / 0
Debris · South Atlantic Oceannew	2	8	1	14	new / 0
Derelicts · South China Sea	2	6.8	0	—	5.0× / 0.4
Quakes · Japan Sea	2	6	0	—	10× / 0.2
Quakes · Sea of Okhotsk	2	4.6	1	19	10× / 0.2
Exercises · Arabian Sea	2	3.6	0	—	0.5× / 4
Exercises · Indian Ocean	2	1.6	0	—	10× / 0.2
Nav aids · Arabian Sealong running	1	433.1	14	446	1.0× / 1
Nav aids · Indian Ocean	1	261.8	8	320	1.0× / 1
Wrecks · Persian Gulflong running	1	201.3	6	447	2.5× / 0.4
Nav aids · English Channellong running	1	128.1	3	531	0.4× / 2.6
Nav aids · Gulf of Mexicolong running	1	95.9	3	719	1.7× / 0.6
Other · Bay of Bengal	1	90.7	2	152	1.7× / 0.6
Cable ops · Tasman Sealong running	1	90.3	3	426	2.5× / 0.4
Incidents · Arabian Sea	1	88.1	2	48	2.5× / 0.4
Incidents · Gulf of Guinea	1	71.6	3	162	new / 0
Nav aids · Bass Strait	1	62.4	2	194	1.7× / 0.6
Incidents · Mozambique Channel	1	61.5	2	33	new / 0
Other · Black Sea	1	43.8	1	112	2.5× / 0.4
Cable ops · Gulf of Guinea	1	43	2	77	5.0× / 0.2
Surveys · North Pacific Oceanlong running	1	38.6	1	607	new / 0
Surveys · Sea of Marmara	1	37.4	1	295	5.0× / 0.2
Restricted · Persian Gulf	1	30.4	1	30	new / 0
Cable ops · South Pacific Ocean	1	21.2	1	21	2.5× / 0.4
Other · North Pacific Ocean	1	20.8	0	—	0.3× / 3.6
Other · Coral Sea	1	20.4	1	20	new / 0
Wrecks · North Pacific Ocean	1	17.3	1	17	new / 0
Derelicts · South Pacific Ocean	1	15.1	1	15	0.6× / 1.6
Exercises · Black Sea	1	14.3	0	—	0.1× / 6.6
Spills · Caribbean Sea	1	14	0	—	2.5× / 0.4
Incidents · Mediterranean Sea - Western Basin	1	13.6	1	13	new / 0
Ordnance · English Channel	1	13.2	0	—	new / 0
Cable ops · Andaman or Burma Sea	1	12.6	1	12	new / 0
Restricted · Japan Sea	1	9.9	0	—	5.0× / 0.2
Surveys · Aegean Sea	1	8.5	1	8	new / 0
Surveys · English Channel	1	7.2	0	—	1.3× / 0.8
Debris · South Pacific Ocean	1	6.8	0	—	1.7× / 0.6
Derelicts · Japan Sea	1	6.7	0	—	new / 0
Derelicts · North Pacific Ocean	1	6.7	0	—	2.5× / 0.4
Containers · Celtic Sea	1	6.6	0	—	5.0× / 0.2
Debris · Persian Gulf	1	6.6	0	—	5.0× / 0.2
Mines · English Channel	1	6.4	0	—	new / 0
Derelicts · Andaman or Burma Sea	1	6.3	0	—	new / 0
Quakes · South Atlantic Ocean	1	6	0	—	0.5× / 2
Derelicts · Coral Sea	1	5.9	0	—	new / 0
Exercises · South Pacific Ocean	1	4.9	0	—	0.5× / 2.2
Incidents · Bismarck Sea	1	4.5	1	4	new / 0
Derelicts · Arafura Sea	1	3.6	0	—	0.6× / 1.6
Derelicts · Philippine Sea	1	3.2	0	—	2.5× / 0.4
Quakes · Banda Sea	1	3	0	—	0.4× / 2.8
Quakes · Flores Sea	1	3	0	—	5.0× / 0.2
Quakes · Gulf of California	1	3	0	—	5.0× / 0.2
Quakes · Ionian Sea	1	3	0	—	5.0× / 0.2
Debris · North Pacific Ocean	1	3	0	—	2.5× / 0.4
Quakes · Norwegian Sea	1	3	0	—	new / 0
Quakes · Southern Ocean	1	3	0	—	1.3× / 0.8
Restricted · Sea of Marmara	1	2.5	0	—	new / 0
Derelicts · Caribbean Sea	1	2.3	1	2	2.5× / 0.4
Derelicts · Laccadive Sea	1	2	0	—	new / 0
Nav aids · Timor Sea	1	1.7	0	—	new / 0
Cable ops · North Pacific Ocean	1	1.3	1	1	new / 0
Ordnance · North Sea	1	1.3	1	1	1.3× / 0.8
Exercises · Caribbean Sea	1	1.1	0	—	new / 0
Exercises · Tasman Sea	1	0.5	0	—	new / 0
Quakes · Celebes Sea	1	0.2	1	0	2.5× / 0.4
Surveys · Beaufort Sealong running	0	713	23	1,178	— / 0
Surveys · Arctic Oceanlong running	0	372	12	1,178	— / 0
Nav aids · Caribbean Sealong running	0	356.7	11	656	0.0× / 0.6
Nav aids · Coral Sealong running	0	341	11	1,000	0.0× / 3.4
Nav aids · Laccadive Sealong running	0	213.8	6	451	0.0× / 0.8
Wrecks · Mediterranean Sea - Eastern Basinlong running	0	186	6	1,006	0.0× / 0.2
Wrecks · North Sealong running	0	186	6	550	0.0× / 0.4
Surveys · Baffin Baylong running	0	155	5	1,276	— / 0
Nav aids · North Pacific Oceanlong running	0	155	5	619	— / 0
Nav aids · Tyrrhenian Sealong running	0	155	5	863	0.0× / 1.8
Nav aids · Bering Sea	0	124	4	255	— / 0
Cable ops · Black Sea	0	124	4	185	0.0× / 0.4
Nav aids · Mediterranean Sea - Western Basin	0	124	4	344	0.0× / 2.2
Other · Arabian Sealong running	0	105.6	2	409	— / 0
Nav aids · Arafura Sea	0	93	3	236	— / 0
Surveys · Laptev Sea	0	93	3	312	— / 0
Structures · Mediterranean Sea - Eastern Basin	0	93	3	282	0.0× / 0.4
Other · Persian Gulflong running	0	93	3	418	0.0× / 0.2
Other · South Pacific Ocean	0	93	3	278	0.0× / 0.8
Surveys · North Atlantic Ocean	0	77.7	2	360	0.0× / 1.4
Nav aids · Tasman Sealong running	0	69.5	2	413	0.0× / 0.8
Incidents · Bay of Bengal	0	68.8	2	76	0.0× / 0.8
Cable ops · Arabian Sea	0	62	2	57	0.0× / 2.4
Wrecks · Bay of Bengal	0	62	2	302	— / 0
Wrecks · Coral Sealong running	0	62	2	430	— / 0
Nav aids · Great Australian Bight	0	62	2	282	0.0× / 0.6
Nav aids · Gulf of Suez	0	62	2	107	0.0× / 0.6
Exercises · Ionian Sea	0	62	2	78	0.0× / 1.4
Nav aids · Mediterranean Sea - Eastern Basinlong running	0	62	2	953	0.0× / 0.4
Nav aids · Persian Gulf	0	62	2	224	0.0× / 0.2
Surveys · Persian Gulf	0	62	2	210	0.0× / 0.8
Volcanic · Philippine Sea	0	62	2	178	— / 0
Nav aids · Red Sea	0	62	2	137	0.0× / 0.2
Nav aids · South Atlantic Ocean	0	62	2	147	0.0× / 3.6
Other · South Atlantic Ocean	0	62	2	182	0.0× / 0.6
Other · South China Sea	0	62	2	290	0.0× / 0.6
Wrecks · South China Sealong running	0	62	2	891	— / 0
Volcanic · South Pacific Ocean	0	62	2	56	0.0× / 0.6
Wrecks · South Pacific Ocean	0	62	2	197	— / 0
Wrecks · Tasman Sea	0	62	2	316	— / 0
Surveys · The Northwestern Passages	0	62	2	161	— / 0
Ordnance · Tyrrhenian Sea	0	62	2	135	0.0× / 0.2
Wrecks · Tyrrhenian Sealong running	0	62	2	375	0.0× / 0.2
Piracy · Persian Gulflong running	0	52.8	1	781	— / 0
Surveys · Gulf of Suez	0	48	1	256	— / 0
Incidents · Mediterranean Sea - Eastern Basin	0	31.5	0	—	0.0× / 4.4
Surveys · Arabian Sealong running	0	31	1	445	0.0× / 0.6
Wrecks · Arabian Sea	0	31	1	343	— / 0
Debris · Arctic Oceanlong running	0	31	1	830	— / 0
Quakes · Bay of Bengal	0	31	1	110	0.0× / 0.2
Restricted · Bay of Bengal	0	31	1	347	— / 0
Other · Caribbean Sea	0	31	1	124	0.0× / 0.2
Restricted · Caribbean Sea	0	31	1	46	— / 0
Wrecks · Caribbean Sea	0	31	1	152	— / 0
Surveys · Chukchi Sealong running	0	31	1	711	— / 0
Other · Eastern China Sealong running	0	31	1	369	0.0× / 0.2
Surveys · Greenland Sealong running	0	31	1	1,494	— / 0
Incidents · Gulf of Aden	0	31	1	37	0.0× / 0.2
Wrecks · Gulf of Guinea	0	31	1	169	— / 0
Other · Gulf of Mexicolong running	0	31	1	495	— / 0
Other · Gulf of Suezlong running	0	31	1	393	0.0× / 0.2
Other · Gulf of Thailand	0	31	1	107	— / 0
Other · Indian Oceanlong running	0	31	1	373	0.0× / 0.2
Restricted · Indian Oceanlong running	0	31	1	706	— / 0
Surveys · Indian Ocean	0	31	1	178	0.0× / 1
Wrecks · Indian Oceanlong running	0	31	1	845	— / 0
Nav aids · Ionian Sea	0	31	1	338	0.0× / 0.2
Wrecks · Irish Sea and St. George's Channellong running	0	31	1	933	0.0× / 0.4
Other · Laccadive Sea	0	31	1	47	— / 0
Wrecks · Laccadive Sea	0	31	1	45	— / 0
Nav aids · Malacca Straitlong running	0	31	1	548	0.0× / 0.2

Cite: seahazards.com Sea Ledger, 2007-03, 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.