Sea Ledger, August 2006

2006-08-01 to 2006-08-31 · archive

issued: 344
warning-days in force: 12,536
in force at month end: 378
sea × type cells: 239

baseline: same month, previous 5 years (2005-08, 2004-08, 2003-08, 2002-08, 2001-08)

By type

type	issued	warning-days	in force at end
Incidents	81	1,910.9	50
Exercises	58	829.8	25
Quakes	32	92.5	4
Nav aids	31	3,776.2	114
Cable ops	30	767	26
Other	26	805	26
Surveys	20	1,255	39
Derelicts	18	166.4	3
Icebergs	10	58.1	2
Spills	7	125.8	4
Wrecks	6	1,776	56
Missiles	6	62	2
Restricted	5	307.8	10
Ordnance	4	91.5	3
Towing	3	14.1	1
Containers	3	18.6	0
Debris	2	54	2
Volcanic	1	90.8	1
Structures	1	272.8	8
Piracy	0	62	2

By sea and type · 200 cells, most issued first

cell	issued	warning-days	at end	longest d	vs 5 y
Incidents · North Pacific Ocean	19	512.5	14	84	1.9× / 10.2
Incidents · South Pacific Oceansurge	16	240.1	9	70	3.3× / 4.8
Incidents · Philippine Seasurge	15	322.3	6	72	3.8× / 4
Exercises · North Pacific Ocean	12	88.1	1	36	1.3× / 9.2
Cable ops · South Atlantic Ocean	11	114.2	3	84	0.8× / 13.6
Exercises · Laccadive Sea	10	71	2	34	1.3× / 8
Other · North Atlantic Oceansurge	9	31.8	0	—	7.5× / 1.2
Quakes · North Pacific Ocean	9	29.1	0	—	1.2× / 7.4
Icebergs · South Atlantic Oceansurge	8	43.1	2	29	5.7× / 1.4
Nav aids · Bering Seasurge	6	206.8	7	43	30× / 0.2
Missiles · North Pacific Ocean	6	62	2	61	1.1× / 5.6
Exercises · North Atlantic Ocean	6	53.1	2	25	0.5× / 12.2
Derelicts · Mediterranean Sea - Eastern Basinsurge	6	40.1	1	37	2.5× / 2.4
Cable ops · Mediterranean Sea - Eastern Basinsurge	5	121.3	4	31	2.8× / 1.8
Nav aids · South Atlantic Oceanlong running	5	103.7	3	628	1.1× / 4.4
Incidents · South Atlantic Ocean	5	88.4	2	162	1.1× / 4.4
Incidents · Tasman Seasurge	5	75.4	2	80	3.6× / 1.4
Exercises · Bay of Bengal	5	25.1	1	63	1.3× / 3.8
Nav aids · Coral Seasurgelong running	4	152.5	5	788	2.5× / 1.6
Cable ops · South China Sea	4	72.9	4	31	1.2× / 3.4
Incidents · North Atlantic Ocean	4	50	3	86	0.9× / 4.2
Exercises · Black Sea	4	47.6	1	36	0.5× / 8.6
Other · North Pacific Oceansurge	4	33.3	3	72	6.7× / 0.6
Quakes · South Pacific Ocean	4	12.1	0	—	0.4× / 9.4
Quakes · Indian Oceansurge	4	11.4	1	32	2.5× / 1.6
Exercises · South Pacific Oceansurge	4	11.4	0	—	2.2× / 1.8
Quakes · Southern Oceansurge	4	10.8	0	—	3.3× / 1.2
Exercises · South Atlantic Ocean	4	9.8	3	7	1.1× / 3.8
Nav aids · Indian Oceansurge	3	173.5	6	108	3.0× / 1
Nav aids · North Sealong running	3	157.3	2	482	0.6× / 4.8
Surveys · Celtic Sea	3	109	3	40	1.4× / 2.2
Other · North Sea	3	76.6	2	118	1.1× / 2.8
Exercises · Japan Sea	3	73	3	36	1.9× / 1.6
Surveys · Bay of Bengalsurge	3	71.2	2	190	15× / 0.2
Incidents · Bay of Bengalsurge	3	11.2	0	—	3.8× / 0.8
Nav aids · Inner Seas off the West Coast of Scotlandlong running	2	161.4	4	380	0.7× / 3
Incidents · Mediterranean Sea - Eastern Basinlong running	2	90.7	1	499	2.5× / 0.8
Exercises · Yellow Sea	2	73	2	36	1.7× / 1.2
Other · Mediterranean Sea - Eastern Basin	2	66.8	1	66	1.7× / 1.2
Incidents · Arabian Sea	2	51.9	2	84	1.7× / 1.2
Surveys · North Sea	2	47.2	2	115	1.1× / 1.8
Other · South China Sea	2	45.5	3	78	10× / 0.2
Derelicts · Indian Ocean	2	40.7	1	44	3.3× / 0.6
Surveys · North Atlantic Ocean	2	36.7	1	148	1.3× / 1.6
Spills · Gulf of Mexico	2	36	0	—	0.6× / 3.4
Wrecks · Bay of Bengal	2	32.6	2	90	5.0× / 0.4
Surveys · South Atlantic Ocean	2	30.5	1	26	1.0× / 2
Incidents · Andaman or Burma Sea	2	20.2	2	10	10× / 0.2
Spills · The Coastal Waters of Southeast Alaska and British Columbia	2	19	1	24	5.0× / 0.4
Other · English Channel	2	13.5	0	—	10× / 0.2
Restricted · Philippine Seanew	2	13.4	0	—	new / 0
Surveys · Ionian Sea	2	12.8	1	17	10× / 0.2
Cable ops · English Channel	2	10.4	0	—	3.3× / 0.6
Surveys · Adriatic Seanew	2	10	0	—	new / 0
Exercises · Andaman or Burma Sea	2	9.6	0	—	3.3× / 0.6
Derelicts · South Pacific Ocean	2	8	1	33	1.7× / 1.2
Ordnance · Tyrrhenian Sea	2	7.5	0	—	2.5× / 0.8
Derelicts · Bay of Bengal	2	7.2	0	—	5.0× / 0.4
Derelicts · Gulf of Mexico	2	6.7	0	—	10× / 0.2
Quakes · Coral Sea	2	6	0	—	1.1× / 1.8
Quakes · Molukka Sea	2	3.2	2	2	2.5× / 0.8
Quakes · Eastern China Sea	2	3	1	19	10× / 0.2
Other · Celtic Sea	2	2	0	—	2.0× / 1
Nav aids · South Pacific Ocean	1	438.9	14	238	0.4× / 2.6
Structures · North Sea	1	103.2	4	87	new / 0
Nav aids · Irish Sea and St. George's Channel	1	97.5	3	175	0.5× / 2
Nav aids · Tasman Sealong running	1	93	3	739	0.6× / 1.6
Other · Sea of Okhotsk	1	91.4	3	111	new / 0
Wrecks · Yellow Sealong running	1	82.6	3	806	new / 0
Nav aids · Tyrrhenian Sealong running	1	64.1	2	651	0.6× / 1.6
Incidents · Tyrrhenian Sea	1	61.8	2	37	1.3× / 0.8
Cable ops · Persian Gulf	1	55.4	2	56	1.3× / 0.8
Restricted · Strait of Gibraltar	1	53	1	84	new / 0
Surveys · North Pacific Oceanlong running	1	51.6	2	395	2.5× / 0.4
Incidents · South China Sea	1	49.4	1	73	0.4× / 2.4
Incidents · Coral Sea	1	46.5	0	—	0.2× / 4.6
Surveys · Sea of Okhotsk	1	44.3	1	106	1.3× / 0.8
Surveys · Mediterranean Sea - Eastern Basin	1	42.2	0	—	0.6× / 1.6
Derelicts · North Atlantic Ocean	1	36.2	0	—	0.6× / 1.6
Wrecks · Tyrrhenian Sea	1	31.6	2	163	new / 0
Nav aids · Great Australian Bight	1	31.1	1	70	2.5× / 0.4
Volcanic · Philippine Sea	1	29.9	0	—	1.7× / 0.6
Cable ops · North Sea	1	29.1	1	29	1.0× / 1
Incidents · Persian Gulf	1	29.1	1	29	new / 0
Wrecks · Timor Sea	1	28.4	0	—	new / 0
Nav aids · Arafura Sea	1	24.4	1	24	new / 0
Restricted · North Sea	1	24.2	1	24	new / 0
Incidents · Southern Ocean	1	23.1	0	—	1.3× / 0.8
Wrecks · Inner Seas off the West Coast of Scotland	1	22.2	1	22	new / 0
Spills · North Pacific Ocean	1	21	1	39	1.3× / 0.8
Debris · North Pacific Oceanlong running	1	17.5	1	442	1.0× / 1
Surveys · South China Sea	1	16.5	1	16	1.7× / 0.6
Cable ops · Adriatic Sea	1	14.5	1	14	5.0× / 0.2
Cable ops · Sea of Okhotsk	1	13.4	1	61	1.3× / 0.8
Towing · Sea of Okhotsk	1	13.4	1	13	new / 0
Cable ops · Java Sea	1	13.2	1	13	5.0× / 0.2
Nav aids · Persian Gulf	1	12.5	1	12	1.0× / 1
Spills · Sulu Sea	1	11	1	11	new / 0
Exercises · Norwegian Sea	1	9.2	0	—	5.0× / 0.2
Derelicts · North Pacific Ocean	1	8.1	0	—	1.7× / 0.6
Incidents · Sea of Okhotsk	1	7	1	6	5.0× / 0.2
Containers · Arabian Sea	1	6.7	0	—	5.0× / 0.2
Incidents · Japan Sea	1	6.6	0	—	1.3× / 0.8
Cable ops · Sea of Marmara	1	6.6	0	—	5.0× / 0.2
Icebergs · Arctic Ocean	1	6.4	0	—	new / 0
Icebergs · North Atlantic Ocean	1	6.4	0	—	new / 0
Derelicts · Mediterranean Sea - Western Basin	1	6.3	0	—	5.0× / 0.2
Ordnance · Mediterranean Sea - Western Basin	1	6.3	0	—	2.5× / 0.4
Containers · North Atlantic Ocean	1	6.3	0	—	5.0× / 0.2
Derelicts · Tyrrhenian Sea	1	6.1	0	—	1.0× / 1
Other · Arctic Ocean	1	6	0	—	new / 0
Containers · Bay of Bengal	1	5.6	0	—	new / 0
Debris · North Atlantic Ocean	1	5.5	0	—	1.7× / 0.6
Exercises · Indian Ocean	1	5.3	0	—	1.3× / 0.8
Exercises · South China Sea	1	5.3	0	—	new / 0
Exercises · Philippine Sea	1	5	0	—	1.3× / 0.8
Cable ops · Red Sea	1	4.8	0	—	new / 0
Quakes · Banda Sea	1	3	0	—	1.3× / 0.8
Quakes · Bismarck Sea	1	3	0	—	1.0× / 1
Quakes · Japan Sea	1	3	0	—	5.0× / 0.2
Spills · North Atlantic Ocean	1	3	1	3	2.5× / 0.4
Quakes · Philippine Sea	1	3	0	—	1.0× / 1
Quakes · Solomon Sea	1	3	0	—	1.3× / 0.8
Exercises · North Sea	1	2.6	0	—	new / 0
Nav aids · The Coastal Waters of Southeast Alaska and British Columbia	1	2.4	0	—	new / 0
Cable ops · Aegean Sea	1	0.6	1	0	new / 0
Ordnance · English Channel	1	0.5	1	0	new / 0
Towing · South Atlantic Ocean	1	0.4	0	—	new / 0
Towing · Indian Ocean	1	0.3	0	—	new / 0
Exercises · Sea of Okhotsk	1	0.3	1	0	5.0× / 0.2
Restricted · North Atlantic Ocean	1	0.2	1	0	new / 0
Incidents · Arafura Sea	1	0.1	0	—	2.5× / 0.4
Nav aids · Bay of Bengallong running	0	434	14	554	0.0× / 0.4
Nav aids · Arabian Sealong running	0	279	9	743	0.0× / 1.8
Exercises · Aegean Sea	0	278.4	7	247	0.0× / 1.6
Wrecks · Arabian Sealong running	0	248	8	730	0.0× / 0.8
Wrecks · Mediterranean Sea - Eastern Basinlong running	0	186	6	794	0.0× / 0.2
Wrecks · South China Sealong running	0	186	6	733	0.0× / 0.6
Nav aids · Caribbean Sealong running	0	184.8	5	444	— / 0
Surveys · Baffin Baylong running	0	155	5	1,064	— / 0
Nav aids · North Pacific Oceanlong running	0	155	5	740	0.0× / 0.2
Surveys · Beaufort Sealong running	0	124	4	966	— / 0
Nav aids · Laccadive Sea	0	124	4	247	— / 0
Nav aids · Mozambique Channellong running	0	124	4	506	0.0× / 0.4
Other · Persian Gulf	0	124	4	323	0.0× / 1
Nav aids · English Channellong running	0	122.8	2	482	0.0× / 2
Wrecks · North Sealong running	0	108.2	3	626	0.0× / 1
Nav aids · Andaman or Burma Sea	0	93	3	302	0.0× / 1
Surveys · Arctic Oceanlong running	0	93	3	966	0.0× / 0.2
Nav aids · Gulf of Mexicolong running	0	93	3	507	0.0× / 0.4
Cable ops · Tasman Sea	0	93	3	214	0.0× / 0.4
Wrecks · Caribbean Sealong running	0	91.8	2	589	— / 0
Incidents · Indian Oceanlong running	0	86.5	2	502	0.0× / 4.4
Nav aids · Celtic Sea	0	84.8	2	266	0.0× / 1.2
Nav aids · Mediterranean Sea - Western Basin	0	83.7	2	188	0.0× / 1.4
Wrecks · Irish Sea and St. George's Channellong running	0	77.2	2	724	— / 0
Wrecks · South Pacific Oceanlong running	0	77.2	2	823	— / 0
Other · Arabian Sea	0	62	2	197	— / 0
Surveys · Arabian Sealong running	0	62	2	530	— / 0
Wrecks · Coral Sea	0	62	2	218	— / 0
Other · Eastern China Sea	0	62	2	157	— / 0
Exercises · Ionian Sea	0	62	2	247	0.0× / 0.2
Surveys · Laptev Sea	0	62	2	100	— / 0
Nav aids · Mediterranean Sea - Eastern Basinlong running	0	62	2	741	0.0× / 0.8
Wrecks · North Atlantic Ocean	0	62	2	231	— / 0
Piracy · Persian Gulflong running	0	62	2	569	— / 0
Structures · Persian Gulflong running	0	62	2	682	— / 0
Wrecks · Persian Gulf	0	62	2	235	0.0× / 0.4
Other · South Pacific Ocean	0	62	2	66	0.0× / 0.2
Surveys · South Pacific Ocean	0	62	2	136	— / 0
Wrecks · Tasman Sea	0	62	2	104	— / 0
Incidents · Eastern China Sea	0	60.9	1	49	— / 0
Cable ops · Norwegian Sea	0	54.7	1	41	0.0× / 0.8
Ordnance · North Sealong running	0	46.2	1	440	0.0× / 0.6
Structures · Gulf of Mexico	0	45.6	0	—	— / 0
Cable ops · Gulf of Thailand	0	37	1	69	0.0× / 0.2
Restricted · Alboran Sea	0	31	1	59	— / 0
Wrecks · Andaman or Burma Sea	0	31	1	328	— / 0
Ordnance · Arabian Sea	0	31	1	236	— / 0
Debris · Arctic Oceanlong running	0	31	1	618	— / 0
Restricted · Bay of Bengal	0	31	1	135	— / 0
Incidents · Bering Sea	0	31	1	43	— / 0
Surveys · Chukchi Sealong running	0	31	1	499	— / 0
Cable ops · Eastern China Sea	0	31	1	48	0.0× / 1.8
Wrecks · Eastern China Sea	0	31	1	73	— / 0
Wrecks · English Channel	0	31	1	357	— / 0
Surveys · Greenland Sealong running	0	31	1	1,282	— / 0
Cable ops · Gulf of Mexico	0	31	1	65	— / 0
Other · Gulf of Mexico	0	31	1	283	— / 0
Other · Gulf of Suez	0	31	1	181	— / 0
Surveys · Gulf of Suez	0	31	1	44	— / 0
Other · Indian Ocean	0	31	1	161	— / 0
Restricted · Indian Oceanlong running	0	31	1	494	— / 0
Wrecks · Indian Oceanlong running	0	31	1	633	0.0× / 0.2
Nav aids · Ionian Sea	0	31	1	126	0.0× / 0.4
Nav aids · Malacca Strait	0	31	1	336	0.0× / 0.2
Wrecks · Malacca Strait	0	31	1	156	— / 0
Restricted · Mediterranean Sea - Eastern Basin	0	31	1	86	— / 0
Structures · Mediterranean Sea - Eastern Basin	0	31	1	70	— / 0
Restricted · Mediterranean Sea - Western Basin	0	31	1	143	— / 0

Cite: seahazards.com Sea Ledger, 2006-08, 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.