Sea Ledger, December 2005

2005-12-01 to 2005-12-31 · archive

issued: 320
warning-days in force: 9,686
in force at month end: 303
sea × type cells: 190

baseline: same month, previous 5 years (2004-12, 2003-12, 2002-12, 2001-12, 2000-12)

By type

type	issued	warning-days	in force at end
Exercises	76	830.1	22
Incidents	65	1,403.4	42
Nav aids	39	2,860.1	92
Cable ops	35	854.1	32
Quakes	26	82.6	1
Surveys	20	810.5	26
Derelicts	14	103.9	1
Icebergs	14	77.9	3
Spills	5	93	2
Missiles	5	62	2
Containers	5	31.7	0
Wrecks	5	1,436.8	46
Other	5	288.6	11
Debris	3	81	3
Restricted	2	184.1	6
Volcanic	1	58.7	2
Structures	0	136.1	3
Piracy	0	93	3
Ordnance	0	198.1	6

By sea and type · 190 cells, most issued first

cell	issued	warning-days	at end	longest d	vs 5 y
Incidents · North Pacific Oceansurge	24	145	2	69	3.2× / 7.6
Exercises · Laccadive Seasurge	16	61.2	2	35	2.8× / 5.8
Icebergs · South Atlantic Oceansurge	13	74.9	3	32	2.5× / 5.2
Exercises · Aegean Seasurge	12	213.2	9	362	4.0× / 3
Cable ops · South Atlantic Ocean	10	35.7	2	34	0.4× / 24.6
Exercises · Bay of Bengal	9	22.5	0	—	1.7× / 5.4
Incidents · South China Sea	8	159.5	6	89	1.6× / 5
Exercises · North Atlantic Ocean	8	87.4	1	360	0.9× / 8.8
Quakes · South Pacific Ocean	8	26.9	0	—	0.7× / 12.4
Exercises · North Pacific Ocean	7	70.3	1	35	1.3× / 5.6
Surveys · Indian Oceansurge	7	20	0	—	35× / 0.2
Incidents · South Pacific Oceanlong running	6	210.1	7	551	0.8× / 7.2
Exercises · Mediterranean Sea - Eastern Basinsurge	6	56.6	0	—	2.5× / 2.4
Incidents · Philippine Sea	6	53.2	0	—	1.1× / 5.6
Cable ops · Bay of Bengalsurge	5	131.3	6	65	6.3× / 0.8
Cable ops · Mediterranean Sea - Eastern Basinsurge	5	123.9	7	205	6.3× / 0.8
Incidents · North Atlantic Ocean	5	93.5	2	53	0.8× / 6.4
Cable ops · North Seasurge	5	73.7	1	249	2.1× / 2.4
Missiles · North Pacific Ocean	5	62	2	89	1.0× / 4.8
Surveys · North Seasurge	5	50.5	2	145	13× / 0.4
Derelicts · South Atlantic Oceansurge	5	28.8	0	—	3.6× / 1.4
Quakes · North Pacific Ocean	5	13.9	1	33	0.9× / 5.6
Nav aids · Arabian Seasurgelong running	4	204.1	7	500	5.0× / 0.8
Nav aids · South Atlantic Oceanlong running	4	143.4	3	385	0.8× / 4.8
Nav aids · Irish Sea and St. George's Channelsurge	4	112.7	3	240	5.0× / 0.8
Nav aids · Coral Sealong running	4	94.2	3	558	1.3× / 3
Surveys · North Atlantic Oceansurge	4	49.1	2	114	3.3× / 1.2
Exercises · South Atlantic Oceansurge	4	36.8	0	—	2.2× / 1.8
Quakes · Philippine Seasurge	4	12	0	—	2.5× / 1.6
Nav aids · Bay of Bengalsurge	3	224.3	9	311	5.0× / 0.6
Incidents · Mediterranean Sea - Eastern Basin	3	139.9	5	256	1.3× / 2.4
Nav aids · Celtic Sealong running	3	103.5	3	392	1.4× / 2.2
Exercises · Ionian Sea	3	71.6	4	362	1.9× / 1.6
Cable ops · Arabian Sea	3	66.6	2	45	1.5× / 2
Derelicts · Celtic Seasurge	3	2.9	0	—	15× / 0.2
Nav aids · South Pacific Ocean	2	230.7	8	101	1.3× / 1.6
Nav aids · English Channellong running	2	203.5	6	382	0.3× / 6
Incidents · Tasman Sea	2	92.5	3	43	1.1× / 1.8
Incidents · South Atlantic Ocean	2	87.6	3	31	0.4× / 5.2
Exercises · Yellow Sea	2	73.5	2	49	3.3× / 0.6
Exercises · Japan Sea	2	72.1	2	35	5.0× / 0.4
Nav aids · North Atlantic Ocean	2	64.5	3	134	0.8× / 2.6
Cable ops · Persian Gulf	2	54.8	3	110	5.0× / 0.4
Incidents · Arabian Sea	2	53.8	2	29	3.3× / 0.6
Other · Arabian Sea	2	50.8	3	194	10× / 0.2
Nav aids · Andaman or Burma Seanew	2	48.9	3	59	new / 0
Incidents · Coral Sea	2	48.5	2	80	0.9× / 2.2
Spills · North Atlantic Ocean	2	39	0	—	0.6× / 3.2
Spills · North Pacific Ocean	2	29	1	34	5.0× / 0.4
Containers · North Pacific Ocean	2	12.9	0	—	2.0× / 1
Containers · North Atlantic Ocean	2	12.8	0	—	2.0× / 1
Derelicts · North Atlantic Ocean	2	6.9	0	—	0.8× / 2.6
Quakes · North Atlantic Ocean	2	6	0	—	2.5× / 0.8
Exercises · Arabian Sea	2	4.7	0	—	0.7× / 2.8
Exercises · Philippine Sea	2	3.2	0	—	1.7× / 1.2
Nav aids · Indian Ocean	2	2	0	—	5.0× / 0.4
Surveys · Bass Straitnew	2	1.7	0	—	new / 0
Nav aids · North Sealong running	1	246.7	7	410	0.2× / 5
Nav aids · Tyrrhenian Sealong running	1	158.7	5	408	0.5× / 2
Wrecks · South China Sealong running	1	132.7	4	490	new / 0
Wrecks · English Channel	1	125.1	4	207	5.0× / 0.2
Cable ops · North Atlantic Ocean	1	122.6	4	162	0.5× / 2
Wrecks · Inner Seas off the West Coast of Scotland	1	63.5	3	49	new / 0
Cable ops · Black Sea	1	54	1	235	1.7× / 0.6
Cable ops · Gulf of Thailand	1	53.7	2	72	new / 0
Wrecks · Kattegat	1	53.2	2	42	new / 0
Nav aids · Mediterranean Sea - Western Basinlong running	1	48.8	1	375	0.3× / 3
Restricted · North Atlantic Ocean	1	41.9	1	68	2.5× / 0.4
Exercises · Malacca Strait	1	33.8	1	31	1.3× / 0.8
Incidents · Timor Sea	1	30.1	1	30	1.7× / 0.6
Wrecks · Coral Sea	1	29.5	1	29	new / 0
Volcanic · Philippine Sea	1	27.7	1	164	new / 0
Cable ops · Great Australian Bight	1	25	1	25	new / 0
Surveys · Bay of Bengallong running	1	24.1	1	424	new / 0
Cable ops · Gulf of Oman	1	21.6	1	21	new / 0
Spills · Gulf of Mexico	1	21	1	37	0.3× / 3
Incidents · Ionian Sea	1	18.4	1	18	2.5× / 0.4
Restricted · North Sea	1	18.2	1	18	new / 0
Other · Great Australian Bight	1	16.5	1	16	1.7× / 0.6
Derelicts · Bay of Bengal	1	13.6	0	—	2.5× / 0.4
Incidents · Mozambique Channel	1	13.2	1	13	5.0× / 0.2
Debris · South Pacific Ocean	1	12.9	1	31	5.0× / 0.2
Exercises · South Pacific Ocean	1	8.6	0	—	0.5× / 2.2
Exercises · Black Sea	1	7	0	—	0.3× / 3.4
Derelicts · Bay of Biscay	1	6.4	0	—	2.5× / 0.4
Derelicts · South China Sea	1	6.3	0	—	0.8× / 1.2
Incidents · English Channel	1	6.1	0	—	new / 0
Derelicts · Caribbean Sea	1	6	0	—	5.0× / 0.2
Other · Mediterranean Sea - Western Basin	1	6	0	—	new / 0
Containers · South China Sea	1	6	0	—	1.7× / 0.6
Surveys · Gulf of Suez	1	5.7	1	5	new / 0
Nav aids · Bristol Channel	1	4.6	0	—	new / 0
Nav aids · Laccadive Sea	1	4.3	1	4	1.7× / 0.6
Other · Mozambique Channel	1	4.1	1	4	new / 0
Incidents · Laccadive Sea	1	3.7	1	3	5.0× / 0.2
Quakes · Banda Sea	1	3	0	—	1.3× / 0.8
Quakes · Bismarck Sea	1	3	0	—	0.4× / 2.8
Quakes · Coral Sea	1	3	0	—	0.6× / 1.6
Quakes · Eastern China Sea	1	3	0	—	2.5× / 0.4
Quakes · Indian Ocean	1	3	0	—	0.1× / 7
Icebergs · Indian Ocean	1	3	0	—	new / 0
Quakes · Molukka Sea	1	3	0	—	1.3× / 0.8
Quakes · Solomon Sea	1	3	0	—	0.6× / 1.8
Nav aids · Arafura Sea	1	2.6	0	—	new / 0
Debris · English Channel	1	2.1	0	—	5.0× / 0.2
Debris · North Sea	1	1	0	—	5.0× / 0.2
Nav aids · Timor Sea	1	0.2	0	—	5.0× / 0.2
Wrecks · North Sealong running	0	217	7	435	0.0× / 2.2
Nav aids · Caribbean Sea	0	186	6	201	0.0× / 0.2
Ordnance · North Sea	0	186	6	226	— / 0
Wrecks · Arabian Sealong running	0	163.6	5	487	0.0× / 0.4
Nav aids · North Pacific Oceanlong running	0	163.6	5	497	— / 0
Surveys · Baffin Baylong running	0	155	5	821	— / 0
Nav aids · Inner Seas off the West Coast of Scotland	0	130.7	4	205	0.0× / 1.6
Wrecks · Mediterranean Sea - Eastern Basinlong running	0	124	4	551	— / 0
Surveys · Arctic Oceanlong running	0	93	3	723	— / 0
Surveys · Beaufort Sealong running	0	93	3	723	— / 0
Nav aids · Gulf of Mexico	0	93	3	264	0.0× / 0.2
Piracy · Persian Gulf	0	93	3	326	— / 0
Nav aids · Southern Ocean	0	93	3	33	— / 0
Incidents · Indian Ocean	0	86.6	1	259	0.0× / 2.8
Wrecks · South Pacific Oceanlong running	0	70.5	2	580	0.0× / 0.4
Wrecks · Irish Sea and St. George's Channellong running	0	69.6	2	481	— / 0
Surveys · Arabian Sea	0	63.7	2	287	0.0× / 0.2
Other · Bay of Bengal	0	62	2	277	— / 0
Wrecks · Caribbean Sea	0	62	2	346	— / 0
Wrecks · Gulf of Mexicolong running	0	62	2	460	0.0× / 0.2
Incidents · Mediterranean Sea - Western Basin	0	62	2	45	— / 0
Nav aids · Mozambique Channel	0	62	2	263	0.0× / 0.2
Nav aids · Red Sealong running	0	62	2	516	0.0× / 0.2
Incidents · Southern Ocean	0	62	2	42	— / 0
Wrecks · Yellow Sealong running	0	62	2	563	0.0× / 0.2
Structures · Mediterranean Sea - Eastern Basin	0	60.5	1	96	— / 0
Surveys · Gulf of Mexico	0	40	1	95	0.0× / 0.4
Cable ops · South China Sea	0	39.6	1	244	0.0× / 0.6
Nav aids · Tasman Sealong running	0	39.5	1	496	0.0× / 1.4
Cable ops · Irish Sea and St. George's Channel	0	38.8	1	82	0.0× / 1.2
Other · North Sea	0	38.8	1	254	0.0× / 1.2
Wrecks · South Atlantic Ocean	0	38.6	1	293	0.0× / 0.4
Surveys · Black Sea	0	31.7	1	59	0.0× / 0.2
Volcanic · Andaman or Burma Sea	0	31	1	208	— / 0
Wrecks · Andaman or Burma Sea	0	31	1	85	— / 0
Debris · Arctic Oceanlong running	0	31	1	375	0.0× / 0.2
Restricted · Black Sea	0	31	1	172	— / 0
Structures · Black Sea	0	31	1	128	— / 0
Surveys · Chukchi Sea	0	31	1	256	— / 0
Surveys · Greenland Sealong running	0	31	1	1,039	— / 0
Other · Gulf of Mexico	0	31	1	40	— / 0
Nav aids · Gulf of Suez	0	31	1	96	— / 0
Wrecks · Gulf of Suez	0	31	1	47	— / 0
Restricted · Indian Ocean	0	31	1	251	— / 0
Wrecks · Indian Oceanlong running	0	31	1	390	0.0× / 0.4
Nav aids · Ionian Sea	0	31	1	185	0.0× / 0.4
Restricted · Irish Sea and St. George's Channel	0	31	1	190	— / 0
Incidents · Japan Sea	0	31	1	46	— / 0
Surveys · Japan Sea	0	31	1	40	— / 0
Nav aids · Malacca Strait	0	31	1	93	— / 0
Nav aids · Mediterranean Sea - Eastern Basinlong running	0	31	1	498	0.0× / 0.6
Debris · North Pacific Ocean	0	31	1	199	— / 0
Surveys · North Pacific Ocean	0	31	1	152	0.0× / 0.2
Derelicts · North Sea	0	31	1	32	0.0× / 0.4
Other · Persian Gulf	0	31	1	80	0.0× / 0.6
Restricted · Persian Gulf	0	31	1	31	0.0× / 0.2
Structures · Persian Gulflong running	0	31	1	439	— / 0
Wrecks · Red Sea	0	31	1	47	— / 0
Surveys · Sea of Okhotsk	0	31	1	86	— / 0
Wrecks · Singapore Straitlong running	0	31	1	586	— / 0
Other · Tasman Sealong running	0	31	1	417	0.0× / 1.2
Surveys · Gulf of Guinea	0	21	0	—	0.0× / 0.2
Structures · Gulf of Mexico	0	13.6	0	—	— / 0
Ordnance · Gulf of Oman	0	12.1	0	—	— / 0
Other · Mediterranean Sea - Eastern Basin	0	10.7	0	—	0.0× / 0.6
Nav aids · Philippine Sea	0	8.6	0	—	— / 0
Wrecks · Malacca Strait	0	8.5	0	—	— / 0
Cable ops · Bass Strait	0	6.7	0	—	0.0× / 0.4
Incidents · Gulf of Oman	0	6.7	0	—	0.0× / 0.2
Other · Inner Seas off the West Coast of Scotland	0	6.7	0	—	0.0× / 0.8
Surveys · Philippine Sea	0	5	0	—	0.0× / 0.6
Exercises · Adriatic Sea	0	4.3	0	—	0.0× / 1
Cable ops · Indian Ocean	0	4.1	0	—	— / 0
Spills · Caribbean Sea	0	4	0	—	0.0× / 0.2
Debris · Bass Strait	0	3	0	—	— / 0
Quakes · Celebes Sea	0	2.7	0	—	0.0× / 0.6
Derelicts · Indian Ocean	0	2	0	—	0.0× / 0.4
Cable ops · North Pacific Ocean	0	2	0	—	— / 0
Exercises · Sea of Marmara	0	2	0	—	— / 0
Surveys · South China Sea	0	2	0	—	— / 0
Exercises · Eastern China Sea	0	1.3	0	—	— / 0
Quakes · Southern Ocean	0	0.1	0	—	— / 0
Cable ops · Sea of Okhotsk	0	0	0	—	— / 0

Cite: seahazards.com Sea Ledger, 2005-12, 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.