Sea Ledger, October 2006

2006-10-01 to 2006-10-31 · archive

issued: 310
warning-days in force: 11,382
in force at month end: 393
sea × type cells: 214

baseline: same month, previous 5 years (2005-10, 2004-10, 2003-10, 2002-10, 2001-10)

By type

type	issued	warning-days	in force at end
Exercises	59	933.1	30
Surveys	50	1,471	72
Incidents	41	1,198.1	43
Cable ops	41	925.9	25
Quakes	37	125.8	4
Nav aids	32	3,753	124
Derelicts	11	58	3
Other	10	663.2	21
Spills	9	121	3
Missiles	6	62	2
Icebergs	4	25.7	1
Containers	3	10.3	1
Wrecks	2	1,359.3	42
Restricted	2	254.9	8
Towing	1	26.5	1
Debris	1	66.4	3
Volcanic	1	58.6	2
Ordnance	0	31	1
Structures	0	176.6	5
Piracy	0	62	2

By sea and type · 200 cells, most issued first

cell	issued	warning-days	at end	longest d	vs 5 y
Surveys · Beaufort Seanewlong running	19	323.2	23	1,027	new / 0
Cable ops · South Atlantic Ocean	15	97.9	3	145	0.8× / 18.2
Incidents · South Pacific Ocean	11	293.6	12	76	1.2× / 9.4
Surveys · Arctic Oceansurgelong running	9	186	12	1,027	45× / 0.2
Exercises · Laccadive Sea	9	58.7	3	32	1.1× / 8
Exercises · North Atlantic Ocean	8	52	2	65	1.3× / 6.4
Quakes · South Pacific Ocean	8	29	0	—	0.9× / 9.2
Exercises · South Atlantic Ocean	7	43.8	2	31	1.9× / 3.6
Quakes · North Pacific Ocean	7	29.3	0	—	0.9× / 8
Quakes · Philippine Seasurge	7	20.6	1	19	7.0× / 1
Missiles · North Pacific Ocean	6	62	2	37	1.1× / 5.6
Exercises · Aegean Seasurge	5	308.5	9	308	2.5× / 2
Incidents · Philippine Sea	5	142.9	5	60	1.0× / 4.8
Cable ops · Mediterranean Sea - Eastern Basinsurge	5	138	2	67	3.1× / 1.6
Nav aids · English Channelsurgelong running	5	39.3	2	380	2.8× / 1.8
Derelicts · Mediterranean Sea - Eastern Basinsurge	5	32.9	2	18	5.0× / 1
Incidents · North Pacific Ocean	4	111.2	5	49	0.7× / 6.2
Exercises · Japan Seasurge	4	80.6	2	36	2.9× / 1.4
Spills · Gulf of Mexicosurge	4	53	2	44	2.5× / 1.6
Cable ops · Laccadive Seasurge	4	46.7	3	30	10× / 0.4
Surveys · Black Seasurge	4	20.4	2	27	20× / 0.2
Exercises · Bay of Bengal	4	15.3	2	32	0.8× / 5
Nav aids · South Pacific Ocean	3	501	18	299	1.1× / 2.6
Nav aids · Inner Seas off the West Coast of Scotland	3	99.3	4	145	1.9× / 1.6
Exercises · Yellow Seasurge	3	78.5	3	36	7.5× / 0.4
Nav aids · North Atlantic Ocean	3	65.5	2	287	1.7× / 1.8
Incidents · South Atlantic Ocean	3	62.6	2	75	0.9× / 3.4
Exercises · Mediterranean Sea - Western Basinsurge	3	59.3	1	60	2.5× / 1.2
Other · North Seasurge	3	54.2	1	179	3.0× / 1
Exercises · North Pacific Ocean	3	39	3	41	0.5× / 6.2
Exercises · Black Sea	3	26.7	0	—	0.4× / 7.2
Icebergs · South Pacific Oceansurge	3	17.8	1	31	15× / 0.2
Nav aids · North Sea	3	12.7	1	27	0.5× / 6.4
Cable ops · Celtic Seasurge	3	10.1	0	—	5.0× / 0.6
Quakes · Indian Ocean	3	9	0	—	1.1× / 2.6
Quakes · South China Seasurge	3	9	0	—	5.0× / 0.6
Cable ops · South China Sea	2	176.9	3	87	0.7× / 2.8
Nav aids · Caribbean Sealong running	2	164.3	6	505	3.3× / 0.6
Incidents · North Atlantic Ocean	2	139	4	76	0.4× / 4.8
Nav aids · Tyrrhenian Sealong running	2	97.6	3	712	0.7× / 2.8
Surveys · Celtic Sea	2	62	2	48	0.9× / 2.2
Surveys · Bay of Bengalnew	2	61.4	2	50	new / 0
Cable ops · Black Sea	2	56.3	2	34	5.0× / 0.4
Incidents · Tasman Sea	2	36.1	0	—	1.7× / 1.2
Spills · North Atlantic Ocean	2	33	0	—	2.0× / 1
Incidents · Ionian Sea	2	27.8	1	27	5.0× / 0.4
Exercises · Indian Ocean	2	25.7	1	23	5.0× / 0.4
Incidents · Coral Sea	2	25.6	1	52	0.4× / 5.4
Incidents · Gulf of Guinea	2	22.7	2	11	10× / 0.2
Spills · Caribbean Seanew	2	21	1	16	new / 0
Surveys · The Northwestern Passagesnew	2	20.4	2	10	new / 0
Restricted · North Atlantic Ocean	2	19.2	1	22	2.0× / 1
Cable ops · North Sea	2	18.7	1	26	1.4× / 1.4
Exercises · Adriatic Sea	2	17.5	0	—	1.3× / 1.6
Derelicts · Timor Sea	2	6.5	1	28	1.4× / 1.4
Quakes · Celebes Seanew	2	6	0	—	new / 0
Quakes · Coral Sea	2	6	0	—	2.0× / 1
Containers · North Pacific Ocean	2	6	0	—	2.5× / 0.8
Exercises · South Pacific Ocean	2	5.1	0	—	0.6× / 3.4
Quakes · Solomon Sea	2	4.8	1	14	0.8× / 2.4
Quakes · Molukka Sea	2	3.3	2	1	3.3× / 0.6
Nav aids · Bay of Bengallong running	1	449.4	15	615	5.0× / 0.2
Nav aids · Coral Sealong running	1	201.5	6	849	0.3× / 3
Other · Persian Gulflong running	1	130.3	4	384	5.0× / 0.2
Nav aids · Andaman or Burma Sea	1	115.4	4	363	2.5× / 0.4
Nav aids · Gulf of Mexicolong running	1	93	3	568	1.3× / 0.8
Nav aids · Arafura Sea	1	89.8	3	85	new / 0
Nav aids · Mediterranean Sea - Eastern Basinlong running	1	84.6	3	802	new / 0
Surveys · Laptev Sea	1	72.1	3	161	new / 0
Other · South Pacific Ocean	1	68.9	3	127	2.5× / 0.4
Cable ops · Sea of Okhotsk	1	67.4	2	74	2.5× / 0.4
Nav aids · Great Australian Bight	1	64.2	2	131	0.8× / 1.2
Nav aids · Irish Sea and St. George's Channel	1	53.5	1	236	1.3× / 0.8
Incidents · Bay of Bengal	1	52.7	2	36	1.7× / 0.6
Surveys · Philippine Sea	1	51.6	1	185	1.3× / 0.8
Other · Mediterranean Sea - Eastern Basin	1	51	1	50	2.5× / 0.4
Nav aids · Celtic Sea	1	47.7	1	125	0.4× / 2.4
Surveys · South Pacific Ocean	1	46.4	1	197	5.0× / 0.2
Surveys · South Atlantic Ocean	1	40	1	87	0.3× / 3.8
Incidents · South China Sea	1	34.4	1	36	0.5× / 2
Surveys · North Sea	1	34.3	1	176	2.5× / 0.4
Surveys · Indian Ocean	1	27.6	1	27	2.5× / 0.4
Volcanic · Philippine Sea	1	27.6	1	27	5.0× / 0.2
Cable ops · Gulf of Mexico	1	27.3	1	126	5.0× / 0.2
Towing · Black Sea	1	26.5	1	26	5.0× / 0.2
Incidents · Arabian Sea	1	26.4	1	26	1.0× / 1
Wrecks · Gulf of Guinea	1	18.3	1	18	new / 0
Incidents · Mozambique Channel	1	16.1	1	16	5.0× / 0.2
Spills · North Pacific Ocean	1	14	0	—	2.5× / 0.4
Exercises · Persian Gulf	1	11.6	0	—	0.5× / 2
Cable ops · Labrador Sea	1	11.4	0	—	new / 0
Surveys · English Channel	1	11.3	1	11	2.5× / 0.4
Nav aids · South Atlantic Ocean	1	10.9	0	—	0.2× / 4.4
Exercises · Alboran Sea	1	8.6	0	—	5.0× / 0.2
Wrecks · Caribbean Sealong running	1	8.6	1	650	5.0× / 0.2
Incidents · Japan Sea	1	8.6	1	8	1.7× / 0.6
Icebergs · South Atlantic Ocean	1	7.9	0	—	0.4× / 2.8
Exercises · Arabian Sea	1	7.4	0	—	0.3× / 3.8
Incidents · Indian Ocean	1	7.1	1	7	0.3× / 4
Derelicts · Indian Ocean	1	6.4	0	—	1.3× / 0.8
Derelicts · Arabian Sea	1	6.3	0	—	new / 0
Other · Ionian Sea	1	6.3	0	—	new / 0
Derelicts · Caribbean Sea	1	5.9	0	—	5.0× / 0.2
Cable ops · North Atlantic Ocean	1	5.9	0	—	0.4× / 2.4
Cable ops · Caribbean Sea	1	5.6	1	5	5.0× / 0.2
Surveys · Sea of Azov	1	5.6	1	5	new / 0
Cable ops · Irish Sea and St. George's Channel	1	5.4	0	—	1.3× / 0.8
Debris · North Atlantic Ocean	1	4.4	1	4	2.5× / 0.4
Containers · North Atlantic Ocean	1	4.3	1	4	0.8× / 1.2
Surveys · South China Sea	1	4.3	1	77	new / 0
Surveys · Yellow Sea	1	4.3	1	4	5.0× / 0.2
Cable ops · Java Sea	1	3.6	1	3	5.0× / 0.2
Cable ops · Aegean Sea	1	3.4	0	—	5.0× / 0.2
Quakes · Tyrrhenian Sea	1	3	0	—	new / 0
Surveys · Bay of Biscay	1	2.3	0	—	5.0× / 0.2
Exercises · Andaman or Burma Sea	1	1.9	0	—	2.5× / 0.4
Other · Bay of Bengal	1	1.4	1	1	5.0× / 0.2
Other · North Atlantic Ocean	1	0.8	0	—	0.6× / 1.8
Surveys · Tyrrhenian Sea	1	0.4	1	0	1.3× / 0.8
Other · Coral Sea	1	0.3	0	—	1.7× / 0.6
Incidents · Arafura Sea	1	0.2	0	—	5.0× / 0.2
Nav aids · Bristol Channel	1	0.1	0	—	5.0× / 0.2
Incidents · Timor Sea	1	0.1	0	—	2.5× / 0.4
Derelicts · English Channel	1	0	0	—	2.5× / 0.4
Nav aids · Arabian Sealong running	0	279	9	804	0.0× / 0.6
Nav aids · Bering Sea	0	217	7	104	— / 0
Nav aids · Indian Ocean	0	217	7	169	0.0× / 0.8
Wrecks · Mediterranean Sea - Eastern Basinlong running	0	186	6	855	0.0× / 0.4
Wrecks · Arabian Sealong running	0	159.3	4	791	— / 0
Surveys · Baffin Baylong running	0	155	5	1,125	0.0× / 0.6
Nav aids · North Pacific Oceanlong running	0	134.8	4	801	0.0× / 0.6
Wrecks · South China Sealong running	0	134.8	4	794	0.0× / 0.4
Nav aids · Laccadive Sea	0	124	4	308	— / 0
Nav aids · Mozambique Channellong running	0	124	4	567	0.0× / 0.6
Wrecks · North Sealong running	0	117.7	3	399	0.0× / 0.8
Nav aids · Mediterranean Sea - Western Basin	0	95.4	3	193	0.0× / 0.6
Wrecks · Persian Gulf	0	93	3	296	0.0× / 0.4
Other · South China Sea	0	93	3	139	— / 0
Nav aids · Tasman Sealong running	0	93	3	800	0.0× / 0.4
Cable ops · Persian Gulf	0	70	2	117	0.0× / 0.4
Other · Arabian Sea	0	62	2	258	0.0× / 0.2
Surveys · Arabian Sealong running	0	62	2	591	0.0× / 0.2
Nav aids · Bass Strait	0	62	2	43	0.0× / 0.8
Wrecks · Bay of Bengal	0	62	2	151	— / 0
Wrecks · Coral Sea	0	62	2	279	0.0× / 0.2
Exercises · Ionian Sea	0	62	2	308	0.0× / 1.8
Surveys · North Atlantic Ocean	0	62	2	209	0.0× / 0.8
Piracy · Persian Gulflong running	0	62	2	630	— / 0
Structures · Persian Gulflong running	0	62	2	743	0.0× / 0.2
Surveys · Persian Gulf	0	62	2	182	0.0× / 0.2
Cable ops · Tasman Sea	0	62	2	275	0.0× / 0.2
Wrecks · Tasman Sea	0	62	2	165	— / 0
Wrecks · Tyrrhenian Sea	0	62	2	224	0.0× / 0.2
Wrecks · Yellow Sealong running	0	62	2	867	— / 0
Incidents · Laccadive Sea	0	55.6	1	52	0.0× / 0.2
Structures · North Sea	0	52.6	1	148	— / 0
Wrecks · South Pacific Oceanlong running	0	41.8	1	884	0.0× / 0.2
Other · Sea of Okhotsk	0	40	1	144	— / 0
Wrecks · Andaman or Burma Sealong running	0	31	1	389	0.0× / 0.2
Ordnance · Arabian Sea	0	31	1	297	— / 0
Debris · Arctic Oceanlong running	0	31	1	679	— / 0
Restricted · Bay of Bengal	0	31	1	196	— / 0
Incidents · Bay of Biscay	0	31	1	34	— / 0
Surveys · Chukchi Sealong running	0	31	1	560	— / 0
Cable ops · Eastern China Sea	0	31	1	109	0.0× / 1.8
Other · Eastern China Sea	0	31	1	218	— / 0
Wrecks · Eastern China Sea	0	31	1	134	— / 0
Surveys · Greenland Sealong running	0	31	1	1,343	— / 0
Other · Gulf of Mexico	0	31	1	344	— / 0
Other · Gulf of Suez	0	31	1	242	— / 0
Surveys · Gulf of Suez	0	31	1	105	0.0× / 0.2
Other · Indian Ocean	0	31	1	222	0.0× / 2
Restricted · Indian Oceanlong running	0	31	1	555	0.0× / 0.2
Wrecks · Indian Oceanlong running	0	31	1	694	— / 0
Nav aids · Ionian Sea	0	31	1	187	0.0× / 0.4
Wrecks · Irish Sea and St. George's Channellong running	0	31	1	782	— / 0
Nav aids · Malacca Straitlong running	0	31	1	397	— / 0
Wrecks · Malacca Strait	0	31	1	217	0.0× / 0.2
Restricted · Mediterranean Sea - Eastern Basin	0	31	1	147	— / 0
Structures · Mediterranean Sea - Eastern Basin	0	31	1	131	0.0× / 0.4
Wrecks · North Atlantic Ocean	0	31	1	271	— / 0
Debris · North Pacific Ocean	0	31	1	63	— / 0
Restricted · North Pacific Ocean	0	31	1	162	— / 0
Surveys · North Pacific Oceanlong running	0	31	1	456	0.0× / 0.2
Volcanic · North Pacific Ocean	0	31	1	297	— / 0
Restricted · North Sea	0	31	1	85	0.0× / 0.6
Nav aids · Persian Gulf	0	31	1	73	0.0× / 0.8
Wrecks · Philippine Sea	0	31	1	204	0.0× / 0.2
Nav aids · Red Sealong running	0	31	1	820	0.0× / 0.2
Wrecks · Red Sea	0	31	1	132	— / 0
Surveys · Sea of Marmara	0	31	1	144	0.0× / 0.4
Nav aids · Sea of Okhotsk	0	31	1	133	0.0× / 0.2
Other · South Atlantic Ocean	0	31	1	31	0.0× / 1.2
Wrecks · South Atlantic Oceanlong running	0	31	1	597	— / 0
Structures · South China Sea	0	31	1	125	— / 0
Cable ops · South Pacific Ocean	0	31	1	227	— / 0
Nav aids · Southern Ocean	0	31	1	231	— / 0
Restricted · Strait of Gibraltar	0	31	1	89	— / 0
Nav aids · Sulu Sea	0	31	1	139	— / 0
Restricted · Tasman Sea	0	31	1	166	— / 0

Cite: seahazards.com Sea Ledger, 2006-10, 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.