Sea Ledger, February 2006

2006-02-01 to 2006-02-28 · archive

issued: 273
warning-days in force: 8,960
in force at month end: 334
sea × type cells: 206

baseline: same month, previous 5 years (2005-02, 2004-02, 2003-02, 2002-02, 2001-02)

By type

type	issued	warning-days	in force at end
Exercises	67	919.6	40
Nav aids	36	2,736.7	96
Incidents	33	916.8	37
Cable ops	27	750.5	29
Quakes	25	77.5	2
Other	15	567.3	19
Containers	13	85.8	4
Derelicts	12	73.1	4
Surveys	11	682.1	25
Icebergs	9	32	4
Spills	8	102	4
Wrecks	6	1,412.2	50
Missiles	4	56	2
Restricted	3	186	6
Ordnance	2	115.4	4
Debris	1	63.8	2
Volcanic	1	56	2
Structures	0	71.2	2
Piracy	0	56	2

By sea and type · 200 cells, most issued first

cell	issued	warning-days	at end	longest d	vs 5 y
Exercises · Laccadive Sea	11	60.4	1	28	1.8× / 6.2
Exercises · Bay of Bengalsurge	11	46.6	2	31	2.8× / 4
Cable ops · South Atlantic Ocean	10	56.7	2	42	0.3× / 31
Exercises · Aegean Seasurge	9	250.4	11	63	3.8× / 2.4
Nav aids · North Sealong running	8	304.3	12	469	1.5× / 5.4
Incidents · South Pacific Oceanlong running	8	224.1	9	610	1.0× / 7.8
Containers · North Atlantic Oceansurge	8	47.7	2	31	6.7× / 1.2
Quakes · South Pacific Ocean	8	23.7	2	26	0.9× / 8.6
Exercises · North Pacific Ocean	7	83.8	4	36	1.0× / 7
Icebergs · South Atlantic Oceansurge	7	23.3	2	34	2.5× / 2.8
Nav aids · South Atlantic Oceanlong running	5	144.1	5	444	0.9× / 5.4
Derelicts · South Atlantic Ocean	5	17.7	0	—	1.7× / 3
Exercises · Mediterranean Sea - Eastern Basin	5	16.9	2	12	1.9× / 2.6
Missiles · North Pacific Ocean	4	56	2	30	0.8× / 4.8
Incidents · South Atlantic Ocean	4	27.5	2	73	0.9× / 4.4
Quakes · North Pacific Ocean	4	12	0	—	0.8× / 4.8
Cable ops · North Atlantic Ocean	3	103.1	4	106	0.8× / 3.6
Other · Persian Gulfsurge	3	95.5	4	139	7.5× / 0.4
Cable ops · Persian Gulfsurge	3	84	3	70	3.0× / 1
Incidents · Philippine Sea	3	75.3	3	50	0.8× / 4
Incidents · Coral Sea	3	72.9	3	39	1.1× / 2.8
Other · South Atlantic Oceansurge	3	51.5	1	27	3.0× / 1
Nav aids · North Atlantic Ocean	3	45.3	2	193	1.3× / 2.4
Spills · Gulf of Mexico	3	40	1	28	1.7× / 1.8
Incidents · North Atlantic Ocean	3	39.5	3	44	0.8× / 3.8
Spills · North Atlantic Ocean	3	37	2	42	1.4× / 2.2
Exercises · South Atlantic Oceansurge	3	31.1	1	33	15× / 0.2
Quakes · Coral Seasurge	3	9	0	—	5.0× / 0.6
Cable ops · Caribbean Seanew	3	7.2	1	8	new / 0
Nav aids · Arabian Sealong running	2	289.4	10	559	5.0× / 0.4
Nav aids · Bay of Bengallong running	2	279.9	11	370	3.3× / 0.6
Nav aids · South Pacific Ocean	2	220.1	3	160	0.9× / 2.2
Cable ops · Bay of Bengal	2	204.7	7	106	1.1× / 1.8
Other · North Pacific Ocean	2	126.3	5	49	1.4× / 1.4
Incidents · North Pacific Ocean	2	118.3	4	70	0.3× / 8
Nav aids · Mozambique Channel	2	109.6	4	322	1.4× / 1.4
Wrecks · English Channel	2	95.4	3	266	10× / 0.2
Exercises · Ionian Sea	2	91.1	4	63	2.0× / 1
Exercises · Japan Sea	2	86.6	2	32	2.5× / 0.8
Cable ops · Mediterranean Sea - Eastern Basin	2	60.4	3	264	0.8× / 2.4
Nav aids · Coral Sealong running	2	43.4	1	604	0.8× / 2.6
Restricted · North Atlantic Ocean	2	36.4	2	127	10× / 0.2
Exercises · Philippine Sea	2	35.5	0	—	5.0× / 0.4
Nav aids · Celtic Sealong running	2	34.2	1	451	1.3× / 1.6
Wrecks · Mozambique Channelnew	2	26.7	2	14	new / 0
Exercises · Tyrrhenian Sea	2	26.2	1	24	1.1× / 1.8
Other · Inner Seas off the West Coast of Scotland	2	22.8	1	28	5.0× / 0.4
Containers · Celtic Sea	2	11.2	1	11	2.5× / 0.8
Icebergs · Southern Ocean	2	8.7	2	4	0.8× / 2.4
Derelicts · North Atlantic Ocean	2	8.6	1	12	0.7× / 2.8
Exercises · Persian Gulf	2	8.2	1	14	2.5× / 0.8
Quakes · Solomon Sea	2	6	0	—	0.9× / 2.2
Quakes · South Atlantic Ocean	2	6	0	—	1.7× / 1.2
Surveys · Indian Ocean	2	5	1	17	5.0× / 0.4
Surveys · Celtic Sea	2	2.8	0	—	0.8× / 2.4
Exercises · Arabian Sea	2	2.4	1	23	0.3× / 6.6
Nav aids · English Channel	1	143	5	298	0.3× / 3
Nav aids · Inner Seas off the West Coast of Scotland	1	112.1	5	264	0.1× / 6.8
Incidents · Indian Ocean	1	90.2	3	318	0.3× / 3.8
Ordnance · North Sea	1	59	2	256	5.0× / 0.2
Exercises · Yellow Sea	1	58.7	1	32	1.7× / 0.6
Cable ops · Arabian Sea	1	58	2	67	0.2× / 4.2
Wrecks · North Atlantic Ocean	1	54.3	2	47	5.0× / 0.2
Incidents · Laccadive Sea	1	47	2	62	new / 0
Nav aids · Tasman Sealong running	1	45.7	2	555	1.7× / 0.6
Exercises · North Atlantic Ocean	1	43.4	2	40	0.1× / 10.2
Other · Arabian Sea	1	41.3	2	74	5.0× / 0.2
Surveys · Mediterranean Sea - Western Basin	1	38	1	29	new / 0
Nav aids · Malacca Strait	1	36.7	2	152	5.0× / 0.2
Cable ops · South China Sea	1	36.5	2	126	1.7× / 0.6
Derelicts · Indian Ocean	1	29.9	2	30	2.5× / 0.4
Exercises · Mediterranean Sea - Western Basin	1	29.4	2	48	0.4× / 2.4
Other · Gulf of Mexico	1	29	1	99	new / 0
Incidents · English Channel	1	28.1	1	58	new / 0
Volcanic · Philippine Sea	1	28	1	45	5.0× / 0.2
Exercises · Black Sea	1	27.1	1	33	0.3× / 3.4
Other · Tyrrhenian Sea	1	21.1	1	21	1.3× / 0.8
Incidents · North Sea	1	20.4	1	20	new / 0
Incidents · Arafura Sea	1	19	1	18	5.0× / 0.2
Wrecks · Timor Sea	1	15.3	1	15	new / 0
Containers · South China Sea	1	14.7	0	—	new / 0
Spills · Gulf of Alaska	1	14	0	—	new / 0
Incidents · South China Sea	1	12.2	1	70	0.4× / 2.6
Incidents · Red Sea	1	12	0	—	5.0× / 0.2
Spills · North Pacific Ocean	1	11	1	37	1.7× / 0.6
Surveys · South Atlantic Ocean	1	10.6	1	10	0.5× / 2.2
Other · South Pacific Ocean	1	8.4	1	8	new / 0
Surveys · Adriatic Sea	1	8	0	—	new / 0
Containers · Banda Sea	1	6.8	0	—	new / 0
Cable ops · Sea of Marmara	1	6.8	0	—	new / 0
Derelicts · North Pacific Ocean	1	6.6	0	—	1.0× / 1
Exercises · Sea of Okhotsk	1	6.6	1	6	new / 0
Nav aids · Persian Gulf	1	6.5	1	6	1.7× / 0.6
Surveys · Persian Gulf	1	6.5	1	6	5.0× / 0.2
Surveys · Bay of Bengal	1	6.4	1	6	1.3× / 0.8
Derelicts · Arafura Sea	1	6.2	0	—	2.5× / 0.4
Debris · Caribbean Sea	1	6.2	0	—	5.0× / 0.2
Quakes · Indian Ocean	1	5.8	0	—	0.3× / 4
Other · North Sea	1	5.6	0	—	1.0× / 1
Exercises · Sea of Marmara	1	5.3	1	5	new / 0
Nav aids · Mediterranean Sea - Western Basinlong running	1	5.1	1	434	1.7× / 0.6
Surveys · North Sea	1	5	0	—	0.6× / 1.6
Exercises · Andaman or Burma Sea	1	4.9	0	—	1.7× / 0.6
Incidents · Eastern China Sea	1	4.7	1	4	5.0× / 0.2
Derelicts · Arabian Sea	1	3.6	1	3	new / 0
Quakes · Banda Sea	1	3	0	—	2.5× / 0.4
Quakes · Bay of Bengal	1	3	0	—	5.0× / 0.2
Quakes · Bering Sea	1	3	0	—	new / 0
Quakes · Flores Sea	1	3	0	—	new / 0
Quakes · Philippine Sea	1	3	0	—	0.3× / 3.2
Restricted · Ionian Sea	1	2.4	0	—	new / 0
Incidents · Caribbean Sea	1	2.3	0	—	5.0× / 0.2
Exercises · Norwegian Sea	1	2.2	1	2	new / 0
Cable ops · Strait of Gibraltar	1	1.8	1	1	new / 0
Containers · Indian Ocean	1	1.4	1	1	new / 0
Surveys · English Channel	1	1.3	0	—	0.3× / 3.6
Incidents · Mozambique Channel	1	0.8	0	—	1.0× / 1
Nav aids · Great Australian Bight	1	0.6	1	0	1.0× / 1
Derelicts · South Pacific Ocean	1	0.5	0	—	0.8× / 1.2
Ordnance · North Pacific Ocean	1	0.4	0	—	5.0× / 0.2
Nav aids · Bristol Channel	1	0.3	0	—	1.7× / 0.6
Exercises · South Pacific Ocean	1	0.1	1	0	2.5× / 0.4
Nav aids · Caribbean Sea	0	174.5	5	260	— / 0
Wrecks · North Sealong running	0	168	6	494	— / 0
Wrecks · Mediterranean Sea - Eastern Basinlong running	0	154.6	5	610	0.0× / 0.2
Wrecks · Arabian Sealong running	0	140	5	546	0.0× / 0.2
Surveys · Baffin Baylong running	0	140	5	880	— / 0
Nav aids · North Pacific Oceanlong running	0	140	5	556	0.0× / 0.2
Surveys · Arabian Sea	0	112	4	346	0.0× / 0.4
Wrecks · South China Sealong running	0	112	4	549	0.0× / 0.4
Nav aids · Andaman or Burma Sea	0	84	3	118	— / 0
Surveys · Arctic Oceanlong running	0	84	3	782	— / 0
Surveys · Beaufort Sealong running	0	84	3	782	— / 0
Nav aids · Gulf of Mexico	0	84	3	323	0.0× / 1
Nav aids · Irish Sea and St. George's Channel	0	84	3	259	0.0× / 1.4
Wrecks · Irish Sea and St. George's Channellong running	0	84	3	540	— / 0
Nav aids · Laccadive Sea	0	84	3	63	0.0× / 0.2
Nav aids · Mediterranean Sea - Eastern Basinlong running	0	84	3	557	0.0× / 0.2
Incidents · Mediterranean Sea - Eastern Basin	0	57.3	2	315	0.0× / 2.6
Wrecks · Caribbean Sealong running	0	56	2	405	— / 0
Wrecks · Coral Sea	0	56	2	88	0.0× / 0.6
Wrecks · Inner Seas off the West Coast of Scotland	0	56	2	108	— / 0
Piracy · Persian Gulflong running	0	56	2	385	0.0× / 0.4
Nav aids · Red Sealong running	0	56	2	575	— / 0
Wrecks · Yellow Sealong running	0	56	2	622	— / 0
Wrecks · South Pacific Oceanlong running	0	42.6	1	639	0.0× / 0.2
Nav aids · Southern Ocean	0	42.6	1	92	— / 0
Wrecks · Gulf of Mexicolong running	0	40.5	1	519	— / 0
Nav aids · Tyrrhenian Sealong running	0	40.1	1	467	0.0× / 2.8
Wrecks · Kattegat	0	30.8	1	101	0.0× / 0.4
Wrecks · Andaman or Burma Sea	0	28	1	144	0.0× / 0.2
Ordnance · Arabian Sea	0	28	1	52	— / 0
Debris · Arctic Oceanlong running	0	28	1	434	— / 0
Ordnance · Bay of Bengal	0	28	1	56	0.0× / 0.2
Other · Bay of Bengal	0	28	1	336	— / 0
Restricted · Black Sea	0	28	1	231	— / 0
Surveys · Chukchi Sea	0	28	1	315	— / 0
Other · Great Australian Bight	0	28	1	34	— / 0
Surveys · Greenland Sealong running	0	28	1	1,098	0.0× / 0.6
Structures · Gulf of Mexico	0	28	1	55	— / 0
Nav aids · Gulf of Suez	0	28	1	155	0.0× / 0.2
Wrecks · Gulf of Suez	0	28	1	106	— / 0
Cable ops · Gulf of Thailand	0	28	1	81	— / 0
Restricted · Indian Ocean	0	28	1	310	— / 0
Wrecks · Indian Oceanlong running	0	28	1	449	— / 0
Cable ops · Laccadive Sea	0	28	1	41	0.0× / 0.6
Surveys · Laccadive Sea	0	28	1	50	— / 0
Other · Mozambique Channel	0	28	1	63	— / 0
Debris · North Pacific Ocean	0	28	1	258	— / 0
Surveys · North Pacific Ocean	0	28	1	211	— / 0
Volcanic · North Pacific Ocean	0	28	1	52	— / 0
Wrecks · North Pacific Ocean	0	28	1	54	— / 0
Restricted · North Sea	0	28	1	77	— / 0
Restricted · Persian Gulf	0	28	1	90	— / 0
Structures · Persian Gulflong running	0	28	1	498	— / 0
Wrecks · Persian Gulf	0	28	1	51	0.0× / 0.4
Wrecks · Red Sea	0	28	1	106	— / 0
Wrecks · Singapore Straitlong running	0	28	1	645	— / 0
Wrecks · South Atlantic Ocean	0	28	1	352	— / 0
Cable ops · South Pacific Ocean	0	28	1	30	0.0× / 1.4
Surveys · South Pacific Ocean	0	28	1	41	— / 0
Cable ops · Tasman Sea	0	28	1	30	0.0× / 0.4
Incidents · Tyrrhenian Sea	0	28	1	39	0.0× / 0.4
Surveys · North Atlantic Ocean	0	23	0	—	0.0× / 1.8
Incidents · Tasman Sea	0	22.6	0	—	0.0× / 1.2
Other · North Atlantic Ocean	0	21.6	0	—	0.0× / 0.4
Restricted · Strait of Gibraltar	0	21.6	0	—	— / 0
Other · Gulf of Guinea	0	20	0	—	— / 0
Surveys · Mediterranean Sea - Eastern Basin	0	15.5	0	—	0.0× / 1.2
Nav aids · Bass Strait	0	14.6	0	—	0.0× / 0.6
Structures · Mediterranean Sea - Eastern Basin	0	14.6	0	—	— / 0
Incidents · Persian Gulf	0	14.6	0	—	— / 0
Other · South China Sea	0	14.6	0	—	— / 0
Other · Tasman Sea	0	14.6	0	—	— / 0
Restricted · Bay of Bengal	0	13	0	—	— / 0
Cable ops · Makassar Strait	0	11.4	0	—	0.0× / 0.2
Other · Mediterranean Sea - Eastern Basin	0	11	0	—	0.0× / 1
Cable ops · Black Sea	0	6.7	0	—	0.0× / 0.4
Containers · Coral Sea	0	4	0	—	— / 0
Exercises · Adriatic Sea	0	2.7	0	—	0.0× / 1.2

Cite: seahazards.com Sea Ledger, 2006-02, 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.