Sea Ledger, October 2005

2005-10-01 to 2005-10-31 · archive

issued: 294
warning-days in force: 10,688
in force at month end: 314
sea × type cells: 202

baseline: same month, previous 5 years (2004-10, 2003-10, 2002-10, 2001-10, 2000-10)

By type

type	issued	warning-days	in force at end
Exercises	61	830.7	18
Incidents	49	1,498.1	52
Nav aids	40	3,480.5	92
Cable ops	35	675.5	26
Quakes	29	119.9	3
Surveys	19	1,328.1	33
Derelicts	10	84.2	4
Other	9	401.6	12
Wrecks	8	1,197	42
Restricted	7	138.9	5
Icebergs	7	51.2	2
Missiles	6	62	2
Spills	6	96	1
Containers	4	21.5	1
Ordnance	2	261.3	7
Debris	1	192.3	6
Structures	1	98.5	4
War risk	0	26.7	0
Volcanic	0	62	2
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 · South Pacific Oceansurgelong running	17	399.7	17	490	2.6× / 6.6
Cable ops · South Atlantic Ocean	11	40.5	1	208	0.4× / 28.8
Exercises · Laccadive Sea	9	63.8	2	38	1.4× / 6.2
Incidents · Indian Oceansurge	8	217.6	10	198	2.1× / 3.8
Exercises · South Atlantic Oceansurge	8	63.9	3	33	3.6× / 2.2
Exercises · North Pacific Ocean	8	52	1	35	1.1× / 7.4
Nav aids · North Sea	7	325.4	11	349	1.0× / 7.2
Quakes · Indian Oceansurge	7	20.8	1	28	3.9× / 1.8
Spills · Gulf of Mexicosurge	6	96	1	41	15× / 0.4
Missiles · North Pacific Ocean	6	62	2	64	1.1× / 5.4
Icebergs · South Atlantic Oceansurge	6	32.4	2	24	2.5× / 2.4
Exercises · Bay of Bengal	6	20.3	0	—	1.6× / 3.8
Quakes · North Pacific Ocean	6	18	0	—	0.8× / 7.8
Exercises · South Pacific Oceansurge	6	12.1	0	—	2.7× / 2.2
Exercises · Aegean Seasurge	5	145.6	2	301	2.3× / 2.2
Incidents · Philippine Sea	5	105.7	3	56	1.3× / 3.8
Quakes · South Pacific Ocean	5	39.9	2	52	0.5× / 10.6
Nav aids · South Pacific Ocean	4	276.7	7	279	1.5× / 2.6
Incidents · North Pacific Ocean	4	58.8	2	66	0.6× / 6.8
Derelicts · South Atlantic Oceansurge	4	42.4	2	29	4.0× / 1
Exercises · Mediterranean Sea - Eastern Basin	4	17.5	0	—	1.4× / 2.8
Nav aids · English Channel	3	192.5	7	321	1.4× / 2.2
Nav aids · South Atlantic Ocean	3	178.8	6	324	0.5× / 6.4
Nav aids · Caribbean Seanew	3	148.3	4	318	new / 0
Nav aids · Gulf of Mexicosurge	3	128.9	4	203	15× / 0.2
Incidents · Mediterranean Sea - Eastern Basin	3	112.8	4	195	1.4× / 2.2
Cable ops · South China Sea	3	105	4	183	1.4× / 2.2
Surveys · Sea of Okhotsksurge	3	79.6	2	144	15× / 0.2
Incidents · Tasman Seasurge	3	26	0	—	3.0× / 1
Restricted · North Atlantic Oceansurge	3	22.6	1	21	7.5× / 0.4
Surveys · Adriatic Seasurge	3	19.9	1	34	15× / 0.2
Restricted · North Seanew	3	16.9	1	16	new / 0
Cable ops · Malacca Straitnew	3	14	1	13	new / 0
Exercises · Arabian Sea	3	10.7	0	—	0.9× / 3.2
Quakes · Aegean Seasurge	3	9	0	—	15× / 0.2
Ordnance · North Seanew	2	230.3	6	165	new / 0
Nav aids · Coral Sealong running	2	172.4	2	497	0.7× / 3
Incidents · Bay of Bengal	2	167.2	6	44	10× / 0.2
Incidents · South China Sea	2	157.6	4	63	0.8× / 2.4
Incidents · South Atlantic Ocean	2	106.8	2	47	0.5× / 3.8
Nav aids · Irish Sea and St. George's Channel	2	94.9	3	179	2.5× / 0.8
Exercises · Yellow Seanew	2	91.5	2	37	new / 0
Nav aids · North Atlantic Ocean	2	83.1	1	163	0.9× / 2.2
Exercises · Japan Sea	2	71.7	2	38	2.0× / 1
Surveys · Philippine Sea	2	54	1	177	3.3× / 0.6
Nav aids · Andaman or Burma Sea	2	53.5	2	292	3.3× / 0.6
Cable ops · North Sea	2	51.1	2	188	1.0× / 2
Surveys · North Sea	2	47.3	3	84	2.5× / 0.8
Surveys · Celtic Sea	2	35.7	1	31	0.8× / 2.4
Cable ops · Bass Strait	2	30.7	1	37	10× / 0.2
Incidents · Coral Sea	2	21.6	1	20	0.4× / 5.4
Cable ops · Celtic Sea	2	18.8	2	15	10× / 0.2
Cable ops · Bay of Bengal	2	17.3	1	186	2.0× / 1
Quakes · Solomon Sea	2	14.2	0	—	0.8× / 2.4
Surveys · South Atlantic Ocean	2	12.3	1	71	0.5× / 4.4
Exercises · Adriatic Sea	2	8.2	0	—	0.7× / 3
Exercises · Sea of Okhotsk	2	5	0	—	5.0× / 0.4
Other · South Atlantic Ocean	2	4.9	1	26	2.0× / 1
Cable ops · Strait of Gibraltarnew	2	3.3	1	3	new / 0
Surveys · Gulf of Mexico	1	206.2	5	77	new / 0
Nav aids · North Pacific Oceanlong running	1	172	6	436	1.3× / 0.8
Nav aids · Inner Seas off the West Coast of Scotland	1	151.4	5	144	0.6× / 1.6
Wrecks · South China Sealong running	1	144.6	5	429	5.0× / 0.2
Wrecks · North Sealong running	1	131.4	5	374	1.7× / 0.6
Nav aids · Celtic Sea	1	99.3	3	359	0.4× / 2.4
Wrecks · Mediterranean Sea - Eastern Basinlong running	1	98.4	3	490	5.0× / 0.2
Cable ops · Mediterranean Sea - Eastern Basin	1	80.4	3	144	0.6× / 1.6
Other · North Sea	1	72.4	2	195	0.7× / 1.4
Nav aids · Great Australian Bight	1	70.7	0	—	1.0× / 1
Exercises · North Atlantic Ocean	1	67.6	2	299	0.1× / 10
Cable ops · Sea of Okhotsk	1	64.6	2	109	5.0× / 0.2
Wrecks · South Pacific Oceanlong running	1	62.4	3	519	new / 0
Other · Indian Ocean	1	53.2	1	166	0.6× / 1.8
Nav aids · Bass Strait	1	53	0	—	0.6× / 1.6
Surveys · Bass Strait	1	48.7	1	163	1.7× / 0.6
Nav aids · Persian Gulf	1	38	1	124	1.3× / 0.8
Wrecks · Caribbean Sea	1	36.4	2	285	new / 0
Cable ops · North Atlantic Ocean	1	36	1	101	0.3× / 3.2
Other · Tasman Sea	1	31.1	1	356	2.5× / 0.4
Cable ops · Irish Sea and St. George's Channel	1	31	1	45	0.6× / 1.6
Cable ops · Arabian Sea	1	27.4	1	69	0.5× / 2.2
Nav aids · Sea of Okhotsk	1	25.5	1	25	new / 0
Wrecks · Andaman or Burma Sea	1	24.5	1	24	new / 0
Other · Persian Gulf	1	24	1	124	new / 0
Surveys · English Channel	1	23.8	1	45	1.3× / 0.8
Nav aids · South China Sea	1	19.7	1	19	new / 0
Icebergs · Southern Ocean	1	18.8	0	—	0.8× / 1.2
Exercises · Black Sea	1	17.5	1	38	0.1× / 7.6
Cable ops · Gulf of Thailand	1	11.6	1	11	new / 0
Incidents · Gulf of Oman	1	9.7	1	9	5.0× / 0.2
Surveys · Japan Sea	1	9.5	0	—	1.7× / 0.6
Exercises · Persian Gulf	1	9.4	0	—	0.6× / 1.8
Derelicts · Indian Ocean	1	8.9	0	—	1.7× / 0.6
Surveys · Bay of Biscay	1	8.3	0	—	5.0× / 0.2
Other · Norwegian Sea	1	8.2	1	8	new / 0
Containers · Arabian Sea	1	8.1	0	—	new / 0
Other · Laccadive Sea	1	8.1	0	—	new / 0
Cable ops · Gulf of Aden	1	7.9	0	—	new / 0
Derelicts · South Pacific Ocean	1	7.6	0	—	1.0× / 1
Containers · Coral Sea	1	6.7	0	—	2.5× / 0.4
Derelicts · North Pacific Ocean	1	6.5	0	—	1.0× / 1
Other · Mediterranean Sea - Eastern Basin	1	6.4	1	6	2.5× / 0.4
Restricted · South Atlantic Ocean	1	6.4	0	—	new / 0
Derelicts · Arafura Sea	1	6.3	0	—	5.0× / 0.2
Containers · Celtic Sea	1	6.3	0	—	0.7× / 1.4
Debris · Tyrrhenian Sea	1	6.3	0	—	5.0× / 0.2
Derelicts · Bay of Bengal	1	6.2	1	6	5.0× / 0.2
Structures · Gulf of Mexico	1	5.5	1	5	new / 0
Derelicts · North Atlantic Ocean	1	5.3	1	5	0.5× / 2.2
Exercises · Norwegian Sea	1	5.3	0	—	5.0× / 0.2
Quakes · Banda Sea	1	3	0	—	0.4× / 2.6
Quakes · Eastern China Sea	1	3	0	—	1.7× / 0.6
Quakes · Ionian Sea	1	3	0	—	new / 0
Quakes · Japan Sea	1	3	0	—	0.5× / 2.2
Quakes · Philippine Sea	1	3	0	—	0.4× / 2.4
Quakes · Tasman Sea	1	3	0	—	new / 0
Nav aids · Timor Sea	1	2	0	—	new / 0
Cable ops · Philippine Sea	1	1.6	1	1	2.5× / 0.4
Wrecks · Philippine Sea	1	1	0	—	new / 0
Containers · English Channel	1	0.4	1	0	new / 0
Wrecks · Inner Seas off the West Coast of Scotland	1	0.3	1	0	new / 0
Nav aids · Arabian Sealong running	0	186	6	439	0.0× / 0.6
Nav aids · Bay of Bengal	0	186	6	250	0.0× / 0.2
Nav aids · Tasman Sealong running	0	168.9	2	435	0.0× / 0.4
Wrecks · Arabian Sealong running	0	155	5	426	— / 0
Surveys · Baffin Baylong running	0	155	5	760	0.0× / 0.6
Nav aids · Tyrrhenian Sea	0	155	5	347	0.0× / 3.4
Wrecks · English Channel	0	130.7	4	146	0.0× / 1.2
Debris · Gulf of Mexico	0	124	4	54	— / 0
Nav aids · Indian Ocean	0	112.3	0	—	0.0× / 1
Wrecks · Irish Sea and St. George's Channellong running	0	97.7	3	420	— / 0
Surveys · Arctic Oceanlong running	0	93	3	662	0.0× / 0.2
Surveys · Beaufort Sealong running	0	93	3	662	— / 0
Wrecks · Gulf of Mexicolong running	0	93	3	399	— / 0
Exercises · Ionian Sea	0	93	3	301	0.0× / 2.2
Cable ops · Persian Gulf	0	74.7	2	85	0.0× / 0.8
Other · Bay of Bengal	0	66.6	2	243	0.0× / 0.2
Nav aids · Mozambique Channel	0	66.6	2	202	0.0× / 0.6
Piracy · Persian Gulf	0	62	2	265	— / 0
Wrecks · South Atlantic Ocean	0	62	2	232	— / 0
Wrecks · Yellow Sealong running	0	62	2	502	— / 0
Surveys · Tasman Sea	0	53.5	0	—	— / 0
Surveys · Bay of Bengal	0	40.3	1	363	— / 0
Nav aids · Red Sealong running	0	40.3	1	455	0.0× / 0.2
Surveys · North Atlantic Ocean	0	35.7	1	168	0.0× / 0.8
Nav aids · Gulf of Suez	0	35.6	1	338	0.0× / 0.6
Nav aids · Mediterranean Sea - Western Basin	0	35.6	1	314	0.0× / 0.6
Incidents · North Atlantic Ocean	0	34.9	1	51	0.0× / 6.2
Volcanic · Andaman or Burma Sea	0	31	1	147	— / 0
Other · Arabian Sea	0	31	1	133	0.0× / 0.2
Incidents · Arabian Sea	0	31	1	31	0.0× / 1
Surveys · Arabian Sea	0	31	1	226	0.0× / 0.2
Debris · Arctic Ocean	0	31	1	314	— / 0
Cable ops · Black Sea	0	31	1	174	0.0× / 0.4
Restricted · Black Sea	0	31	1	111	— / 0
Structures · Black Sea	0	31	1	67	— / 0
Surveys · Chukchi Sea	0	31	1	195	— / 0
Surveys · Greenland Sealong running	0	31	1	978	— / 0
Other · Gulf of Mexico	0	31	1	54	— / 0
Ordnance · Gulf of Omanlong running	0	31	1	489	— / 0
Restricted · Indian Ocean	0	31	1	190	0.0× / 0.2
Wrecks · Indian Ocean	0	31	1	329	— / 0
Nav aids · Ionian Sea	0	31	1	124	0.0× / 0.4
Restricted · Irish Sea and St. George's Channel	0	31	1	129	— / 0
Nav aids · Malacca Strait	0	31	1	32	— / 0
Wrecks · Malacca Straitlong running	0	31	1	388	0.0× / 0.2
Nav aids · Mediterranean Sea - Eastern Basinlong running	0	31	1	437	— / 0
Structures · Mediterranean Sea - Eastern Basin	0	31	1	35	0.0× / 0.4
Debris · North Pacific Ocean	0	31	1	138	— / 0
Surveys · North Pacific Ocean	0	31	1	91	0.0× / 0.2
Structures · Persian Gulflong running	0	31	1	378	0.0× / 0.2
Nav aids · Philippine Sea	0	31	1	104	— / 0
Volcanic · Philippine Sea	0	31	1	103	0.0× / 0.2
Wrecks · Singapore Straitlong running	0	31	1	525	— / 0
Exercises · Tyrrhenian Sea	0	30.9	0	—	0.0× / 1.6
Nav aids · Black Sea	0	30.7	0	—	— / 0
Surveys · Black Sea	0	30	0	—	0.0× / 0.2
Surveys · Eastern China Sea	0	30	0	—	— / 0
Exercises · Malacca Strait	0	28.7	0	—	0.0× / 0.8
Nav aids · Arafura Sea	0	26.7	0	—	— / 0
Incidents · Great Australian Bight	0	26.7	0	—	0.0× / 0.6
Surveys · Indian Ocean	0	26.7	0	—	0.0× / 0.4
War risk · Persian Gulf	0	26.7	0	—	— / 0
Nav aids · Singapore Strait	0	26.7	0	—	— / 0
Other · South Pacific Ocean	0	26.7	0	—	0.0× / 0.4
Surveys · Timor Sea	0	26.7	0	—	— / 0
Surveys · South China Sea	0	24.5	0	—	— / 0
Surveys · Mediterranean Sea - Eastern Basin	0	20	0	—	0.0× / 3
Cable ops · Labrador Sea	0	18.6	0	—	— / 0
Other · North Atlantic Ocean	0	17.4	0	—	0.0× / 2
Exercises · Mediterranean Sea - Western Basin	0	16	0	—	0.0× / 1.4
Other · Sea of Okhotsk	0	16	0	—	— / 0
Surveys · Gulf of Guinea	0	13	0	—	0.0× / 0.2
Incidents · Laccadive Sea	0	12.7	0	—	0.0× / 0.2
Surveys · Persian Gulf	0	12.7	0	—	0.0× / 0.2
Cable ops · Laccadive Sea	0	10	0	—	0.0× / 0.4
Incidents · Bay of Biscay	0	4.7	0	—	— / 0
Surveys · Strait of Gibraltar	0	4.7	0	—	— / 0
Other · North Pacific Ocean	0	4.6	0	—	0.0× / 2.6
Wrecks · North Pacific Ocean	0	4.6	0	—	0.0× / 0.2

Cite: seahazards.com Sea Ledger, 2005-10, 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.