Sea Ledger, August 2005

2005-08-01 to 2005-08-31 · archive

issued: 306
warning-days in force: 9,550
in force at month end: 313
sea × type cells: 216

baseline: same month, previous 5 years (2004-08, 2003-08, 2002-08, 2001-08, 2000-08)

By type

type	issued	warning-days	in force at end
Exercises	78	770.1	28
Incidents	44	703.3	23
Quakes	32	96.4	2
Nav aids	31	3,204.3	106
Surveys	30	1,315.2	45
Cable ops	24	786.2	25
Other	16	658	20
Derelicts	12	65.8	1
Wrecks	8	1,046.4	33
Debris	8	110.3	3
Missiles	6	66.6	2
Spills	4	66	1
Ordnance	4	239.7	9
Icebergs	4	13.5	2
Containers	3	11.2	1
Towing	1	14.6	1
Structures	1	57.3	2
Restricted	0	169.7	4
War risk	0	31	1
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
Exercises · South Atlantic Oceansurge	16	83.9	3	30	16× / 1
Exercises · Laccadive Seasurge	13	43.6	2	30	2.4× / 5.4
Quakes · North Pacific Ocean	12	34.5	1	33	1.9× / 6.4
Exercises · North Pacific Ocean	11	115.8	3	36	1.3× / 8.4
Quakes · South Pacific Ocean	11	33	0	—	1.2× / 9
Incidents · North Pacific Ocean	8	152.5	5	51	0.7× / 11.6
Exercises · North Atlantic Ocean	7	56.9	2	238	0.6× / 11.8
Exercises · Aegean Seasurge	6	148.5	5	240	4.3× / 1.4
Missiles · North Pacific Ocean	6	66.6	2	55	1.1× / 5.6
Exercises · Bay of Bengalsurge	6	13	3	30	2.1× / 2.8
Other · North Seasurge	5	163.7	4	134	2.8× / 1.8
Incidents · Philippine Sea	5	65.3	0	—	1.4× / 3.6
Incidents · South Atlantic Ocean	5	16.5	1	25	1.1× / 4.6
Cable ops · South China Sea	4	134.8	4	143	1.4× / 2.8
Incidents · South Pacific Oceanlong running	4	111.9	4	429	0.9× / 4.4
Nav aids · Inner Seas off the West Coast of Scotland	4	96.4	4	83	1.7× / 2.4
Other · Caribbean Seanew	4	72.7	3	30	new / 0
Surveys · Gulf of Mexiconew	4	65.3	4	16	new / 0
Nav aids · North Atlantic Ocean	4	62.3	2	102	1.0× / 4
Spills · Gulf of Mexico	4	48	1	43	1.4× / 2.8
Incidents · North Atlantic Ocean	4	31.2	1	29	0.9× / 4.6
Incidents · Tasman Seasurge	4	28.6	3	35	6.7× / 0.6
Icebergs · Southern Oceansurge	4	13.5	2	27	4.0× / 1
Nav aids · North Sea	3	265.8	9	288	0.5× / 5.8
Ordnance · North Seanew	3	205.6	8	104	new / 0
Nav aids · Indian Oceansurge	3	159.9	6	144	5.0× / 0.6
Surveys · Celtic Sea	3	87.2	2	62	0.9× / 3.2
Incidents · South China Sea	3	65.9	3	50	1.5× / 2
Surveys · North Atlantic Oceansurge	3	58.1	1	107	2.5× / 1.2
Cable ops · South Atlantic Ocean	3	39.6	2	147	0.1× / 29.6
Exercises · Black Sea	3	31.5	0	—	0.3× / 8.8
Surveys · South China Seanew	3	13.5	1	21	new / 0
Nav aids · Arabian Sealong running	2	227.4	6	378	1.1× / 1.8
Wrecks · Arabian Sealong running	2	140	5	365	5.0× / 0.4
Nav aids · English Channel	2	125.2	4	260	0.9× / 2.2
Nav aids · Mediterranean Sea - Western Basin	2	96.7	4	253	2.0× / 1
Cable ops · Mediterranean Sea - Eastern Basin	2	90.6	3	83	1.3× / 1.6
Wrecks · North Sea	2	84.1	3	313	2.5× / 0.8
Nav aids · Irish Sea and St. George's Channel	2	78.9	3	118	0.9× / 2.2
Nav aids · Gulf of Mexiconew	2	77.5	3	142	new / 0
Exercises · Yellow Sea	2	72.6	2	35	2.5× / 0.8
Incidents · Indian Ocean	2	71.7	2	137	0.4× / 5
Cable ops · Sea of Okhotsk	2	64.5	3	48	5.0× / 0.4
Surveys · Mediterranean Sea - Eastern Basin	2	62.7	0	—	1.1× / 1.8
Surveys · North Pacific Oceannew	2	56.2	1	30	new / 0
Exercises · Japan Sea	2	44.3	2	35	1.4× / 1.4
Other · Mediterranean Sea - Eastern Basin	2	28.6	1	28	2.0× / 1
Surveys · North Sea	2	25.4	2	23	0.4× / 4.6
Surveys · Coral Seanew	2	22.3	1	21	new / 0
Derelicts · South Atlantic Ocean	2	18.6	0	—	0.9× / 2.2
Cable ops · Arabian Seanew	2	18.4	2	9	new / 0
Debris · Tyrrhenian Seanew	2	13	0	—	new / 0
Derelicts · South China Sea	2	8.5	0	—	10× / 0.2
Derelicts · Tyrrhenian Sea	2	7.5	1	16	2.5× / 0.8
Exercises · Indian Ocean	2	5.6	0	—	5.0× / 0.4
Containers · South Atlantic Oceannew	2	4.8	1	4	new / 0
Quakes · South Atlantic Ocean	2	3.9	1	27	1.4× / 1.4
Derelicts · Philippine Seanew	2	3.6	0	—	new / 0
Exercises · Gulf of Mexico	2	1.7	0	—	2.5× / 0.8
Nav aids · Tasman Sealong running	1	186.7	6	374	0.5× / 2
Nav aids · South Pacific Ocean	1	132.1	4	218	0.3× / 3.4
Surveys · Arctic Oceanlong running	1	109.4	4	601	new / 0
Nav aids · Celtic Sea	1	96.3	3	298	0.5× / 2
Wrecks · South China Sealong running	1	93.4	3	368	2.5× / 0.4
Wrecks · South Atlantic Ocean	1	76.6	2	171	5.0× / 0.2
Cable ops · North Sea	1	67.7	2	127	0.4× / 2.6
Nav aids · Mozambique Channel	1	65.5	3	141	1.7× / 0.6
Other · Persian Gulf	1	61.3	1	63	1.3× / 0.8
Nav aids · Persian Gulf	1	60.6	2	63	0.7× / 1.4
Nav aids · Andaman or Burma Sea	1	46.1	1	231	1.3× / 0.8
Incidents · Mediterranean Sea - Eastern Basin	1	42.4	1	134	1.7× / 0.6
Wrecks · Indian Ocean	1	40.3	1	268	new / 0
Cable ops · Eastern China Sea	1	37.4	0	—	0.4× / 2.4
Exercises · Mediterranean Sea - Eastern Basin	1	37	1	33	0.4× / 2.8
Surveys · Philippine Sea	1	36.6	2	116	1.7× / 0.6
Debris · North Pacific Ocean	1	36.1	2	77	1.3× / 0.8
Cable ops · Persian Gulf	1	30	1	51	0.8× / 1.2
Incidents · Yellow Sea	1	28.1	1	36	5.0× / 0.2
Surveys · Eastern China Sea	1	23.4	1	23	5.0× / 0.2
Wrecks · Bay of Bengal	1	21.4	1	21	5.0× / 0.2
Cable ops · Gulf of Thailand	1	19.6	0	—	new / 0
Incidents · Gulf of Aden	1	17	0	—	5.0× / 0.2
Derelicts · Arabian Sea	1	15.2	0	—	5.0× / 0.2
Towing · Black Sea	1	14.6	1	14	new / 0
Cable ops · Bass Strait	1	12.6	1	58	5.0× / 0.2
Other · North Atlantic Ocean	1	12.6	1	12	0.7× / 1.4
Incidents · Bay of Biscay	1	11.6	1	11	1.3× / 0.8
Surveys · South Atlantic Ocean	1	10.2	1	10	0.5× / 2.2
Surveys · Yellow Sea	1	9.3	1	9	new / 0
Incidents · Gulf of Mexico	1	9.1	0	—	new / 0
Cable ops · Celtic Sea	1	8.7	0	—	0.4× / 2.4
Cable ops · Japan Sea	1	7.9	0	—	5.0× / 0.2
Surveys · Tyrrhenian Sea	1	7.4	0	—	1.0× / 1
Nav aids · Rio de La Plata	1	7.3	1	7	new / 0
Cable ops · Sea of Marmara	1	7.1	0	—	new / 0
Structures · Black Sea	1	6.7	1	6	new / 0
Other · South Atlantic Ocean	1	6.7	0	—	1.7× / 0.6
Debris · Tasman Sea	1	6.7	0	—	new / 0
Debris · Coral Sea	1	6.6	0	—	new / 0
Debris · South Atlantic Ocean	1	6.6	0	—	new / 0
Containers · Arabian Sea	1	6.4	0	—	new / 0
Exercises · Sulu Sea	1	6.4	0	—	5.0× / 0.2
Exercises · South Pacific Ocean	1	6.2	0	—	0.6× / 1.6
Derelicts · Mediterranean Sea - Eastern Basin	1	6.1	0	—	0.4× / 2.4
Debris · Caribbean Sea	1	6	0	—	5.0× / 0.2
Cable ops · Bristol Channel	1	5.6	0	—	0.5× / 2
Quakes · Indian Ocean	1	5.5	0	—	0.6× / 1.8
Surveys · English Channel	1	5.3	1	5	0.3× / 3.4
Derelicts · Ionian Sea	1	5.3	0	—	new / 0
Surveys · Black Sea	1	5.2	0	—	1.7× / 0.6
Exercises · Malacca Strait	1	4.7	1	4	1.3× / 0.8
Debris · North Sea	1	4.3	0	—	1.7× / 0.6
Cable ops · Tyrrhenian Sea	1	3.4	0	—	2.5× / 0.4
Quakes · Andaman or Burma Sea	1	3	0	—	1.3× / 0.8
Quakes · Arabian Sea	1	3	0	—	1.7× / 0.6
Quakes · Arctic Ocean	1	3	0	—	new / 0
Quakes · Banda Sea	1	3	0	—	0.5× / 2.2
Quakes · Molukka Sea	1	3	0	—	1.3× / 0.8
Quakes · Philippine Sea	1	3	0	—	0.5× / 2
Cable ops · Inner Seas off the West Coast of Scotland	1	2.5	1	2	5.0× / 0.2
Surveys · Persian Gulf	1	2.5	1	2	5.0× / 0.2
Exercises · Andaman or Burma Sea	1	1.9	0	—	2.5× / 0.4
Exercises · Arabian Sea	1	1.9	0	—	0.6× / 1.6
Other · Philippine Sea	1	1.8	0	—	5.0× / 0.2
Incidents · Laccadive Sea	1	1.3	1	1	5.0× / 0.2
Incidents · North Sea	1	1.3	0	—	new / 0
Exercises · Persian Gulf	1	1.1	0	—	1.3× / 0.8
Derelicts · South Pacific Ocean	1	1	0	—	1.0× / 1
Other · Inner Seas off the West Coast of Scotland	1	0.6	0	—	2.5× / 0.4
Exercises · Philippine Sea	1	0.5	1	0	1.7× / 0.6
Incidents · Japan Sea	1	0.1	0	—	1.7× / 0.6
Ordnance · Laccadive Sea	1	0.1	0	—	new / 0
Incidents · Mediterranean Sea - Western Basin	1	0	0	—	5.0× / 0.2
Nav aids · South Atlantic Ocean	0	217	7	263	0.0× / 6
Surveys · Baffin Baylong running	0	155	5	699	— / 0
Nav aids · Bay of Bengal	0	155	5	189	0.0× / 0.4
Nav aids · Coral Sealong running	0	155	5	436	0.0× / 1.6
Nav aids · Tyrrhenian Sea	0	155	5	286	0.0× / 1.8
Nav aids · Caribbean Sea	0	124	4	257	— / 0
Wrecks · Irish Sea and St. George's Channel	0	124	4	359	— / 0
Nav aids · North Pacific Oceanlong running	0	124	4	375	0.0× / 0.6
Other · Bay of Bengal	0	93	3	182	0.0× / 0.4
Surveys · Bay of Bengal	0	93	3	302	0.0× / 0.2
Surveys · Beaufort Sealong running	0	93	3	601	— / 0
Nav aids · Great Australian Bight	0	93	3	270	0.0× / 0.8
Exercises · Ionian Sea	0	93	3	240	0.0× / 0.6
Wrecks · Mediterranean Sea - Eastern Basinlong running	0	93	3	429	0.0× / 0.2
Nav aids · Red Sealong running	0	93	3	394	0.0× / 0.4
Nav aids · Bass Strait	0	62	2	204	0.0× / 0.4
Wrecks · English Channel	0	62	2	85	— / 0
Piracy · Persian Gulf	0	62	2	204	— / 0
Surveys · Sea of Okhotsk	0	62	2	83	0.0× / 0.8
Wrecks · South Pacific Oceanlong running	0	62	2	458	— / 0
Surveys · Tasman Sea	0	62	2	218	— / 0
Wrecks · Yellow Sealong running	0	62	2	441	— / 0
Restricted · Black Sea	0	59.5	1	50	— / 0
Surveys · Arabian Sea	0	47.3	1	172	— / 0
Cable ops · North Atlantic Ocean	0	41.7	1	59	0.0× / 6
Nav aids · Arafura Sea	0	39.3	1	76	— / 0
Volcanic · Andaman or Burma Sea	0	31	1	86	— / 0
Other · Arabian Sea	0	31	1	72	— / 0
Debris · Arctic Ocean	0	31	1	253	— / 0
Surveys · Bass Strait	0	31	1	102	0.0× / 0.4
Cable ops · Bay of Bengal	0	31	1	125	0.0× / 0.6
Cable ops · Black Sea	0	31	1	113	0.0× / 0.8
Wrecks · Caribbean Sea	0	31	1	224	— / 0
Surveys · Chukchi Sea	0	31	1	134	— / 0
Other · Coral Sea	0	31	1	59	0.0× / 0.2
Surveys · Greenland Sealong running	0	31	1	917	— / 0
Wrecks · Gulf of Mexico	0	31	1	338	— / 0
Ordnance · Gulf of Omanlong running	0	31	1	428	— / 0
Nav aids · Gulf of Suez	0	31	1	277	0.0× / 0.6
Other · Indian Ocean	0	31	1	105	— / 0
Restricted · Indian Ocean	0	31	1	129	— / 0
Surveys · Indian Ocean	0	31	1	240	— / 0
Nav aids · Ionian Sea	0	31	1	63	0.0× / 0.4
Restricted · Irish Sea and St. George's Channel	0	31	1	68	— / 0
Cable ops · Labrador Sea	0	31	1	68	— / 0
Cable ops · Laccadive Sea	0	31	1	42	— / 0
Nav aids · Laccadive Sea	0	31	1	55	— / 0
Wrecks · Malacca Strait	0	31	1	327	— / 0
Nav aids · Mediterranean Sea - Eastern Basinlong running	0	31	1	376	0.0× / 1
Restricted · North Atlantic Ocean	0	31	1	51	— / 0
Other · North Pacific Ocean	0	31	1	219	0.0× / 1
Wrecks · North Pacific Ocean	0	31	1	219	— / 0
Structures · Persian Gulf	0	31	1	317	— / 0
War risk · Persian Gulflong running	0	31	1	485	— / 0
Nav aids · Philippine Sea	0	31	1	43	— / 0
Volcanic · Philippine Sea	0	31	1	42	0.0× / 0.6
Other · Sea of Okhotsk	0	31	1	48	— / 0
Nav aids · Singapore Strait	0	31	1	178	0.0× / 0.2
Wrecks · Singapore Straitlong running	0	31	1	464	— / 0
Cable ops · South Pacific Ocean	0	31	1	186	0.0× / 0.6
Other · South Pacific Ocean	0	31	1	125	0.0× / 0.2
Surveys · Strait of Gibraltar	0	31	1	95	— / 0
Other · Tasman Sea	0	31	1	295	0.0× / 0.6
Surveys · Timor Sea	0	31	1	55	— / 0
Cable ops · Norwegian Sea	0	30.7	0	—	0.0× / 0.8
Surveys · Adriatic Sea	0	16.4	0	—	— / 0
Structures · Arabian Sea	0	16.3	0	—	— / 0

Cite: seahazards.com Sea Ledger, 2005-08, 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.