Sea Ledger, September 2000

2000-09-01 to 2000-09-30 · archive

issued: 417
warning-days in force: 5,665
in force at month end: 198
sea × type cells: 179

baseline: same month, previous 5 years (1999-09, 1998-09, 1997-09)

By type

type	issued	warning-days	in force at end
Cable ops	126	800.8	28
Exercises	70	365.7	11
Nav aids	47	1,625.1	61
Surveys	39	459.3	16
Incidents	36	350.8	14
Quakes	36	107.4	2
Derelicts	14	95.9	3
Ordnance	12	282.7	11
Icebergs	9	49.2	2
Other	6	373.8	13
Containers	6	40.7	2
Missiles	5	60	2
Spills	5	74	1
Debris	4	23.1	2
Wrecks	1	693.1	21
Structures	1	33	2
War risk	0	120	4
Mines	0	43.4	1
Volcanic	0	60	2
Towing	0	7.4	0

By sea and type · 179 cells, most issued first

cell	issued	warning-days	at end	longest d	vs 5 y
Cable ops · South Atlantic Oceansurge	72	249.3	10	179	72× / 1
Cable ops · North Atlantic Oceansurge	22	115.7	3	89	22× / 1
Quakes · South Pacific Ocean	14	41	1	28	1.7× / 8.33
Exercises · North Pacific Oceansurge	12	67	2	26	4.0× / 3
Exercises · Adriatic Seasurge	11	36	0	—	3.0× / 3.67
Nav aids · South Pacific Oceansurgelong running	10	181.7	10	420	15× / 0.67
Exercises · North Atlantic Oceansurge	10	40.4	2	30	5.0× / 2
Incidents · North Pacific Oceansurge	10	39.9	2	71	2.1× / 4.67
Exercises · Aegean Seasurge	9	108.3	4	272	5.4× / 1.67
Ordnance · North Atlantic Oceansurge	8	24.4	0	—	24× / 0.33
Nav aids · South Atlantic Oceansurge	7	173.8	6	210	2.3× / 3
Surveys · Mediterranean Sea - Eastern Basinnew	7	73.6	2	31	new / 0
Cable ops · North Seasurge	7	57.9	2	41	7.0× / 1
Cable ops · Celtic Seasurge	7	48.9	0	—	3.5× / 2
Exercises · Mediterranean Sea - Western Basinsurge	7	8.2	0	—	7.0× / 1
Nav aids · North Seasurge	6	127.2	5	194	2.0× / 3
Surveys · North Seasurge	6	42.6	2	99	2.0× / 3
Cable ops · Irish Sea and St. George's Channelnew	6	36	3	32	new / 0
Icebergs · South Atlantic Oceansurge	6	30.8	2	28	2.3× / 2.67
Nav aids · North Atlantic Oceansurge	5	96.3	3	102	3.8× / 1.33
Missiles · North Pacific Oceansurge	5	60	2	33	2.1× / 2.33
Incidents · South Pacific Oceansurge	5	31.7	3	77	5.0× / 1
Quakes · Indian Oceansurge	5	15	0	—	3.8× / 1.33
Exercises · Mediterranean Sea - Eastern Basinsurge	5	12	1	26	5.0× / 1
Cable ops · English Channelnew	5	11.8	2	19	new / 0
Exercises · Ligurian Seasurge	5	11.6	0	—	7.5× / 0.67
Surveys · English Channelnew	4	34.9	1	36	new / 0
Derelicts · North Atlantic Oceansurge	4	22.8	0	—	12× / 0.33
Surveys · Tyrrhenian Seasurge	4	22.7	0	—	12× / 0.33
Incidents · Philippine Seasurge	4	3.7	1	72	4.0× / 1
Nav aids · Coral Seasurgelong running	3	131.5	5	471	4.5× / 0.67
Nav aids · Tasman Seasurgelong running	3	86.6	3	410	3.0× / 1
Nav aids · Inner Seas off the West Coast of Scotlandsurge	3	35.1	1	158	4.5× / 0.67
Surveys · South Atlantic Oceannew	3	29.8	2	54	new / 0
Surveys · Red Seanew	3	21.7	2	16	new / 0
Debris · North Atlantic Oceannew	3	18.6	1	18	new / 0
Surveys · Celtic Sea	3	9.3	0	—	1.8× / 1.67
Quakes · Philippine Sea	3	7	1	20	0.8× / 4
Incidents · North Atlantic Oceansurge	3	1.3	0	—	2.3× / 1.33
Surveys · Adriatic Sealong running	2	75.5	3	561	6.1× / 0.33
Nav aids · Irish Sea and St. George's Channel	2	69.4	3	150	1.2× / 1.67
Other · North Sealong running	2	60.4	3	520	3.0× / 0.67
Incidents · Indian Ocean	2	54.2	2	76	1.5× / 1.33
Exercises · Black Sea	2	36.4	1	38	6.1× / 0.33
Incidents · South China Sea	2	32.6	1	44	3.0× / 0.67
Spills · Gulf of Mexico	2	32	1	34	0.5× / 3.67
Surveys · Irish Sea and St. George's Channel	2	27.6	0	—	0.7× / 3
Incidents · South Atlantic Ocean	2	18.7	0	—	1.5× / 1.33
Derelicts · Indian Oceannew	2	13.4	0	—	new / 0
Derelicts · Gulf of Mexiconew	2	13.2	1	10	new / 0
Containers · North Atlantic Ocean	2	13.2	0	—	3.0× / 0.67
Containers · South China Seanew	2	13.1	0	—	new / 0
Icebergs · North Atlantic Ocean	2	12.2	0	—	3.0× / 0.67
Surveys · Inner Seas off the West Coast of Scotlandnew	2	11.2	0	—	new / 0
Exercises · Japan Sea	2	9.6	1	21	6.1× / 0.33
Quakes · Halmahera Seanew	2	6	0	—	new / 0
Quakes · North Atlantic Ocean	2	6	0	—	3.0× / 0.67
Ordnance · Philippine Seanew	2	4.8	2	2	new / 0
Derelicts · South China Seanew	2	4.6	1	4	new / 0
Exercises · Tyrrhenian Sea	2	4.5	0	—	2.0× / 1
Cable ops · Ionian Seanew	2	3	0	—	new / 0
Derelicts · Philippine Sea	2	2.9	0	—	3.0× / 0.67
Nav aids · Celtic Sea	2	1.3	1	2	1.2× / 1.67
Cable ops · Eastern China Sea	1	98.6	3	74	1.0× / 1
Nav aids · Mozambique Channel	1	89.1	3	51	1.5× / 0.67
Cable ops · Persian Gulf	1	63.3	1	50	new / 0
Surveys · Sea of Okhotsk	1	44.3	1	68	new / 0
Other · South Atlantic Ocean	1	36.1	1	130	1.5× / 0.67
Incidents · Arabian Sea	1	35.6	2	39	3.0× / 0.33
Nav aids · Gulf of Mexico	1	31.2	1	129	new / 0
Wrecks · Arabian Sea	1	30	1	85	new / 0
Nav aids · Bass Strait	1	29.4	1	29	new / 0
Incidents · Japan Sea	1	26.6	1	26	new / 0
Cable ops · Black Sea	1	19.4	1	19	new / 0
Incidents · Java Sea	1	17.7	1	17	new / 0
Spills · North Atlantic Ocean	1	14	0	—	0.4× / 2.67
Spills · North Pacific Ocean	1	14	0	—	0.5× / 2
Spills · South Pacific Ocean	1	14	0	—	new / 0
Surveys · Ligurian Sea	1	11.6	1	11	new / 0
Nav aids · Andaman or Burma Sea	1	9.6	1	9	new / 0
Exercises · Southern Ocean	1	7.4	0	—	new / 0
Incidents · Gulf of Thailand	1	6.7	0	—	new / 0
Icebergs · Indian Ocean	1	6.2	0	—	new / 0
Exercises · South China Sea	1	5.9	0	—	new / 0
Cable ops · Inner Seas off the West Coast of Scotland	1	5.8	0	—	1.5× / 0.67
Exercises · South Atlantic Ocean	1	5.6	0	—	new / 0
Containers · Tyrrhenian Sea	1	5.4	1	5	new / 0
Other · North Pacific Ocean	1	4.9	0	—	new / 0
Ordnance · Persian Gulf	1	4.9	1	30	3.0× / 0.33
Derelicts · English Channel	1	4.7	1	4	new / 0
Debris · North Pacific Ocean	1	4.5	1	4	new / 0
Ordnance · South Pacific Ocean	1	4.4	0	—	new / 0
Containers · South Pacific Ocean	1	4	1	4	3.0× / 0.33
Nav aids · Great Australian Bight	1	3.9	0	—	new / 0
Quakes · Andaman or Burma Sea	1	3	0	—	new / 0
Quakes · Arafura Sea	1	3	0	—	new / 0
Quakes · Banda Sea	1	3	0	—	3.0× / 0.33
Quakes · Bismarck Sea	1	3	0	—	0.8× / 1.33
Surveys · Black Sea	1	3	1	2	new / 0
Quakes · Coral Sea	1	3	0	—	0.5× / 2
Quakes · Gulf of Tomini	1	3	0	—	3.0× / 0.33
Structures · Mediterranean Sea - Eastern Basin	1	3	1	2	new / 0
Quakes · Molukka Sea	1	3	0	—	1.5× / 0.67
Quakes · North Pacific Ocean	1	3	0	—	0.2× / 4.67
Quakes · South Atlantic Ocean	1	3	0	—	0.6× / 1.67
Quakes · Sulu Sea	1	3	0	—	new / 0
Derelicts · South Pacific Ocean	1	2.9	0	—	3.0× / 0.33
Exercises · Coral Sea	1	2.6	0	—	new / 0
Nav aids · Mediterranean Sea - Western Basin	1	1.3	1	1	1.5× / 0.67
Incidents · Bismarck Sea	1	0.9	0	—	new / 0
Cable ops · Timor Sea	1	0.7	0	—	new / 0
Exercises · South Pacific Ocean	1	0.6	0	—	new / 0
Other · Celtic Sea	1	0.4	0	—	new / 0
Incidents · Arafura Sea	1	0.3	0	—	1.5× / 0.67
Other · Indian Ocean	1	0.3	0	—	new / 0
Incidents · Celtic Sea	1	0.2	0	—	new / 0
Incidents · Tasman Sea	1	0.1	0	—	new / 0
Ordnance · Adriatic Sealong running	0	210	7	477	0.0× / 0.33
War risk · Persian Gulf	0	120	4	240	— / 0
Wrecks · North Sea	0	116.5	3	319	0.0× / 0.67
Nav aids · Gulf of Suez	0	90	3	151	— / 0
Nav aids · North Pacific Ocean	0	90	3	200	0.0× / 0.33
Wrecks · South China Sea	0	90	3	256	0.0× / 0.33
Nav aids · Tyrrhenian Sea	0	81.4	2	210	0.0× / 1.33
Other · Adriatic Sealong running	0	60	2	1,384	— / 0
Wrecks · English Channellong running	0	60	2	458	— / 0
Nav aids · Malacca Strait	0	60	2	351	0.0× / 0.33
Volcanic · North Pacific Oceanlong running	0	60	2	610	— / 0
Wrecks · Persian Gulf	0	60	2	96	— / 0
Wrecks · Red Sea	0	60	2	144	— / 0
Wrecks · Tyrrhenian Sealong running	0	60	2	709	0.0× / 1
Mines · North Sealong running	0	43.4	1	934	— / 0
Other · South Pacific Ocean	0	31.7	1	146	— / 0
Ordnance · Tyrrhenian Sea	0	30.7	1	331	— / 0
Cable ops · Adriatic Sea	0	30.4	1	70	— / 0
Wrecks · South Pacific Ocean	0	30.4	1	148	— / 0
Nav aids · Adriatic Sealong running	0	30	1	557	— / 0
Wrecks · Adriatic Sea	0	30	1	229	0.0× / 0.67
Nav aids · Arabian Sea	0	30	1	52	— / 0
Nav aids · Bay of Bengal	0	30	1	361	— / 0
Nav aids · Caribbean Sea	0	30	1	148	— / 0
Incidents · Coral Sea	0	30	1	39	0.0× / 1
Wrecks · Coral Sea	0	30	1	124	0.0× / 0.33
Other · Greenland Sea	0	30	1	38	— / 0
Other · Gulf of California	0	30	1	187	— / 0
Other · Gulf of Mexico	0	30	1	187	— / 0
Other · Gulf of Oman	0	30	1	65	— / 0
Nav aids · Indian Ocean	0	30	1	48	0.0× / 0.33
Wrecks · Irish Sea and St. George's Channel	0	30	1	89	0.0× / 0.33
Cable ops · Mediterranean Sea - Eastern Basin	0	30	1	204	0.0× / 0.33
Wrecks · North Atlantic Oceanlong running	0	30	1	480	— / 0
Surveys · North Pacific Ocean	0	30	1	189	— / 0
Nav aids · Philippine Sea	0	30	1	78	— / 0
Other · Red Sealong running	0	30	1	1,758	— / 0
Wrecks · South Atlantic Ocean	0	30	1	32	0.0× / 0.33
Cable ops · South China Sea	0	30	1	56	— / 0
Other · South China Sealong running	0	30	1	403	— / 0
Structures · South China Sealong running	0	30	1	444	— / 0
Nav aids · Timor Sea	0	30	1	249	— / 0
Derelicts · Celtic Sea	0	28.4	0	—	— / 0
Surveys · Bay of Biscay	0	21.5	0	—	— / 0
Incidents · Ligurian Sea	0	21.4	0	—	— / 0
Wrecks · Makassar Strait	0	21.4	0	—	— / 0
Incidents · Sea of Okhotsk	0	21.4	0	—	— / 0
Wrecks · Kattegat	0	14.8	0	—	— / 0
Nav aids · Mediterranean Sea - Eastern Basin	0	14	0	—	— / 0
Nav aids · Persian Gulf	0	12.3	0	—	0.0× / 1
Incidents · Persian Gulf	0	7.4	0	—	— / 0
Towing · South China Sea	0	7.4	0	—	— / 0
Exercises · Ionian Sea	0	6.2	0	—	0.0× / 0.33
Containers · Eastern China Sea	0	5	0	—	— / 0
Ordnance · Japan Sea	0	3.5	0	—	— / 0
Exercises · Gulf of Aden	0	3.4	0	—	— / 0
Derelicts · Tyrrhenian Sea	0	3	0	—	— / 0
Quakes · Celebes Sea	0	2.4	0	—	0.0× / 0.33
Incidents · Eastern China Sea	0	0.4	0	—	— / 0
Cable ops · Bass Strait	0	0	0	—	— / 0
Cable ops · Japan Sea	0	0	0	—	— / 0
Surveys · Mediterranean Sea - Western Basin	0	0	0	—	0.0× / 0.67

Cite: seahazards.com Sea Ledger, 2000-09, 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.