Sea Ledger, September 2002

2002-09-01 to 2002-09-30 · archive

issued: 381
warning-days in force: 5,859
in force at month end: 191
sea × type cells: 180

baseline: same month, previous 5 years (2001-09, 2000-09, 1999-09, 1998-09, 1997-09)

By type

type	issued	warning-days	in force at end
Exercises	82	580.8	19
Incidents	79	1,341.4	51
Cable ops	49	516.6	13
Quakes	39	116.7	4
Nav aids	34	1,276.8	39
Other	26	382.7	12
Surveys	24	496.2	14
Ordnance	12	162.7	5
Derelicts	11	55.6	4
Icebergs	10	83.1	2
Debris	6	30.7	2
Missiles	5	60	2
Containers	3	18.4	0
Spills	1	1	1
Wrecks	0	600	20
War risk	0	60	2
Towing	0	30	1
Volcanic	0	46	0

By sea and type · 180 cells, most issued first

cell	issued	warning-days	at end	longest d	vs 5 y
Cable ops · South Atlantic Ocean	33	101.2	2	35	1.9× / 17.8
Exercises · North Atlantic Oceansurge	15	104	3	45	3.4× / 4.4
Incidents · North Pacific Ocean	13	344	14	68	1.8× / 7.2
Quakes · South Pacific Ocean	13	37.4	2	26	1.3× / 10.4
Exercises · Black Seasurge	10	79.9	0	—	10× / 1
Exercises · Laccadive Seanew	8	45.8	2	32	new / 0
Incidents · Coral Seasurge	8	31.5	3	16	5.7× / 1.4
Incidents · Tasman Seasurge	8	12.3	0	—	20× / 0.4
Incidents · Philippine Seasurge	7	178.7	8	63	2.9× / 2.4
Incidents · South China Seasurge	7	141.6	7	128	3.9× / 1.8
Incidents · South Pacific Oceansurge	6	127.4	4	70	2.3× / 2.6
Nav aids · North Sealong running	6	78.4	3	708	1.9× / 3.2
Exercises · North Pacific Ocean	6	33.5	0	—	1.0× / 6
Exercises · Bay of Bengalnew	6	19.2	1	28	new / 0
Quakes · Solomon Seasurge	6	16.9	2	6	4.3× / 1.4
Exercises · Indian Oceansurge	6	13	2	22	15× / 0.4
Nav aids · Tyrrhenian Seasurgelong running	5	111.8	4	524	3.1× / 1.6
Incidents · Indian Oceansurge	5	75.2	2	61	2.3× / 2.2
Surveys · Philippine Seasurge	5	74.7	4	44	25× / 0.2
Incidents · South Atlantic Oceansurge	5	63	2	69	4.2× / 1.2
Missiles · North Pacific Ocean	5	60	2	34	1.5× / 3.4
Exercises · Arabian Seasurge	5	19.1	1	32	25× / 0.2
Quakes · Bismarck Seasurge	5	15.2	0	—	5.0× / 1
Incidents · North Atlantic Ocean	5	8.3	0	—	1.8× / 2.8
Surveys · North Atlantic Oceansurge	4	59.2	2	129	4.0× / 1
Icebergs · Labrador Seasurge	4	49.2	0	—	5.0× / 0.8
Incidents · Arabian Seasurge	4	34.2	2	42	10× / 0.4
Icebergs · South Atlantic Ocean	4	26.4	0	—	1.3× / 3
Exercises · Japan Seasurge	4	25.3	0	—	6.7× / 0.6
Other · Labrador Seanew	4	25.3	0	—	new / 0
Other · North Atlantic Oceansurge	4	22.2	0	—	10× / 0.4
Ordnance · Eastern China Seanew	4	15.9	0	—	new / 0
Exercises · Adriatic Sea	4	12.3	2	9	0.8× / 5
Exercises · Ionian Seasurge	4	11.8	0	—	4.0× / 1
Ordnance · Yellow Seanew	4	4.3	2	10	new / 0
Cable ops · South China Seasurge	3	70.7	3	163	5.0× / 0.6
Other · Mediterranean Sea - Eastern Basinsurge	3	59.5	2	40	7.5× / 0.4
Cable ops · North Atlantic Ocean	3	50.3	1	34	0.5× / 5.8
Nav aids · Indian Oceansurge	3	29.7	1	25	15× / 0.2
Surveys · Ionian Seasurge	3	25.7	0	—	15× / 0.2
Derelicts · North Atlantic Oceansurge	3	19.3	0	—	2.1× / 1.4
Exercises · Tyrrhenian Sea	3	15.5	1	24	1.1× / 2.6
Exercises · South Pacific Oceansurge	3	13.2	1	20	5.0× / 0.6
Quakes · Andaman or Burma Seasurge	3	9	0	—	15× / 0.2
Nav aids · North Atlantic Oceanlong running	2	95.7	2	765	0.6× / 3.4
Nav aids · Tasman Sea	2	95.7	3	196	1.7× / 1.2
Nav aids · South Atlantic Ocean	2	77.2	2	87	0.5× / 4
Other · Japan Sea	2	63.3	2	32	3.3× / 0.6
Other · North Sealong running	2	62.1	2	910	2.5× / 0.8
Nav aids · Arabian Seanew	2	61	3	40	new / 0
Nav aids · Celtic Sealong running	2	45.4	1	538	1.3× / 1.6
Incidents · Persian Gulf	2	42.9	1	161	10× / 0.2
Surveys · South Atlantic Ocean	2	41.4	1	30	2.0× / 1
Other · Yellow Sea	2	41.3	1	32	10× / 0.2
Nav aids · Irish Sea and St. George's Channellong running	2	35.7	1	880	1.3× / 1.6
Cable ops · Persian Gulf	2	30	1	65	5.0× / 0.4
Surveys · Mediterranean Sea - Eastern Basin	2	25.6	1	30	1.4× / 1.4
Surveys · English Channel	2	25.2	0	—	2.5× / 0.8
Cable ops · Philippine Sea	2	22.4	0	—	3.3× / 0.6
Cable ops · Tyrrhenian Seanew	2	20	1	16	new / 0
Derelicts · Mediterranean Sea - Eastern Basinnew	2	19.3	1	27	new / 0
Ordnance · North Atlantic Ocean	2	17.9	0	—	0.8× / 2.6
Exercises · South Atlantic Ocean	2	15.1	1	19	3.3× / 0.6
Exercises · Mediterranean Sea - Western Basin	2	11.8	1	10	0.8× / 2.4
Surveys · North Sea	2	9.9	0	—	0.6× / 3.2
Debris · Mediterranean Sea - Eastern Basinnew	2	9.7	1	9	new / 0
Derelicts · North Pacific Oceannew	2	8.8	2	6	new / 0
Quakes · North Pacific Ocean	2	8.2	0	—	0.5× / 4.4
Icebergs · Southern Ocean	2	7.5	2	3	1.3× / 1.6
Quakes · Philippine Sea	2	6	0	—	0.6× / 3.2
Derelicts · South Atlantic Ocean	2	4.2	0	—	5.0× / 0.4
Nav aids · English Channel	2	3.8	0	—	1.7× / 1.2
Other · Inner Seas off the West Coast of Scotlandnew	2	1.5	0	—	new / 0
Nav aids · Coral Sealong running	1	117	4	893	0.7× / 1.4
Nav aids · Persian Gulf	1	101.6	3	300	1.7× / 0.6
Exercises · Aegean Sea	1	69.5	2	270	0.2× / 4.4
Cable ops · Mediterranean Sea - Eastern Basin	1	54.6	1	40	1.3× / 0.8
Incidents · Japan Sea	1	54.4	2	47	5.0× / 0.2
Incidents · Mediterranean Sea - Eastern Basin	1	54.3	2	67	5.0× / 0.2
Exercises · Malacca Strait	1	34.2	1	33	5.0× / 0.2
Nav aids · Inner Seas off the West Coast of Scotland	1	30	1	46	0.7× / 1.4
Other · Persian Gulf	1	30	1	142	1.7× / 0.6
Incidents · Ionian Sea	1	28.3	1	28	5.0× / 0.2
Exercises · Mediterranean Sea - Eastern Basin	1	27.6	0	—	0.6× / 1.8
Surveys · Bay of Biscay	1	27	0	—	new / 0
Incidents · North Sea	1	26.8	1	26	new / 0
Cable ops · Bay of Bengal	1	26.4	1	39	5.0× / 0.2
Surveys · Gulf of Guinea	1	26.4	1	26	new / 0
Ordnance · Persian Gulf	1	9.1	0	—	1.7× / 0.6
Other · South Atlantic Ocean	1	9.1	0	—	1.3× / 0.8
Incidents · Bismarck Sea	1	7.6	0	—	5.0× / 0.2
Containers · English Channel	1	6.5	0	—	new / 0
Debris · Gulf of Mexico	1	6.4	0	—	new / 0
Debris · Philippine Sea	1	6.4	0	—	2.5× / 0.4
Incidents · Caribbean Sea	1	6.2	0	—	new / 0
Debris · North Atlantic Ocean	1	6.2	1	6	1.7× / 0.6
Containers · Great Australian Bight	1	6	0	—	new / 0
Containers · Indian Ocean	1	5.9	0	—	new / 0
Surveys · Irish Sea and St. George's Channel	1	5.6	0	—	0.5× / 2.2
Cable ops · Laccadive Sea	1	4.4	1	4	new / 0
Other · Malacca Strait	1	4.4	1	4	new / 0
Derelicts · Caribbean Sea	1	3.9	1	3	new / 0
Ordnance · Greenland Sea	1	3.1	0	—	new / 0
Quakes · Arabian Sea	1	3	0	—	new / 0
Quakes · Arctic Ocean	1	3	0	—	new / 0
Quakes · Coral Sea	1	3	0	—	0.6× / 1.8
Quakes · Eastern China Sea	1	3	0	—	new / 0
Quakes · Greenland Sea	1	3	0	—	new / 0
Quakes · Indian Ocean	1	3	0	—	0.4× / 2.4
Quakes · South Atlantic Ocean	1	3	0	—	0.8× / 1.2
Quakes · Tyrrhenian Sea	1	3	0	—	5.0× / 0.2
Debris · English Channel	1	2	0	—	new / 0
Nav aids · Andaman or Burma Sea	1	1.6	0	—	5.0× / 0.2
Other · Gulf of Guinea	1	1.6	1	1	new / 0
Other · North Pacific Ocean	1	1.6	0	—	5.0× / 0.2
Incidents · Bay of Bengal	1	1.2	0	—	new / 0
Spills · North Atlantic Ocean	1	1	1	1	0.5× / 2
Nav aids · Arafura Sea	1	0.9	0	—	5.0× / 0.2
Incidents · English Channel	1	0.9	0	—	new / 0
Nav aids · Bass Strait	1	0.8	0	—	5.0× / 0.2
Cable ops · Bass Strait	1	0.6	0	—	new / 0
Surveys · Black Sea	1	0.4	1	0	5.0× / 0.2
Other · Coral Sea	1	0.4	0	—	new / 0
Other · Ionian Sea	1	0.4	0	—	new / 0
Incidents · Eastern China Sea	1	0.2	0	—	new / 0
Derelicts · Coral Sea	1	0.1	0	—	5.0× / 0.2
Exercises · Andaman or Burma Sea	1	0	0	—	new / 0
Wrecks · English Channel	0	90	3	347	0.0× / 0.2
Wrecks · North Sealong running	0	90	3	466	0.0× / 0.4
Nav aids · South Pacific Ocean	0	61	2	307	0.0× / 2.8
Wrecks · Baltic Sealong running	0	60	2	640	— / 0
Wrecks · Coral Sealong running	0	60	2	602	0.0× / 0.2
War risk · Persian Gulf	0	60	2	241	— / 0
Wrecks · South China Sealong running	0	60	2	368	0.0× / 0.4
Wrecks · Tyrrhenian Sealong running	0	60	2	599	0.0× / 0.6
Surveys · Mediterranean Sea - Western Basin	0	50.5	1	160	0.0× / 0.4
Cable ops · Yellow Sea	0	47	1	40	0.0× / 0.2
Volcanic · Philippine Sea	0	46	0	—	0.0× / 0.2
Surveys · Eastern China Sea	0	44.2	1	100	— / 0
Incidents · Sulu Sea	0	40.9	0	—	— / 0
Nav aids · Adriatic Sealong running	0	30	1	486	— / 0
Incidents · Adriatic Sea	0	30	1	44	— / 0
Other · Bass Strait	0	30	1	178	— / 0
Wrecks · Celtic Sea	0	30	1	318	— / 0
Nav aids · Eastern China Sealong running	0	30	1	707	— / 0
Other · Greenland Sealong running	0	30	1	768	— / 0
Surveys · Gulf of Oman	0	30	1	74	— / 0
Nav aids · Gulf of Suez	0	30	1	207	— / 0
Ordnance · Indian Ocean	0	30	1	242	— / 0
Nav aids · Ionian Sea	0	30	1	111	0.0× / 0.2
Wrecks · Irish Sea and St. George's Channellong running	0	30	1	819	0.0× / 0.2
Cable ops · Japan Sea	0	30	1	46	— / 0
Wrecks · Kattegatlong running	0	30	1	588	— / 0
Ordnance · Ligurian Sea	0	30	1	225	— / 0
Wrecks · Makassar Strait	0	30	1	111	— / 0
Nav aids · Malacca Strait	0	30	1	157	0.0× / 0.2
Ordnance · North Pacific Ocean	0	30	1	354	0.0× / 0.2
Wrecks · North Pacific Ocean	0	30	1	89	— / 0
Exercises · Norwegian Sea	0	30	1	47	— / 0
Surveys · Persian Gulf	0	30	1	62	— / 0
Nav aids · Red Sea	0	30	1	196	0.0× / 0.2
Nav aids · Savu Sea	0	30	1	209	— / 0
Towing · Sea of Marmara	0	30	1	33	— / 0
Nav aids · Skagerraklong running	0	30	1	454	— / 0
Wrecks · Skagerraklong running	0	30	1	691	— / 0
Nav aids · Solomon Sea	0	30	1	218	— / 0
Incidents · Tyrrhenian Sea	0	30	1	31	— / 0
Cable ops · Black Sea	0	24.4	0	—	0.0× / 0.4
Ordnance · Tasman Sea	0	22.4	0	—	— / 0
Cable ops · Eastern China Sea	0	21	0	—	0.0× / 1.2
Nav aids · Singapore Strait	0	20.5	0	—	0.0× / 0.4
Nav aids · Timor Sea	0	20.5	0	—	— / 0
Surveys · Tyrrhenian Sea	0	18.9	0	—	0.0× / 1.6
Nav aids · Alboran Sea	0	18.5	0	—	— / 0
Cable ops · Celtic Sea	0	8.8	0	—	0.0× / 3
Cable ops · English Channel	0	4.8	0	—	0.0× / 1
Incidents · Andaman or Burma Sea	0	1.5	0	—	— / 0
Surveys · Sea of Okhotsk	0	1.5	0	—	0.0× / 0.2
Cable ops · Sulu Sea	0	0	0	—	— / 0
Containers · Tasman Sea	0	0	0	—	0.0× / 0.2

Cite: seahazards.com Sea Ledger, 2002-09, 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.