Sea Ledger, May 2002

2002-05-01 to 2002-05-31 · archive

issued: 354
warning-days in force: 5,701
in force at month end: 181
sea × type cells: 188

baseline: same month, previous 5 years (2001-05, 2000-05, 1999-05, 1998-05, 1997-05)

By type

type	issued	warning-days	in force at end
Exercises	78	540.3	21
Cable ops	67	533.3	20
Incidents	62	1,012.9	28
Nav aids	31	1,477.1	43
Quakes	29	86.3	2
Other	17	507.5	15
Derelicts	16	132.3	5
Surveys	16	325.9	12
Icebergs	16	53.3	3
Containers	7	34.4	1
Missiles	6	62	2
Wrecks	4	651.8	20
Ordnance	3	105.5	3
Spills	1	16	1
Debris	1	7.6	0
War risk	0	62	2
Structures	0	31	1
Volcanic	0	62	2

By sea and type · 188 cells, most issued first

cell	issued	warning-days	at end	longest d	vs 5 y
Cable ops · South Atlantic Ocean	27	126.2	4	33	1.3× / 20.6
Exercises · North Pacific Oceansurge	19	53.1	3	32	2.6× / 7.2
Exercises · Laccadive Seasurge	9	37.7	2	29	45× / 0.2
Cable ops · North Atlantic Ocean	9	34.1	1	38	1.6× / 5.6
Cable ops · English Channelsurge	9	25.1	2	31	4.1× / 2.2
Incidents · North Pacific Ocean	8	282.6	8	70	1.4× / 5.8
Icebergs · Southern Oceansurge	8	32.2	2	35	10× / 0.8
Incidents · Indian Oceansurge	7	32	1	75	3.5× / 2
Quakes · South Pacific Ocean	7	23.3	0	—	0.8× / 8.4
Incidents · Coral Seasurge	7	11.2	0	—	3.5× / 2
Nav aids · North Sealong running	6	121	2	617	1.4× / 4.4
Incidents · Mediterranean Sea - Eastern Basinsurge	6	91.8	5	67	15× / 0.4
Incidents · South China Seasurge	6	89.3	3	65	10× / 0.6
Missiles · North Pacific Ocean	6	62	2	36	1.8× / 3.4
Incidents · South Atlantic Oceansurge	6	32.6	1	68	2.7× / 2.2
Exercises · Arabian Seasurge	6	20.6	1	37	30× / 0.2
Incidents · North Atlantic Ocean	5	66	1	71	1.8× / 2.8
Exercises · North Atlantic Ocean	5	51.6	4	63	0.8× / 6.6
Exercises · Tyrrhenian Seasurge	5	45.2	1	31	2.5× / 2
Exercises · South Pacific Oceansurge	5	7.9	1	7	25× / 0.2
Icebergs · North Atlantic Oceansurge	5	5	0	—	2.5× / 2
Incidents · Philippine Seasurge	4	144.4	3	68	2.2× / 1.8
Nav aids · North Atlantic Oceansurgelong running	4	85.3	3	643	2.0× / 2
Nav aids · Tyrrhenian Seasurgelong running	4	68.8	2	402	2.9× / 1.4
Nav aids · Bristol Channelsurge	4	27.9	1	23	10× / 0.4
Exercises · Black Seasurge	4	26.1	1	21	4.0× / 1
Exercises · South Atlantic Oceansurge	4	24.4	0	—	3.3× / 1.2
Surveys · Celtic Sea	4	23.1	0	—	0.3× / 12.2
Exercises · Persian Gulfnew	4	15.1	0	—	new / 0
Quakes · North Pacific Ocean	4	10.6	1	33	0.6× / 6.8
Other · Persian Gulfsurge	3	61.5	2	31	15× / 0.2
Surveys · North Sea	3	47.1	2	30	0.8× / 3.6
Exercises · Mediterranean Sea - Eastern Basinsurge	3	40.3	1	32	5.0× / 0.6
Exercises · Mediterranean Sea - Western Basin	3	36.7	1	42	1.3× / 2.4
Incidents · Celtic Seasurge	3	36.1	1	30	15× / 0.2
Derelicts · South China Seasurge	3	29	1	22	15× / 0.2
Derelicts · North Pacific Oceannew	3	22.1	1	33	new / 0
Containers · North Pacific Oceansurge	3	18.3	0	—	15× / 0.2
Derelicts · South Atlantic Oceansurge	3	15.9	0	—	3.0× / 1
Quakes · Molukka Seasurge	3	9	0	—	5.0× / 0.6
Other · North Atlantic Ocean	3	8.4	0	—	0.7× / 4.2
Derelicts · English Channelnew	3	5.5	1	5	new / 0
Incidents · Tasman Seasurge	3	3.7	0	—	5.0× / 0.6
Wrecks · North Seanew	2	86	3	344	new / 0
Other · Japan Sea	2	67.1	2	34	5.0× / 0.4
Cable ops · South China Sea	2	58.6	2	66	1.7× / 1.2
Nav aids · Great Australian Bightlong running	2	55.4	1	407	3.3× / 0.6
Other · North Sealong running	2	45.6	3	788	1.4× / 1.4
Derelicts · North Atlantic Ocean	2	43.7	1	35	2.5× / 0.8
Incidents · Persian Gulfnew	2	33.9	1	74	new / 0
Exercises · Ionian Sea	2	30	2	28	2.5× / 0.8
Cable ops · Arabian Sea	2	27	0	—	3.3× / 0.6
Surveys · North Atlantic Ocean	2	22.5	2	15	1.0× / 2
Surveys · South Atlantic Ocean	2	15.1	1	22	1.7× / 1.2
Surveys · Mediterranean Sea - Eastern Basin	2	14.5	1	28	1.4× / 1.4
Cable ops · Tasman Sea	2	12.4	1	14	10× / 0.2
Cable ops · Red Seanew	2	12.2	0	—	new / 0
Cable ops · Bass Straitnew	2	12	1	11	new / 0
Icebergs · Indian Oceannew	2	9.2	1	17	new / 0
Exercises · Red Seanew	2	8.7	0	—	new / 0
Cable ops · Inner Seas off the West Coast of Scotland	2	6.5	0	—	10× / 0.2
Containers · Celtic Seanew	2	6.2	1	7	new / 0
Exercises · Bay of Bengal	2	6.1	1	14	3.3× / 0.6
Quakes · Celebes Sea	2	6	0	—	10× / 0.2
Quakes · Indian Ocean	2	6	0	—	0.7× / 2.8
Quakes · Philippine Sea	2	6	0	—	1.1× / 1.8
Quakes · South China Sea	2	6	0	—	3.3× / 0.6
Cable ops · Eastern China Sea	2	5.9	2	3	0.9× / 2.2
Quakes · Coral Sea	2	4.4	1	24	3.3× / 0.6
Nav aids · Indian Ocean	2	2.2	0	—	10× / 0.2
Nav aids · Coral Sealong running	1	125.2	5	771	5.0× / 0.2
Incidents · South Pacific Ocean	1	116.1	3	75	0.2× / 4.4
Nav aids · South Atlantic Ocean	1	108.1	4	85	0.1× / 6.8
Nav aids · Irish Sea and St. George's Channellong running	1	93.5	3	758	2.5× / 0.4
Nav aids · Persian Gulf	1	86.4	3	178	0.8× / 1.2
Nav aids · Mozambique Channel	1	81.6	3	329	0.8× / 1.2
Surveys · Indian Ocean	1	66.6	2	68	new / 0
Cable ops · Bay of Bengal	1	47	1	107	2.5× / 0.4
Nav aids · Inner Seas off the West Coast of Scotlandlong running	1	46.9	1	766	0.5× / 2.2
Ordnance · North Pacific Ocean	1	36.7	1	232	2.5× / 0.4
Nav aids · South Pacific Oceanlong running	1	36.1	1	597	1.0× / 1
Other · Yellow Sea	1	35.1	1	33	5.0× / 0.2
Nav aids · English Channel	1	31.6	0	—	0.4× / 2.8
Other · Gulf of Suez	1	30.5	1	30	new / 0
Other · South Atlantic Ocean	1	30.4	0	—	5.0× / 0.2
Cable ops · Gulf of Suez	1	29.4	0	—	new / 0
Other · Tyrrhenian Sea	1	26.5	1	26	1.7× / 0.6
Other · Mediterranean Sea - Eastern Basin	1	21.4	1	21	new / 0
Incidents · Gulf of Guinea	1	20.2	1	20	new / 0
Nav aids · Gulf of Mexico	1	15.4	1	15	5.0× / 0.2
Cable ops · Bay of Biscay	1	14.2	1	14	5.0× / 0.2
Cable ops · North Pacific Ocean	1	11.4	1	11	5.0× / 0.2
Cable ops · Philippine Sea	1	11	1	10	2.5× / 0.4
Derelicts · Mediterranean Sea - Eastern Basin	1	9.8	1	33	new / 0
Cable ops · Celtic Sea	1	9.1	1	34	0.4× / 2.6
Spills · North Pacific Ocean	1	9	1	9	1.3× / 0.8
Cable ops · Laccadive Sea	1	8.4	0	—	1.7× / 0.6
Surveys · South China Sea	1	8.4	1	8	new / 0
Icebergs · South Atlantic Ocean	1	6.9	0	—	1.7× / 0.6
Debris · Indian Ocean	1	6.6	0	—	new / 0
Exercises · South China Sea	1	6.5	0	—	new / 0
Derelicts · Tyrrhenian Sea	1	6.3	0	—	new / 0
Ordnance · Gulf of Thailand	1	6.1	0	—	2.5× / 0.4
Exercises · Andaman or Burma Sea	1	4.5	0	—	new / 0
Containers · Mediterranean Sea - Eastern Basin	1	3.9	0	—	new / 0
Incidents · Arabian Sea	1	3.7	0	—	2.5× / 0.4
Other · North Pacific Ocean	1	3.1	0	—	2.5× / 0.4
Quakes · Aegean Sea	1	3	0	—	new / 0
Quakes · Arctic Ocean	1	3	0	—	5.0× / 0.2
Quakes · Caribbean Sea	1	3	0	—	5.0× / 0.2
Quakes · North Atlantic Ocean	1	3	0	—	1.7× / 0.6
Quakes · Sea of Okhotsk	1	3	0	—	new / 0
Exercises · Philippine Sea	1	2.7	1	2	5.0× / 0.2
Other · English Channel	1	1	0	—	2.5× / 0.4
Exercises · Gulf of Mexico	1	1	0	—	0.8× / 1.2
Wrecks · Mediterranean Sea - Eastern Basin	1	1	0	—	new / 0
Ordnance · Java Sea	1	0.7	0	—	new / 0
Containers · North Sea	1	0.6	0	—	new / 0
Exercises · Celtic Sea	1	0.4	0	—	new / 0
Cable ops · Irish Sea and St. George's Channel	1	0.4	0	—	0.5× / 2
Incidents · Arafura Sea	1	0.3	0	—	5.0× / 0.2
Surveys · Ionian Sea	1	0.3	1	0	1.7× / 0.6
Wrecks · Indian Ocean	1	0.2	0	—	new / 0
Incidents · Timor Sea	1	0	0	—	2.5× / 0.4
Wrecks · English Channellong running	0	124	4	1,066	— / 0
Wrecks · South China Sea	0	92.4	2	246	— / 0
Exercises · Aegean Sea	0	62	2	148	0.0× / 3.6
Wrecks · Baltic Sealong running	0	62	2	518	— / 0
Wrecks · Coral Sealong running	0	62	2	480	0.0× / 0.6
Wrecks · Irish Sea and St. George's Channellong running	0	62	2	697	— / 0
War risk · Persian Gulf	0	62	2	119	— / 0
Volcanic · Philippine Sea	0	62	2	252	0.0× / 0.4
Wrecks · Tyrrhenian Sealong running	0	62	2	477	— / 0
Other · Bass Strait	0	61.9	1	56	— / 0
Nav aids · Tasman Sea	0	47.5	1	74	0.0× / 1
Nav aids · Singapore Straitlong running	0	33.4	1	444	0.0× / 0.2
Nav aids · South China Sea	0	33.4	1	351	— / 0
Nav aids · Adriatic Sea	0	31	1	364	— / 0
Cable ops · Black Sea	0	31	1	33	— / 0
Other · Black Sea	0	31	1	91	— / 0
Nav aids · Celtic Sealong running	0	31	1	416	0.0× / 2
Wrecks · Celtic Sea	0	31	1	196	0.0× / 0.2
Nav aids · Eastern China Sealong running	0	31	1	585	— / 0
Other · Greenland Sealong running	0	31	1	646	— / 0
Nav aids · Gulf of Suez	0	31	1	85	0.0× / 0.4
Ordnance · Indian Ocean	0	31	1	120	— / 0
Wrecks · Kattegatlong running	0	31	1	466	— / 0
Ordnance · Ligurian Sea	0	31	1	103	— / 0
Nav aids · Malacca Strait	0	31	1	35	— / 0
Cable ops · Mediterranean Sea - Eastern Basin	0	31	1	35	0.0× / 0.6
Surveys · Mediterranean Sea - Western Basin	0	31	1	38	0.0× / 1.4
Nav aids · Red Sea	0	31	1	74	— / 0
Nav aids · Savu Sea	0	31	1	87	— / 0
Nav aids · Skagerrak	0	31	1	332	— / 0
Wrecks · Skagerraklong running	0	31	1	569	— / 0
Nav aids · Solomon Sea	0	31	1	96	0.0× / 0.2
Other · South China Sea	0	31	1	64	— / 0
Structures · South China Sea	0	31	1	202	— / 0
Surveys · South Pacific Ocean	0	31	1	41	— / 0
Nav aids · Timor Sealong running	0	31	1	857	— / 0
Exercises · Malacca Strait	0	30.7	0	—	0.0× / 0.2
Exercises · Norwegian Sea	0	29	0	—	— / 0
Surveys · English Channel	0	26.4	0	—	0.0× / 2.2
Incidents · Japan Sea	0	25.9	0	—	0.0× / 0.4
Nav aids · Mediterranean Sea - Western Basin	0	22.7	0	—	0.0× / 1.4
Nav aids · Mediterranean Sea - Eastern Basin	0	21.1	0	—	— / 0
Cable ops · Persian Gulf	0	20.4	0	—	0.0× / 1.4
Other · Rio de La Plata	0	20.3	0	—	0.0× / 0.2
Surveys · Philippine Sea	0	19	0	—	0.0× / 0.4
Nav aids · Caribbean Sea	0	16.4	0	—	0.0× / 0.4
Surveys · Irish Sea and St. George's Channel	0	13.5	0	—	0.0× / 1.4
Incidents · Tyrrhenian Sea	0	11.8	0	—	0.0× / 0.2
Surveys · Eastern China Sea	0	7.4	0	—	— / 0
Spills · North Atlantic Ocean	0	7	0	—	0.0× / 1.8
Incidents · Laccadive Sea	0	6.5	0	—	— / 0
Containers · North Atlantic Ocean	0	5	0	—	0.0× / 0.8
Incidents · Andaman or Burma Sea	0	2.4	0	—	— / 0
Nav aids · Bering Sea	0	2.4	0	—	0.0× / 0.2
Incidents · Malacca Strait	0	2.4	0	—	— / 0
Wrecks · Malacca Strait	0	2.4	0	—	— / 0
Wrecks · North Pacific Ocean	0	2.4	0	—	— / 0
Nav aids · Philippine Sea	0	2.4	0	—	0.0× / 0.2
Wrecks · Sea of Okhotsk	0	2.4	0	—	— / 0
Nav aids · Sulu Sea	0	2.4	0	—	— / 0
Other · Irish Sea and St. George's Channel	0	1.7	0	—	0.0× / 0.4
Debris · English Channel	0	1	0	—	0.0× / 0.2
Containers · English Channel	0	0.4	0	—	— / 0
Cable ops · Caribbean Sea	0	0	0	—	— / 0

Cite: seahazards.com Sea Ledger, 2002-05, 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.