Sea Ledger, January 2004

2004-01-01 to 2004-01-31 · archive

issued: 346
warning-days in force: 6,307
in force at month end: 200
sea × type cells: 180

baseline: same month, previous 5 years (2003-01, 2002-01, 2001-01, 2000-01, 1999-01)

By type

type	issued	warning-days	in force at end
Incidents	61	957.5	27
Cable ops	61	611.5	21
Exercises	60	703.4	21
Quakes	49	145.5	6
Nav aids	45	1,913.3	55
Surveys	15	503.7	19
Derelicts	13	92.8	3
Other	11	474.9	18
Spills	8	106	4
Ordnance	7	75.4	2
Missiles	6	62	2
Icebergs	4	31	2
Debris	3	14.1	0
Containers	2	14.9	1
Structures	1	43.1	1
War risk	0	62	2
Restricted	0	31	1
Wrecks	0	465	15

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	32	95.8	2	32	0.8× / 39
Quakes · South Pacific Oceansurge	24	69.1	4	33	2.1× / 11.2
Exercises · Laccadive Seasurge	11	78.3	3	32	5.0× / 2.2
Exercises · North Atlantic Ocean	10	78.6	3	155	1.3× / 7.8
Incidents · North Pacific Ocean	9	51.9	2	75	1.4× / 6.4
Incidents · South Pacific Ocean	8	181	6	75	1.9× / 4.2
Incidents · Philippine Seasurge	8	109.3	1	62	2.2× / 3.6
Exercises · Arabian Seasurge	8	19.7	1	29	4.0× / 2
Cable ops · Arabian Seasurge	7	142.1	6	116	8.8× / 0.8
Nav aids · North Sea	6	66.9	1	31	0.7× / 8.8
Missiles · North Pacific Ocean	6	62	2	37	1.1× / 5.4
Exercises · Bay of Bengal	6	24.5	1	35	1.6× / 3.8
Quakes · North Pacific Ocean	6	19.8	1	33	0.7× / 8.4
Incidents · Coral Seasurge	6	8.8	1	76	2.1× / 2.8
Nav aids · Tyrrhenian Sea	5	94.3	5	107	1.9× / 2.6
Nav aids · Inner Seas off the West Coast of Scotland	5	61.9	2	180	1.7× / 3
Spills · Gulf of Mexico	5	59	3	24	1.5× / 3.4
Incidents · North Atlantic Ocean	4	60.9	1	53	0.7× / 6.2
Derelicts · North Atlantic Oceansurgelong running	4	57.1	1	485	2.2× / 1.8
Cable ops · Eastern China Seasurge	4	49	1	34	6.7× / 0.6
Incidents · Japan Seasurge	4	46.9	3	24	20× / 0.2
Exercises · Mediterranean Sea - Eastern Basinsurge	4	44.8	1	30	4.0× / 1
Nav aids · Coral Sea	4	37.6	1	101	1.1× / 3.6
Cable ops · North Sea	4	23.2	0	—	1.1× / 3.6
Quakes · Solomon Seasurge	4	12	0	—	2.0× / 2
Exercises · Philippine Seasurge	4	11.5	0	—	20× / 0.2
Ordnance · Philippine Seasurge	4	3.2	0	—	6.7× / 0.6
Nav aids · Irish Sea and St. George's Channel	4	2.2	0	—	1.3× / 3
Nav aids · South Atlantic Ocean	3	199.4	8	218	0.6× / 5
Nav aids · Celtic Sea	3	111.2	2	295	0.6× / 5
Nav aids · North Atlantic Ocean	3	77.8	3	297	0.6× / 5
Surveys · Beaufort Seanew	3	71	3	23	new / 0
Incidents · Mediterranean Sea - Eastern Basin	3	63.1	1	51	1.5× / 2
Incidents · Indian Ocean	3	48.6	2	35	0.9× / 3.4
Incidents · Arabian Seasurge	3	27.3	3	15	3.8× / 0.8
Icebergs · South Atlantic Ocean	3	27.1	1	32	1.4× / 2.2
Exercises · Mediterranean Sea - Western Basin	3	19.6	1	23	0.9× / 3.4
Exercises · Black Sea	3	18	0	—	1.9× / 1.6
Exercises · North Pacific Ocean	3	14.2	0	—	0.6× / 5.2
Exercises · South Pacific Oceansurge	3	9.3	0	—	2.1× / 1.4
Other · Inner Seas off the West Coast of Scotlandsurge	3	3.3	1	17	15× / 0.2
Surveys · Baffin Baynew	2	140.4	5	121	new / 0
Nav aids · English Channellong running	2	122.7	4	390	0.5× / 4.2
Cable ops · Bay of Bengalnew	2	97.7	3	52	new / 0
Other · Japan Sea	2	65.9	2	33	1.7× / 1.2
Surveys · Mediterranean Sea - Eastern Basin	2	52.2	2	69	1.7× / 1.2
Incidents · South Atlantic Ocean	2	42	1	100	0.3× / 6
Ordnance · Arabian Sea	2	36.4	1	59	2.5× / 0.8
Nav aids · Bass Strait	2	22.3	0	—	1.3× / 1.6
Incidents · Adriatic Sea	2	21.9	1	21	1.4× / 1.4
Spills · North Atlantic Ocean	2	15	1	19	1.0× / 2
Derelicts · Mediterranean Sea - Eastern Basinnew	2	10	0	—	new / 0
Other · North Atlantic Ocean	2	8.1	1	14	2.0× / 1
Nav aids · Gulf of Mexico	2	8	0	—	5.0× / 0.4
Quakes · Banda Sea	2	6	0	—	10× / 0.2
Quakes · Bismarck Sea	2	6	0	—	1.7× / 1.2
Quakes · North Atlantic Ocean	2	6	0	—	10× / 0.2
Derelicts · North Pacific Ocean	2	6	1	24	1.7× / 1.2
Quakes · Philippine Sea	2	5.6	1	24	0.7× / 3
Other · North Sea	2	5.5	1	7	2.5× / 0.8
Cable ops · Celtic Sea	2	4.6	0	—	0.3× / 6.6
Surveys · South Atlantic Ocean	2	2.9	1	5	0.6× / 3.4
Derelicts · South Atlantic Ocean	2	2.4	0	—	5.0× / 0.4
Cable ops · Mediterranean Sea - Eastern Basin	1	84.5	3	159	0.7× / 1.4
Incidents · Bay of Bengal	1	70.7	0	—	2.5× / 0.4
Nav aids · South Pacific Oceanlong running	1	68.3	2	434	0.4× / 2.4
Nav aids · Persian Gulflong running	1	66.1	2	788	0.6× / 1.6
Exercises · Ionian Sea	1	64.2	2	32	1.7× / 0.6
Incidents · Mozambique Channel	1	52.9	2	34	5.0× / 0.2
Nav aids · Mediterranean Sea - Western Basin	1	36.3	1	59	0.5× / 2
Exercises · Indian Ocean	1	34.2	1	32	2.5× / 0.4
Exercises · Malacca Strait	1	33.1	1	35	2.5× / 0.4
Other · Yellow Sea	1	33.1	1	33	1.7× / 0.6
Other · Celtic Sea	1	32.2	2	57	new / 0
Nav aids · Ionian Sea	1	31.9	1	68	2.5× / 0.4
Incidents · Arafura Sea	1	31.7	0	—	2.5× / 0.4
Cable ops · Gulf of Guinea	1	31	1	34	5.0× / 0.2
Incidents · Solomon Sea	1	29.2	0	—	new / 0
Nav aids · Tasman Sea	1	27.9	0	—	1.3× / 0.8
Spills · The Coastal Waters of Southeast Alaska and British Columbia	1	26	0	—	5.0× / 0.2
Exercises · Tyrrhenian Sea	1	25.4	0	—	0.3× / 3
Incidents · Ionian Sea	1	24.4	0	—	0.8× / 1.2
Surveys · Arctic Ocean	1	23.7	1	23	new / 0
Cable ops · Philippine Sea	1	18.5	1	18	5.0× / 0.2
Cable ops · Great Australian Bight	1	13.7	0	—	5.0× / 0.2
Structures · Persian Gulf	1	13.6	1	13	new / 0
Cable ops · Bali Sea	1	12.7	0	—	new / 0
Cable ops · Gulf of Suez	1	10.6	1	10	1.7× / 0.6
Surveys · Gulf of Suez	1	10.4	1	107	new / 0
Cable ops · Tasman Sea	1	10	1	10	1.3× / 0.8
Surveys · Gulf of Guinea	1	7.9	0	—	5.0× / 0.2
Surveys · Tyrrhenian Sea	1	7.3	0	—	0.8× / 1.2
Surveys · Mediterranean Sea - Western Basin	1	7	0	—	0.5× / 2.2
Debris · Arafura Sea	1	6.8	0	—	new / 0
Derelicts · Coral Sea	1	6.7	0	—	1.3× / 0.8
Containers · Japan Sea	1	6.6	0	—	new / 0
Debris · North Sea	1	6.3	0	—	new / 0
Cable ops · Indian Ocean	1	5.5	1	80	5.0× / 0.2
Nav aids · Gulf of Guinea	1	5.3	1	5	new / 0
Cable ops · North Atlantic Ocean	1	5.3	0	—	0.2× / 6.2
Ordnance · Persian Gulf	1	4.8	0	—	1.3× / 0.8
Incidents · Southern Ocean	1	4.7	1	4	2.5× / 0.4
Exercises · Coral Sea	1	4.3	0	—	new / 0
Icebergs · Southern Ocean	1	3.9	1	3	0.3× / 3.6
Containers · Mediterranean Sea - Eastern Basin	1	3.3	1	3	new / 0
Derelicts · Arafura Sea	1	3.2	0	—	1.3× / 0.8
Quakes · Arctic Ocean	1	3	0	—	new / 0
Quakes · Bali Sea	1	3	0	—	new / 0
Quakes · Bering Sea	1	3	0	—	2.5× / 0.4
Quakes · Gulf of Alaska	1	3	0	—	1.7× / 0.6
Quakes · Indian Ocean	1	3	0	—	0.3× / 4
Quakes · South Atlantic Ocean	1	3	0	—	0.7× / 1.4
Quakes · Southern Ocean	1	3	0	—	5.0× / 0.2
Derelicts · Tyrrhenian Sea	1	1.4	1	1	new / 0
Cable ops · Tyrrhenian Sea	1	1.3	1	1	1.0× / 1
Debris · Celtic Sea	1	1	0	—	5.0× / 0.2
Incidents · Tasman Sea	1	1	0	—	0.5× / 2.2
Surveys · Tasman Sea	1	0.4	1	0	5.0× / 0.2
Incidents · Celtic Sea	1	0.1	0	—	0.8× / 1.2
Incidents · Great Australian Bight	1	0.1	0	—	1.3× / 0.8
Nav aids · Solomon Sea	0	268.6	6	315	0.0× / 0.4
Exercises · Aegean Sealong running	0	217	7	396	0.0× / 5.2
Wrecks · North Sealong running	0	124	4	386	0.0× / 0.8
Nav aids · Laccadive Sea	0	93	3	274	0.0× / 0.6
Other · Persian Gulf	0	93	3	361	0.0× / 0.2
Nav aids · Gulf of Suez	0	85.5	2	296	— / 0
Nav aids · Bay of Bengal	0	64.5	2	274	0.0× / 1
Wrecks · Baltic Sealong running	0	62	2	1,128	— / 0
Nav aids · Mediterranean Sea - Eastern Basin	0	62	2	198	0.0× / 1
Surveys · North Sealong running	0	62	2	400	0.0× / 1.2
War risk · Persian Gulflong running	0	62	2	729	— / 0
Nav aids · Red Sealong running	0	54.5	1	417	0.0× / 0.2
Nav aids · Mozambique Channel	0	47.5	1	72	0.0× / 0.2
Nav aids · Arabian Sea	0	31	1	241	0.0× / 0.4
Wrecks · Arabian Sealong running	0	31	1	416	— / 0
Surveys · Balearic (Iberian Sea)	0	31	1	191	— / 0
Other · Black Sea	0	31	1	325	— / 0
Other · Coral Sea	0	31	1	116	0.0× / 0.8
Incidents · Eastern China Sea	0	31	1	38	0.0× / 0.4
Wrecks · English Channellong running	0	31	1	835	0.0× / 0.2
Other · Greenland Sealong running	0	31	1	1,256	— / 0
Surveys · Greenland Sea	0	31	1	339	— / 0
Restricted · Indian Ocean	0	31	1	235	— / 0
Other · Ionian Sea	0	31	1	49	0.0× / 0.4
Surveys · Japan Sea	0	31	1	109	— / 0
Wrecks · Japan Sealong running	0	31	1	367	0.0× / 0.2
Wrecks · Java Sea	0	31	1	268	— / 0
Wrecks · Kattegatlong running	0	31	1	1,076	— / 0
Other · Laccadive Sealong running	0	31	1	432	0.0× / 0.2
Nav aids · Malacca Strait	0	31	1	362	— / 0
Wrecks · North Atlantic Oceanlong running	0	31	1	422	0.0× / 0.2
Nav aids · Savu Sealong running	0	31	1	697	— / 0
Other · Sea of Marmara	0	31	1	94	— / 0
Ordnance · Sea of Okhotsk	0	31	1	115	— / 0
Other · Sea of Okhotsk	0	31	1	324	0.0× / 0.2
Wrecks · Skagerraklong running	0	31	1	1,179	— / 0
Wrecks · South Atlantic Ocean	0	31	1	38	— / 0
Nav aids · South China Sea	0	31	1	227	0.0× / 0.4
Nav aids · Southern Ocean	0	31	1	127	0.0× / 0.4
Wrecks · Sulu Sea	0	31	1	204	— / 0
Incidents · Tyrrhenian Sea	0	31	1	39	— / 0
Structures · South Atlantic Ocean	0	29.5	0	—	— / 0
Incidents · South China Sea	0	19	0	—	0.0× / 3.6
Nav aids · Alboran Sea	0	17	0	—	0.0× / 0.2
Surveys · Philippine Sea	0	17	0	—	0.0× / 0.4
Nav aids · Indian Ocean	0	11	0	—	0.0× / 1.6
Other · Tyrrhenian Sea	0	11	0	—	0.0× / 0.4
Nav aids · Japan Sea	0	9.5	0	—	0.0× / 0.6
Exercises · Red Sea	0	6.7	0	—	0.0× / 0.2
Derelicts · Arabian Sea	0	6	0	—	0.0× / 0.2
Surveys · Bass Strait	0	6	0	—	— / 0
Cable ops · Makassar Strait	0	6	0	—	— / 0
Other · Great Australian Bight	0	5.8	0	—	0.0× / 0.4
Nav aids · Great Australian Bight	0	5	0	—	0.0× / 0.6
Containers · Persian Gulf	0	5	0	—	— / 0
Spills · Caribbean Sea	0	4	0	—	0.0× / 0.2
Surveys · Persian Gulf	0	2.5	0	—	0.0× / 0.4
Spills · North Pacific Ocean	0	2	0	—	0.0× / 1.8
Nav aids · Rio de La Plata	0	0.1	0	—	— / 0
Surveys · Indian Ocean	0	0	0	—	0.0× / 0.6

Cite: seahazards.com Sea Ledger, 2004-01, 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.