Sea Ledger, February 2007

2007-02-01 to 2007-02-28 · archive

issued: 263
warning-days in force: 12,547
in force at month end: 431
sea × type cells: 227

baseline: same month, previous 5 years (2006-02, 2005-02, 2004-02, 2003-02, 2002-02)

By type

type	issued	warning-days	in force at end
Exercises	47	682.5	20
Cable ops	46	1,210	38
Incidents	40	1,240.3	35
Quakes	35	139	4
Nav aids	21	4,310.1	153
Surveys	14	1,886.7	69
Other	12	892.9	30
Spills	9	106	5
Containers	7	51.2	1
Wrecks	6	1,146.8	43
Derelicts	5	39.3	3
Restricted	4	205.5	8
Missiles	4	83.8	2
Icebergs	4	39.2	2
Volcanic	3	135.8	5
Structures	2	152.1	5
Ordnance	1	89.8	3
Towing	1	30.2	2
Debris	1	34.7	1
Mines	1	6.2	0
Piracy	0	56.7	2
Storms	0	7.8	0

By sea and type · 200 cells, most issued first

cell	issued	warning-days	at end	longest d	vs 5 y
Cable ops · South Atlantic Ocean	18	123.5	6	70	0.8× / 22.2
Quakes · South Pacific Ocean	15	47.1	0	—	1.8× / 8.2
Exercises · North Pacific Ocean	11	100.9	3	74	1.6× / 6.8
Cable ops · North Atlantic Oceansurge	8	68	1	59	2.7× / 3
Exercises · Bay of Bengal	7	41.1	1	63	1.2× / 6
Incidents · South Atlantic Ocean	6	113	4	77	1.4× / 4.2
Exercises · Laccadive Sea	6	62	2	34	0.7× / 8.4
Spills · Gulf of Mexicosurge	6	61	3	39	2.7× / 2.2
Exercises · Arabian Sea	6	21.1	0	—	0.9× / 7
Nav aids · Coral Seasurgelong running	5	313.4	11	969	4.2× / 1.2
Surveys · North Atlantic Oceansurge	5	101.2	3	329	3.6× / 1.4
Containers · North Atlantic Oceansurge	5	32.3	0	—	2.1× / 2.4
Incidents · South Pacific Ocean	4	174.2	5	69	0.6× / 7.2
Wrecks · Persian Gulfsurgelong running	4	106.4	6	416	10× / 0.4
Incidents · North Pacific Ocean	4	79.5	0	—	0.6× / 7
Missiles · North Pacific Ocean	4	56	2	31	0.9× / 4.6
Icebergs · South Atlantic Ocean	4	25.2	2	30	1.1× / 3.6
Exercises · Philippine Seasurge	4	13.1	0	—	5.0× / 0.8
Quakes · Molukka Seasurge	4	12	0	—	10× / 0.4
Cable ops · Black Seasurge	3	107.5	4	154	7.5× / 0.4
Incidents · Tasman Seasurge	3	69.5	2	54	3.8× / 0.8
Exercises · Yellow Seasurge	3	59.4	2	34	3.8× / 0.8
Incidents · Indian Ocean	3	43.9	2	70	0.9× / 3.2
Exercises · Mediterranean Sea - Eastern Basin	3	17.9	1	19	0.9× / 3.2
Quakes · Indian Ocean	3	12.1	1	29	1.0× / 3
Quakes · North Pacific Ocean	3	10.9	0	—	0.8× / 4
Surveys · South Atlantic Ocean	3	10.7	1	26	1.3× / 2.4
Quakes · Solomon Sea	3	9	0	—	1.5× / 2
Incidents · Bay of Biscaynew	3	0.1	0	—	new / 0
Nav aids · Arabian Sealong running	2	406	14	415	2.5× / 0.8
Nav aids · Indian Ocean	2	225.2	9	289	1.7× / 1.2
Nav aids · North Sea	2	169.6	5	132	0.4× / 5.6
Nav aids · English Channellong running	2	135.1	5	500	1.0× / 2
Cable ops · Bay of Bengal	2	125.4	5	99	1.0× / 2
Cable ops · Mediterranean Sea - Eastern Basin	2	123.9	4	70	0.8× / 2.6
Other · Bay of Bengalnew	2	77.8	3	121	new / 0
Structures · Mediterranean Sea - Eastern Basinnew	2	68.3	3	251	new / 0
Cable ops · Indian Ocean	2	63.3	2	34	1.7× / 1.2
Nav aids · Irish Sea and St. George's Channel	2	56.6	2	356	2.0× / 1
Cable ops · Mediterranean Sea - Western Basin	2	55.6	3	83	5.0× / 0.4
Cable ops · Arabian Sea	2	54.4	2	76	0.5× / 4.2
Volcanic · South Pacific Oceannew	2	51.8	2	76	new / 0
Incidents · Arabian Sea	2	51.3	2	53	2.0× / 1
Incidents · South China Sea	2	48.2	1	74	1.0× / 2
Incidents · Bay of Bengalnew	2	46.2	3	77	new / 0
Cable ops · Gulf of Guinea	2	42.5	2	46	5.0× / 0.4
Cable ops · Caribbean Sea	2	36.4	1	42	3.3× / 0.6
Exercises · North Atlantic Ocean	2	36	1	30	0.2× / 8.4
Other · North Pacific Ocean	2	34.2	1	71	1.4× / 1.4
Exercises · Japan Sea	2	31.3	1	34	1.7× / 1.2
Spills · North Atlantic Ocean	2	19	1	38	0.8× / 2.6
Restricted · Caribbean Seanew	2	15.5	1	15	new / 0
Restricted · North Atlantic Ocean	2	14.2	1	27	3.3× / 0.6
Other · North Atlantic Ocean	2	12.6	0	—	10× / 0.2
Surveys · Caribbean Seanew	2	10.4	1	114	new / 0
Derelicts · North Atlantic Ocean	2	9.4	1	9	0.7× / 2.8
Incidents · Southern Oceannew	2	9.1	0	—	new / 0
Quakes · North Atlantic Ocean	2	6	0	—	10× / 0.2
Incidents · Arafura Sea	2	2.4	0	—	10× / 0.2
Incidents · Philippine Sea	1	213.4	1	69	0.2× / 4.2
Nav aids · Laccadive Sealong running	1	168.3	7	420	new / 0
Other · Persian Gulflong running	1	118.5	3	504	1.0× / 1
Other · Arabian Sealong running	1	104.9	4	378	2.5× / 0.4
Cable ops · Tasman Sealong running	1	97.3	3	395	2.5× / 0.4
Nav aids · Inner Seas off the West Coast of Scotland	1	94.6	3	265	0.2× / 6.4
Incidents · North Atlantic Ocean	1	92	3	118	0.3× / 3.6
Nav aids · Gulf of Mexicolong running	1	87.2	3	688	1.0× / 1
Surveys · Mediterranean Sea - Eastern Basin	1	78.5	3	75	0.8× / 1.2
Incidents · Mediterranean Sea - Eastern Basin	1	69.7	2	66	0.4× / 2.4
Volcanic · Philippine Sea	1	56	2	147	2.5× / 0.4
Nav aids · Celtic Sea	1	54.9	2	159	0.8× / 1.2
Wrecks · South Pacific Ocean	1	49.1	2	166	5.0× / 0.2
Nav aids · Andaman or Burma Sealong running	1	42.9	2	483	new / 0
Surveys · Gulf of Suez	1	42.4	2	225	5.0× / 0.2
Incidents · Coral Sea	1	37.6	2	30	0.4× / 2.8
Other · Black Sea	1	35.5	2	81	new / 0
Cable ops · Gulf of Suez	1	27.5	1	27	1.0× / 1
Cable ops · Celtic Sea	1	23.7	1	30	1.0× / 1
Derelicts · Bay of Biscay	1	19.6	1	19	new / 0
Surveys · Red Sea	1	17.6	1	17	new / 0
Other · Laccadive Sea	1	16.2	1	16	new / 0
Other · North Sea	1	14.5	0	—	1.0× / 1
Wrecks · Laccadive Sea	1	14.4	1	14	new / 0
Spills · Southern Ocean	1	13	1	13	new / 0
Exercises · Persian Gulf	1	11	0	—	0.8× / 1.2
Exercises · Norwegian Sea	1	8.3	1	8	5.0× / 0.2
Incidents · Gulf of Aden	1	6.8	1	6	2.5× / 0.4
Debris · South Pacific Ocean	1	6.7	0	—	5.0× / 0.2
Containers · Celtic Sea	1	6.6	0	—	1.0× / 1
Derelicts · Arafura Sea	1	6.3	0	—	2.5× / 0.4
Mines · English Channel	1	6.2	0	—	new / 0
Ordnance · Philippine Sea	1	5.8	0	—	1.3× / 0.8
Nav aids · Bristol Channel	1	5.2	1	5	1.7× / 0.6
Quakes · Coral Sea	1	4.9	1	28	0.8× / 1.2
Incidents · North Sea	1	4.2	1	74	5.0× / 0.2
Quakes · Caribbean Sea	1	3	0	—	5.0× / 0.2
Quakes · Gulf of California	1	3	0	—	1.7× / 0.6
Quakes · Philippine Sea	1	3	0	—	0.4× / 2.6
Incidents · Mozambique Channel	1	2.2	1	2	1.3× / 0.8
Towing · North Atlantic Ocean	1	2.2	1	2	5.0× / 0.2
Derelicts · Black Sea	1	2	1	1	new / 0
Surveys · South Pacific Ocean	1	1.1	1	1	new / 0
Exercises · South China Sea	1	1	0	—	new / 0
Containers · Indian Ocean	1	0.3	1	0	5.0× / 0.2
Other · Gulf of Guinea	1	0	0	—	new / 0
Quakes · South Atlantic Ocean	1	0	1	0	0.6× / 1.6
Surveys · Beaufort Sealong running	0	644	23	1,147	— / 0
Nav aids · South Pacific Oceanlong running	0	520	18	419	0.0× / 1.6
Surveys · Arctic Oceanlong running	0	336	12	1,147	— / 0
Nav aids · Caribbean Sealong running	0	336	12	625	— / 0
Nav aids · Bay of Bengallong running	0	225.5	8	625	0.0× / 1
Exercises · Aegean Sea	0	195.6	6	56	0.0× / 2.8
Wrecks · Mediterranean Sea - Eastern Basinlong running	0	168	6	975	0.0× / 0.2
Wrecks · North Sealong running	0	168	6	519	— / 0
Nav aids · North Pacific Oceanlong running	0	140.7	5	600	0.0× / 0.2
Surveys · Baffin Baylong running	0	140	5	1,245	— / 0
Nav aids · Tyrrhenian Sealong running	0	140	5	832	0.0× / 2.4
Nav aids · Mediterranean Sea - Western Basin	0	119.8	4	313	0.0× / 0.8
Nav aids · Bering Sea	0	112	4	224	— / 0
Nav aids · Mozambique Channellong running	0	112	4	687	0.0× / 1.8
Nav aids · Arafura Sea	0	84	3	205	0.0× / 0.2
Surveys · Laptev Sea	0	84	3	281	— / 0
Other · South Pacific Ocean	0	84	3	247	0.0× / 0.2
Nav aids · Tasman Sealong running	0	84	3	382	0.0× / 0.4
Wrecks · South China Sealong running	0	80.2	2	860	0.0× / 0.4
Nav aids · Mediterranean Sea - Eastern Basinlong running	0	71.5	2	922	0.0× / 0.2
Nav aids · North Atlantic Oceanlong running	0	71.5	2	407	0.0× / 2.8
Other · South Atlantic Ocean	0	71.1	2	151	0.0× / 1.6
Nav aids · Red Sea	0	56.7	2	106	— / 0
Nav aids · South Atlantic Ocean	0	56.7	2	116	0.0× / 5
Nav aids · Bass Strait	0	56	2	163	0.0× / 0.4
Wrecks · Bay of Bengal	0	56	2	271	— / 0
Wrecks · Coral Sealong running	0	56	2	399	— / 0
Nav aids · Great Australian Bight	0	56	2	251	0.0× / 0.6
Incidents · Gulf of Guinea	0	56	2	131	0.0× / 0.2
Nav aids · Gulf of Suez	0	56	2	76	0.0× / 0.2
Exercises · Ionian Sea	0	56	2	47	0.0× / 1.2
Nav aids · Persian Gulf	0	56	2	193	0.0× / 0.6
Piracy · Persian Gulflong running	0	56	2	750	0.0× / 0.4
Surveys · Persian Gulf	0	56	2	179	0.0× / 0.4
Other · South China Sea	0	56	2	259	— / 0
Wrecks · Tasman Sea	0	56	2	285	— / 0
Surveys · The Northwestern Passages	0	56	2	130	— / 0
Ordnance · Tyrrhenian Sea	0	56	2	104	0.0× / 0.4
Wrecks · Tyrrhenian Sea	0	56	2	344	— / 0
Surveys · Indian Ocean	0	49	1	147	0.0× / 0.8
Cable ops · Laccadive Sea	0	43	1	76	0.0× / 0.6
Surveys · North Sea	0	35.8	1	296	0.0× / 0.4
Incidents · Laccadive Sea	0	29.5	1	70	0.0× / 0.2
Nav aids · Sea of Okhotsk	0	28.7	1	253	— / 0
Other · Adriatic Sea	0	28	1	48	— / 0
Ordnance · Arabian Sealong running	0	28	1	417	— / 0
Surveys · Arabian Sealong running	0	28	1	414	0.0× / 0.4
Wrecks · Arabian Sea	0	28	1	312	0.0× / 0.2
Debris · Arctic Oceanlong running	0	28	1	799	— / 0
Quakes · Bay of Bengal	0	28	1	79	0.0× / 0.4
Restricted · Bay of Bengal	0	28	1	316	— / 0
Other · Caribbean Sea	0	28	1	93	— / 0
Wrecks · Caribbean Sea	0	28	1	121	— / 0
Surveys · Chukchi Sealong running	0	28	1	680	— / 0
Other · Eastern China Sea	0	28	1	338	— / 0
Wrecks · Eastern China Sea	0	28	1	254	— / 0
Surveys · Greenland Sealong running	0	28	1	1,463	0.0× / 0.6
Cable ops · Gulf of Aden	0	28	1	31	— / 0
Wrecks · Gulf of Guinea	0	28	1	138	— / 0
Other · Gulf of Mexicolong running	0	28	1	464	0.0× / 0.2
Other · Gulf of Suez	0	28	1	362	0.0× / 0.2
Other · Gulf of Thailand	0	28	1	76	— / 0
Other · Indian Ocean	0	28	1	342	— / 0
Restricted · Indian Oceanlong running	0	28	1	675	— / 0
Wrecks · Indian Oceanlong running	0	28	1	814	— / 0
Nav aids · Ionian Sea	0	28	1	307	0.0× / 0.2
Wrecks · Irish Sea and St. George's Channellong running	0	28	1	902	— / 0
Nav aids · Malacca Straitlong running	0	28	1	517	0.0× / 0.4
Wrecks · Malacca Strait	0	28	1	337	— / 0
Restricted · Mediterranean Sea - Eastern Basin	0	28	1	267	— / 0
Wrecks · North Atlantic Oceanlong running	0	28	1	391	0.0× / 0.4
Restricted · North Pacific Ocean	0	28	1	282	— / 0
Surveys · North Pacific Oceanlong running	0	28	1	576	— / 0
Volcanic · North Pacific Oceanlong running	0	28	1	417	— / 0
Restricted · North Sea	0	28	1	205	— / 0
Structures · North Sea	0	28	1	191	— / 0
Nav aids · Philippine Sea	0	28	1	64	— / 0
Wrecks · Philippine Sea	0	28	1	324	— / 0
Incidents · Red Sea	0	28	1	31	0.0× / 0.4
Wrecks · Red Sea	0	28	1	252	— / 0
Surveys · Sea of Azov	0	28	1	125	— / 0
Other · Sea of Marmara	0	28	1	78	0.0× / 0.4
Surveys · Sea of Marmara	0	28	1	264	— / 0
Nav aids · Singapore Strait	0	28	1	72	— / 0
Towing · South Atlantic Ocean	0	28	1	102	— / 0
Wrecks · South Atlantic Oceanlong running	0	28	1	717	— / 0
Structures · South China Sea	0	28	1	245	— / 0
Surveys · South China Sea	0	28	1	124	— / 0
Nav aids · Southern Ocean	0	28	1	351	— / 0
Wrecks · Southern Ocean	0	28	1	69	— / 0
Incidents · Strait of Gibraltar	0	28	1	31	— / 0
Nav aids · Sulu Sea	0	28	1	259	— / 0
Other · Tasman Sea	0	28	1	36	— / 0
Restricted · Tasman Sea	0	28	1	286	— / 0

Cite: seahazards.com Sea Ledger, 2007-02, 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.