Sea Ledger, May 2007

2007-05-01 to 2007-05-31 · archive

issued: 310
warning-days in force: 15,104
in force at month end: 490
sea × type cells: 239

baseline: same month, previous 5 years (2006-05, 2005-05, 2004-05, 2003-05, 2002-05)

By type

type	issued	warning-days	in force at end
Exercises	62	865.5	30
Cable ops	57	1,495.4	52
Incidents	50	1,769.8	46
Quakes	38	177.6	9
Nav aids	30	5,023.7	165
Surveys	17	2,120	68
Derelicts	15	169	3
Other	11	998.7	34
Spills	10	139	6
Icebergs	7	30.5	2
Missiles	6	62	2
Ordnance	3	146.9	5
Debris	2	48.5	1
Wrecks	1	1,336.5	44
Restricted	1	251.1	8
Volcanic	0	186	6
Towing	0	31	1
Structures	0	217	7
Piracy	0	31	1
Containers	0	1	0
Mines	0	4	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	29	115	5	36	1.4× / 21.2
Quakes · South Pacific Ocean	15	44.3	1	28	1.5× / 10
Incidents · North Pacific Ocean	14	533.4	14	78	1.7× / 8.4
Exercises · North Atlantic Ocean	11	84.5	4	63	1.1× / 9.8
Exercises · North Pacific Ocean	10	71.7	2	35	1.0× / 9.8
Incidents · South Pacific Ocean	9	137.7	2	85	1.8× / 5
Exercises · South Atlantic Oceansurge	9	56.5	3	29	3.2× / 2.8
Exercises · Black Seasurge	7	79.8	2	42	2.9× / 2.4
Cable ops · North Atlantic Oceansurge	7	44.5	3	31	2.7× / 2.6
Incidents · Indian Oceansurge	6	123.3	5	54	2.1× / 2.8
Exercises · Laccadive Sea	6	70	2	34	0.7× / 9
Missiles · North Pacific Ocean	6	62	2	60	0.9× / 6.4
Icebergs · South Atlantic Oceansurge	6	25.2	2	37	2.7× / 2.2
Quakes · Solomon Seasurge	6	19.2	0	—	10× / 0.6
Incidents · Philippine Sea	5	322.4	5	81	1.2× / 4.2
Spills · Gulf of Mexicosurge	5	43	4	15	2.5× / 2
Derelicts · North Atlantic Ocean	5	31.4	1	31	1.9× / 2.6
Surveys · Mediterranean Sea - Eastern Basinsurge	4	109.9	2	167	2.2× / 1.8
Nav aids · Inner Seas off the West Coast of Scotlandsurge	4	97.2	3	357	2.2× / 1.8
Other · North Atlantic Ocean	4	32.3	1	29	1.7× / 2.4
Exercises · Bay of Bengal	4	24.8	0	—	0.9× / 4.4
Nav aids · Coral Sealong running	3	373.8	13	1,061	1.9× / 1.6
Nav aids · Caribbean Seasurgelong running	3	330.9	12	717	7.5× / 0.4
Nav aids · North Sea	3	252.4	9	224	0.7× / 4.6
Nav aids · South Atlantic Ocean	3	124.8	4	208	1.9× / 1.6
Incidents · South Atlantic Ocean	3	80.9	3	31	0.8× / 3.8
Nav aids · Irish Sea and St. George's Channellong running	3	72.2	3	448	1.3× / 2.4
Cable ops · North Seasurge	3	68.2	3	50	3.8× / 0.8
Surveys · North Atlantic Oceanlong running	3	58.5	1	421	1.3× / 2.4
Surveys · Sea of Marmarasurge	3	57.5	1	356	15× / 0.2
Spills · North Pacific Oceansurge	3	32	2	41	3.0× / 1
Incidents · South China Sea	3	26	0	—	0.9× / 3.2
Quakes · Molukka Seasurge	3	8.2	2	28	2.1× / 1.4
Cable ops · Indian Ocean	2	130.7	5	126	5.0× / 0.4
Incidents · North Atlantic Ocean	2	119.5	4	210	0.7× / 3
Nav aids · English Channellong running	2	96	3	592	0.9× / 2.2
Nav aids · Tasman Sealong running	2	86.9	3	474	3.3× / 0.6
Cable ops · Mediterranean Sea - Eastern Basin	2	83.9	4	135	0.6× / 3.4
Exercises · Yellow Sea	2	70.1	2	35	1.1× / 1.8
Nav aids · North Atlantic Oceanlong running	2	63	2	499	0.6× / 3.6
Spills · North Atlantic Ocean	2	57	0	—	0.9× / 2.2
Exercises · South Pacific Ocean	2	40.7	1	48	0.5× / 4.2
Derelicts · South Pacific Ocean	2	37.8	0	—	10× / 0.2
Derelicts · Indian Ocean	2	18.6	0	—	10× / 0.2
Incidents · Arafura Sea	2	16.6	1	10	5.0× / 0.4
Exercises · Baltic Seanew	2	11	1	22	new / 0
Quakes · South Atlantic Ocean	2	6.8	1	31	1.7× / 1.2
Quakes · Bismarck Sea	2	6	1	19	3.3× / 0.6
Quakes · Indian Ocean	2	6	0	—	0.4× / 5
Quakes · North Pacific Ocean	2	6	0	—	0.4× / 4.6
Surveys · Sea of Okhotsk	2	4.8	2	4	5.0× / 0.4
Cable ops · English Channel	2	2.5	1	2	0.8× / 2.4
Nav aids · Indian Oceanlong running	1	343.9	11	381	0.4× / 2.4
Nav aids · Bay of Bengallong running	1	236.9	8	717	1.3× / 0.8
Exercises · Aegean Sea	1	189.6	7	148	0.5× / 2.2
Nav aids · North Pacific Oceanlong running	1	182.2	6	680	new / 0
Cable ops · Black Sea	1	152.5	5	246	5.0× / 0.2
Cable ops · Bay of Bengal	1	149.2	4	185	0.6× / 1.6
Nav aids · Arafura Sea	1	130.1	4	297	new / 0
Cable ops · Tasman Sealong running	1	113.6	4	487	1.7× / 0.6
Incidents · Gulf of Guinea	1	89.7	3	223	1.7× / 0.6
Other · Indian Oceanlong running	1	86.2	3	434	1.7× / 0.6
Cable ops · Celtic Sea	1	83.7	3	114	0.6× / 1.8
Incidents · Coral Sea	1	81.9	1	74	0.2× / 6
Other · South Atlantic Ocean	1	75.3	3	243	1.3× / 0.8
Exercises · Japan Sea	1	65.6	1	35	0.7× / 1.4
Ordnance · North Sea	1	62	2	62	5.0× / 0.2
Cable ops · Persian Gulf	1	62	2	41	new / 0
Cable ops · Sulu Sea	1	58.4	2	34	new / 0
Surveys · Black Sea	1	54.5	2	69	new / 0
Other · Mediterranean Sea - Eastern Basin	1	40.4	2	42	0.6× / 1.8
Incidents · Mediterranean Sea - Western Basin	1	35.9	1	74	5.0× / 0.2
Surveys · Bay of Bengal	1	34.9	2	63	1.0× / 1
Wrecks · Philippine Sealong running	1	34.5	2	416	new / 0
Cable ops · Japan Sea	1	29.4	1	29	new / 0
Cable ops · Sea of Marmara	1	29.4	0	—	new / 0
Derelicts · Arabian Sea	1	28.5	0	—	5.0× / 0.2
Cable ops · Arabian Sea	1	25	0	—	0.4× / 2.8
Incidents · Bay of Bengal	1	20	1	20	1.7× / 0.6
Cable ops · Gulf of Mexico	1	12.7	1	31	new / 0
Other · Philippine Sea	1	11.6	1	11	new / 0
Other · North Sea	1	11.3	1	11	0.6× / 1.6
Ordnance · Gulf of Thailand	1	10.9	0	—	1.7× / 0.6
Exercises · Arabian Sea	1	10.3	1	34	0.2× / 4.6
Cable ops · Adriatic Sea	1	9.4	1	9	new / 0
Cable ops · Ceram Sea	1	8.6	0	—	new / 0
Derelicts · Celtic Sea	1	7.5	1	34	new / 0
Exercises · Persian Gulf	1	7.1	1	7	1.3× / 0.8
Debris · Great Australian Bight	1	6.9	0	—	new / 0
Derelicts · Malacca Strait	1	6.7	0	—	5.0× / 0.2
Derelicts · Coral Sea	1	6.6	0	—	1.7× / 0.6
Exercises · Mediterranean Sea - Eastern Basin	1	6.6	1	6	0.2× / 5
Debris · Tasman Sea	1	6.6	0	—	new / 0
Other · Sea of Azov	1	6	1	5	new / 0
Exercises · Andaman or Burma Sea	1	5.6	0	—	1.3× / 0.8
Derelicts · Timor Sea	1	5.6	0	—	new / 0
Icebergs · Southern Ocean	1	5.3	0	—	0.3× / 3.4
Exercises · Red Sea	1	4.1	0	—	0.8× / 1.2
Exercises · Adriatic Sea	1	3.6	0	—	0.8× / 1.2
Ordnance · Black Sea	1	3.6	1	3	new / 0
Restricted · South Atlantic Ocean	1	3.1	0	—	5.0× / 0.2
Quakes · Celebes Sea	1	3	0	—	1.3× / 0.8
Quakes · Gulf of Mexico	1	3	0	—	new / 0
Quakes · North Atlantic Ocean	1	3	0	—	1.7× / 0.6
Quakes · South China Sea	1	3	0	—	1.7× / 0.6
Quakes · Coral Sea	1	2.8	1	2	0.4× / 2.6
Surveys · Celtic Sea	1	2.5	0	—	0.6× / 1.6
Quakes · Gulf of Tomini	1	2.2	1	2	new / 0
Nav aids · Bristol Channel	1	2.1	0	—	0.5× / 2.2
Incidents · Tasman Sea	1	2.1	1	2	0.5× / 2
Exercises · Mediterranean Sea - Western Basin	1	1.9	0	—	0.4× / 2.6
Other · Irish Sea and St. George's Channel	1	1.6	0	—	5.0× / 0.2
Derelicts · North Pacific Ocean	1	1	1	0	0.7× / 1.4
Surveys · Aegean Sea	1	0.9	1	0	new / 0
Surveys · Japan Sea	1	0.4	1	0	new / 0
Incidents · North Sea	1	0.1	0	—	new / 0
Surveys · Beaufort Sealong running	0	713	23	1,239	0.0× / 0.2
Nav aids · South Pacific Oceanlong running	0	563.6	18	511	0.0× / 2
Nav aids · Arabian Sealong running	0	483.3	15	507	0.0× / 1.2
Surveys · Arctic Oceanlong running	0	372	12	1,239	— / 0
Nav aids · Mozambique Channellong running	0	217	7	779	0.0× / 1.2
Nav aids · Laccadive Sealong running	0	186	6	510	0.0× / 0.6
Wrecks · Mediterranean Sea - Eastern Basinlong running	0	186	6	1,067	0.0× / 0.4
Wrecks · North Sealong running	0	186	6	611	0.0× / 0.4
Wrecks · Persian Gulf	0	186	6	306	0.0× / 0.4
Surveys · Baffin Baylong running	0	155	5	1,337	— / 0
Nav aids · Tyrrhenian Sealong running	0	155	5	924	0.0× / 1.8
Nav aids · Bering Sea	0	124	4	316	— / 0
Nav aids · Mediterranean Sea - Western Basinlong running	0	124	4	405	0.0× / 0.4
Nav aids · Great Australian Bight	0	93	3	343	0.0× / 0.8
Nav aids · Gulf of Mexicolong running	0	93	3	780	0.0× / 0.6
Nav aids · Gulf of Suez	0	93	3	168	0.0× / 0.2
Surveys · Laptev Sealong running	0	93	3	373	0.0× / 0.4
Structures · Mediterranean Sea - Eastern Basin	0	93	3	343	— / 0
Other · Persian Gulflong running	0	93	3	479	0.0× / 0.8
Cable ops · South China Sea	0	93	3	81	0.0× / 1.4
Other · South Pacific Ocean	0	93	3	339	0.0× / 0.4
Nav aids · Andaman or Burma Sealong running	0	62	2	575	— / 0
Other · Arabian Sealong running	0	62	2	470	0.0× / 0.4
Nav aids · Bass Strait	0	62	2	255	0.0× / 0.2
Quakes · Bay of Bengal	0	62	2	171	— / 0
Other · Bay of Bengal	0	62	2	213	0.0× / 0.2
Wrecks · Bay of Bengal	0	62	2	363	0.0× / 0.6
Wrecks · Coral Sealong running	0	62	2	491	— / 0
Exercises · Ionian Sea	0	62	2	139	0.0× / 1
Incidents · Japan Sea	0	62	2	47	— / 0
Nav aids · Mediterranean Sea - Eastern Basinlong running	0	62	2	1,014	— / 0
Nav aids · Persian Gulf	0	62	2	285	0.0× / 0.8
Surveys · Persian Gulf	0	62	2	271	0.0× / 0.8
Volcanic · Philippine Sea	0	62	2	239	— / 0
Other · South China Sea	0	62	2	351	— / 0
Wrecks · South China Sealong running	0	62	2	952	— / 0
Cable ops · South Pacific Ocean	0	62	2	48	— / 0
Volcanic · South Pacific Ocean	0	62	2	117	— / 0
Wrecks · South Pacific Ocean	0	62	2	258	0.0× / 0.2
Wrecks · Tasman Sealong running	0	62	2	377	0.0× / 0.4
Surveys · The Northwestern Passages	0	62	2	222	— / 0
Ordnance · Tyrrhenian Sea	0	62	2	196	0.0× / 0.2
Incidents · Tyrrhenian Sea	0	62	2	39	0.0× / 0.4
Wrecks · Tyrrhenian Sealong running	0	62	2	436	— / 0
Other · Black Sea	0	53	1	173	0.0× / 0.2
Surveys · Gulf of Suez	0	49	1	317	— / 0
Cable ops · Andaman or Burma Sea	0	31	1	73	— / 0
Incidents · Arabian Sea	0	31	1	41	0.0× / 0.4
Surveys · Arabian Sealong running	0	31	1	506	0.0× / 0.4
Wrecks · Arabian Sealong running	0	31	1	404	0.0× / 0.2
Debris · Arctic Oceanlong running	0	31	1	891	— / 0
Volcanic · Banda Sea	0	31	1	59	— / 0
Restricted · Bay of Bengallong running	0	31	1	408	— / 0
Cable ops · Caribbean Sea	0	31	1	56	— / 0
Other · Caribbean Sea	0	31	1	185	— / 0
Restricted · Caribbean Sea	0	31	1	107	— / 0
Wrecks · Caribbean Sea	0	31	1	213	0.0× / 0.2
Surveys · Chukchi Sealong running	0	31	1	772	— / 0
Other · Coral Sea	0	31	1	81	— / 0
Other · Eastern China Sealong running	0	31	1	430	0.0× / 0.2
Surveys · Greenland Sealong running	0	31	1	1,555	— / 0
Cable ops · Gulf of Guinea	0	31	1	73	— / 0
Other · Gulf of Guinea	0	31	1	58	— / 0
Wrecks · Gulf of Guinea	0	31	1	230	— / 0
Other · Gulf of Mexicolong running	0	31	1	556	0.0× / 0.2
Structures · Gulf of Mexico	0	31	1	44	0.0× / 0.2
Other · Gulf of Suezlong running	0	31	1	454	0.0× / 0.2
Structures · Gulf of Suez	0	31	1	43	— / 0
Other · Gulf of Thailand	0	31	1	168	— / 0
Restricted · Indian Oceanlong running	0	31	1	767	— / 0
Surveys · Indian Ocean	0	31	1	239	0.0× / 0.6
Wrecks · Indian Oceanlong running	0	31	1	906	0.0× / 0.2
Nav aids · Ionian Sealong running	0	31	1	399	— / 0
Wrecks · Irish Sea and St. George's Channellong running	0	31	1	994	0.0× / 0.2
Wrecks · Laccadive Sea	0	31	1	106	— / 0
Nav aids · Malacca Straitlong running	0	31	1	609	— / 0
Wrecks · Malacca Straitlong running	0	31	1	429	— / 0
Restricted · Mediterranean Sea - Eastern Basin	0	31	1	359	— / 0
Wrecks · North Atlantic Oceanlong running	0	31	1	483	— / 0
Restricted · North Pacific Oceanlong running	0	31	1	374	0.0× / 0.4
Surveys · North Pacific Oceanlong running	0	31	1	668	0.0× / 0.4
Volcanic · North Pacific Oceanlong running	0	31	1	509	— / 0
Wrecks · North Pacific Ocean	0	31	1	78	0.0× / 0.2
Restricted · North Sea	0	31	1	297	— / 0

Cite: seahazards.com Sea Ledger, 2007-05, 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.