Sea Ledger, June 2010

2010-06-01 to 2010-06-30 · archive

issued: 414
warning-days in force: 7,809
in force at month end: 260
sea × type cells: 192

baseline: same month, previous 5 years (2009-06, 2008-06, 2007-06, 2006-06, 2005-06)

By type

type	issued	warning-days	in force at end
Nav aids	78	1,280.6	51
Exercises	77	715.3	23
Cable ops	64	1,203.6	41
Incidents	55	1,089.6	34
Quakes	35	101.8	7
Missiles	24	167.9	4
Derelicts	15	48.7	1
Ordnance	14	162.9	8
Piracy	13	194.1	4
Surveys	10	1,974.5	61
Restricted	8	19	4
Icebergs	6	21.9	0
Other	5	318.1	10
Wrecks	2	283	9
Containers	2	6	0
Towing	2	47	0
Spills	2	38.1	0
Debris	2	33	1
Structures	0	73.8	1
Volcanic	0	30	1

By sea and type · 192 cells, most issued first

cell	issued	warning-days	at end	longest d	vs 5 y
Cable ops · South Atlantic Oceanlong running	29	304.7	10	599	1.5× / 19.6
Incidents · North Atlantic Oceansurge	21	401.6	14	55	3.1× / 6.8
Nav aids · North Sea	14	98.6	4	104	1.9× / 7.2
Exercises · North Pacific Ocean	14	82.5	2	35	1.4× / 10
Quakes · South Pacific Ocean	13	35.7	3	29	1.6× / 8.2
Incidents · North Pacific Ocean	12	161.2	5	55	1.4× / 8.8
Nav aids · North Atlantic Oceansurgelong running	12	135.5	4	487	6.7× / 1.8
Exercises · Japan Seasurge	12	83.4	4	33	2.1× / 5.6
Missiles · North Pacific Oceansurge	11	99.9	2	60	2.0× / 5.4
Nav aids · South Atlantic Oceansurgelong running	9	365.9	14	679	2.0× / 4.4
Quakes · North Pacific Ocean	9	22.7	3	29	1.6× / 5.6
Exercises · Philippine Seasurge	8	82.4	3	34	3.3× / 2.4
Exercises · South Atlantic Ocean	7	54.6	2	54	1.6× / 4.4
Exercises · Yellow Seasurge	7	40.1	2	33	2.1× / 3.4
Nav aids · North Pacific Oceansurge	7	19.3	2	26	18× / 0.4
Cable ops · South China Seasurge	6	145.8	5	94	5.0× / 1.2
Nav aids · Gulf of Mexicosurge	6	8	2	22	5.0× / 1.2
Exercises · Laccadive Sea	5	34.5	1	34	1.0× / 5.2
Restricted · Mediterranean Sea - Eastern Basinsurge	5	11.3	2	9	8.3× / 0.6
Nav aids · The Coastal Waters of Southeast Alaska and British Columbiasurge	5	5.6	0	—	3.6× / 1.4
Cable ops · Gulf of Mexicosurge	4	152.3	5	230	2.9× / 1.4
Nav aids · English Channel	4	77.6	3	69	1.4× / 2.8
Incidents · South Atlantic Ocean	4	49.9	0	—	1.1× / 3.6
Piracy · Red Seasurge	4	43	1	26	20× / 0.2
Cable ops · Celtic Sea	4	17.9	1	30	1.5× / 2.6
Nav aids · Coral Seasurge	4	10.1	1	27	2.9× / 1.4
Nav aids · South Pacific Ocean	3	147.4	5	167	1.4× / 2.2
Nav aids · Irish Sea and St. George's Channel	3	76.6	2	302	1.1× / 2.6
Incidents · South Pacific Ocean	3	70.9	3	53	0.5× / 6
Cable ops · North Atlantic Ocean	3	67.1	2	35	0.8× / 3.8
Piracy · Gulf of Adensurge	3	48.5	1	33	15× / 0.2
Exercises · Gulf of Mexicosurge	3	47.1	0	—	5.0× / 0.6
Cable ops · North Sea	3	44.5	3	28	1.7× / 1.8
Cable ops · Bay of Bengalsurge	3	43.6	0	—	3.8× / 0.8
Ordnance · Gulf of Adennew	3	39.4	2	67	new / 0
Exercises · North Atlantic Ocean	3	36	1	85	0.5× / 6.2
Piracy · South China Seasurge	3	28.8	0	—	3.8× / 0.8
Missiles · North Atlantic Oceannew	3	27.8	0	—	new / 0
Exercises · Bay of Bengal	3	26.9	0	—	0.5× / 6.2
Exercises · Arabian Seasurge	3	15.7	1	31	2.1× / 1.4
Surveys · North Atlantic Ocean	3	12.6	0	—	1.1× / 2.6
Derelicts · Indian Oceansurge	3	9	0	—	3.0× / 1
Icebergs · North Atlantic Oceansurge	3	9	0	—	3.0× / 1
Icebergs · Labrador Seanew	3	8.9	0	—	new / 0
Quakes · Solomon Sea	3	8.2	1	28	1.9× / 1.6
Derelicts · North Atlantic Ocean	3	6.3	0	—	1.4× / 2.2
Cable ops · Mediterranean Sea - Eastern Basin	2	92.4	3	118	0.8× / 2.6
Cable ops · Arabian Sea	2	80.8	3	60	2.5× / 0.8
Incidents · Gulf of Mexiconew	2	70.3	3	49	new / 0
Exercises · South China Sea	2	69.9	2	34	3.3× / 0.6
Other · North Atlantic Ocean	2	53.8	3	46	1.3× / 1.6
Other · Gulf of Mexico	2	44.3	1	36	10× / 0.2
Cable ops · Gulf of Guineanew	2	42.3	2	79	new / 0
Ordnance · North Sealong running	2	33.3	2	607	1.7× / 1.2
Incidents · Arabian Sea	2	28.1	1	28	1.4× / 1.4
Nav aids · Sea of Okhotsk	2	20.5	1	19	2.5× / 0.8
Ordnance · Ionian Seanew	2	15	2	65	new / 0
Ordnance · North Pacific Oceannew	2	13.3	0	—	new / 0
Incidents · Tasman Sea	2	13.3	0	—	1.3× / 1.6
Missiles · Japan Seanew	2	8.9	1	12	new / 0
Incidents · Indian Ocean	2	7.7	1	8	0.8× / 2.6
Incidents · South China Sea	2	7.3	2	33	1.1× / 1.8
Exercises · Adriatic Sea	2	6.8	0	—	10× / 0.2
Quakes · Bay of Bengal	2	6	0	—	2.0× / 1
Quakes · Indian Ocean	2	6	0	—	0.8× / 2.4
Missiles · Black Seanew	2	3.8	0	—	new / 0
Missiles · Indian Oceannew	2	3.6	0	—	new / 0
Derelicts · Caribbean Sea	2	3.3	0	—	10× / 0.2
Debris · South Atlantic Ocean	2	3	0	—	10× / 0.2
Restricted · Strait of Gibraltar	2	2.9	2	1	5.0× / 0.4
Incidents · Coral Sea	2	2.2	0	—	2.5× / 0.8
Nav aids · Inner Seas off the West Coast of Scotland	2	1.5	1	11	0.6× / 3.4
Incidents · Caribbean Sea	1	129.7	2	58	new / 0
Exercises · Aegean Sea	1	92.2	3	182	0.6× / 1.8
Nav aids · Arabian Sea	1	67	3	196	1.0× / 1
Cable ops · Ceram Sea	1	60.3	3	210	new / 0
Ordnance · English Channel	1	41.6	2	106	new / 0
Surveys · Mediterranean Sea - Eastern Basin	1	35.5	0	—	0.4× / 2.4
Surveys · Mozambique Channel	1	34.4	1	70	5.0× / 0.2
Wrecks · Arabian Sea	1	31.7	1	196	new / 0
Surveys · North Pacific Ocean	1	31.5	0	—	1.7× / 0.6
Cable ops · Tasman Sea	1	30	1	37	5.0× / 0.2
Cable ops · Mediterranean Sea - Western Basin	1	27.4	1	27	0.7× / 1.4
Cable ops · Norwegian Sea	1	26.7	0	—	1.0× / 1
Surveys · South China Sea	1	26.3	1	26	new / 0
Surveys · Irish Sea and St. George's Channel	1	22.5	0	—	1.0× / 1
Spills · Gulf of Mexico	1	22.1	0	—	0.2× / 4.8
Towing · Sea of Okhotsk	1	20.5	0	—	new / 0
Nav aids · Tasman Sea	1	18	0	—	5.0× / 0.2
Spills · North Pacific Ocean	1	16	0	—	0.7× / 1.4
Exercises · Gulf of California	1	15.7	0	—	new / 0
Ordnance · Philippine Sea	1	14.2	0	—	5.0× / 0.2
Surveys · South Pacific Ocean	1	13.9	1	13	2.5× / 0.4
Piracy · Arabian Sea	1	12.8	0	—	new / 0
Nav aids · Caribbean Sea	1	12.1	1	12	2.5× / 0.4
Exercises · Baltic Sea	1	11.1	0	—	0.6× / 1.6
Derelicts · Gulf of Mexico	1	10.3	0	—	2.5× / 0.4
Cable ops · Black Sea	1	9.9	0	—	new / 0
Missiles · South Atlantic Ocean	1	9.3	0	—	new / 0
Exercises · Black Sea	1	9	1	30	0.4× / 2.6
Piracy · Gulf of Thailand	1	7.2	0	—	new / 0
Cable ops · Persian Gulf	1	6.9	1	6	1.7× / 0.6
Surveys · Celtic Sea	1	6	0	—	1.7× / 0.6
Missiles · Philippine Sea	1	6	0	—	new / 0
Quakes · Andaman or Burma Sea	1	5.8	0	—	new / 0
Derelicts · South Atlantic Ocean	1	5.5	0	—	1.7× / 0.6
Missiles · Bay of Bengal	1	4.9	0	—	new / 0
Restricted · Alboran Sea	1	4.8	0	—	new / 0
Missiles · Laccadive Sea	1	3.7	1	3	new / 0
Nav aids · Gulf of Alaska	1	3.2	0	—	1.3× / 0.8
Containers · Arabian Sea	1	3	0	—	2.5× / 0.4
Quakes · Bismarck Sea	1	3	0	—	0.8× / 1.2
Derelicts · Coral Sea	1	3	0	—	new / 0
Quakes · Coral Sea	1	3	0	—	0.4× / 2.4
Derelicts · Eastern China Sea	1	3	0	—	new / 0
Quakes · Greenland Sea	1	3	0	—	new / 0
Containers · North Sea	1	3	0	—	new / 0
Quakes · Philippine Sea	1	3	0	—	1.3× / 0.8
Quakes · South Atlantic Ocean	1	3	0	—	0.6× / 1.6
Derelicts · South Pacific Ocean	1	3	0	—	0.6× / 1.6
Derelicts · Tasman Sea	1	3	0	—	new / 0
Exercises · Indian Ocean	1	2.9	0	—	2.5× / 0.4
Ordnance · Mediterranean Sea - Western Basin	1	2.7	0	—	new / 0
Ordnance · Mediterranean Sea - Eastern Basin	1	2.6	0	—	new / 0
Other · Philippine Sea	1	2.6	0	—	new / 0
Exercises · South Pacific Ocean	1	2.5	1	2	0.4× / 2.4
Derelicts · Arabian Sea	1	2.3	1	2	1.0× / 1
Piracy · Singapore Strait	1	1.8	1	1	5.0× / 0.2
Wrecks · Bristol Channel	1	1.6	0	—	2.5× / 0.4
Nav aids · Great Australian Bight	1	1.4	0	—	1.3× / 0.8
Nav aids · Gulf of California	1	1.4	1	1	5.0× / 0.2
Exercises · Mediterranean Sea - Western Basin	1	1.1	0	—	5.0× / 0.2
Towing · North Atlantic Ocean	1	1.1	0	—	new / 0
Exercises · Bering Sea	1	0.9	0	—	1.7× / 0.6
Nav aids · Indian Ocean	1	0.9	0	—	0.6× / 1.6
Ordnance · Red Sea	1	0.8	0	—	new / 0
Incidents · Celtic Sea	1	0.3	0	—	2.5× / 0.4
Incidents · Hudson Strait	1	0.1	0	—	new / 0
Surveys · Beaufort Sealong running	0	690	23	2,365	— / 0
Surveys · Arctic Oceanlong running	0	450	15	2,365	— / 0
Surveys · Baffin Baylong running	0	150	5	2,463	— / 0
Surveys · The Northwestern Passageslong running	0	150	5	1,348	— / 0
Nav aids · Gulf of Suezlong running	0	90	3	544	0.0× / 0.2
Surveys · Laptev Sealong running	0	90	3	1,499	— / 0
Wrecks · The Northwestern Passageslong running	0	90	3	662	— / 0
Nav aids · Malacca Strait	0	60	2	99	— / 0
Other · South Atlantic Ocean	0	60	2	49	0.0× / 1.2
Wrecks · South China Sealong running	0	60	2	1,071	0.0× / 0.6
Other · South China Sealong running	0	52	1	714	0.0× / 0.2
Other · Mediterranean Sea - Eastern Basin	0	34	1	169	0.0× / 0.6
Debris · Arctic Oceanlong running	0	30	1	2,017	— / 0
Other · Arctic Oceanlong running	0	30	1	1,030	— / 0
Surveys · Bering Sealong running	0	30	1	622	— / 0
Nav aids · Celtic Sea	0	30	1	87	0.0× / 1.8
Other · Celtic Sea	0	30	1	62	0.0× / 0.4
Surveys · Chukchi Sealong running	0	30	1	1,898	— / 0
Surveys · Greenland Sealong running	0	30	1	2,681	— / 0
Surveys · Gulf of California	0	30	1	32	— / 0
Surveys · Gulf of Mexico	0	30	1	75	0.0× / 0.2
Incidents · Ionian Sea	0	30	1	46	0.0× / 0.2
Incidents · Mediterranean Sea - Eastern Basin	0	30	1	30	0.0× / 1.4
Nav aids · Mozambique Channel	0	30	1	71	— / 0
Wrecks · North Atlantic Ocean	0	30	1	350	0.0× / 0.2
Structures · North Sea	0	30	1	72	0.0× / 0.8
Surveys · North Sea	0	30	1	119	0.0× / 1
Wrecks · North Sea	0	30	1	40	0.0× / 0.2
Piracy · Persian Gulflong running	0	30	1	903	— / 0
Incidents · Philippine Sea	0	30	1	42	0.0× / 5.8
Volcanic · Philippine Sea	0	30	1	124	— / 0
Surveys · South Atlantic Ocean	0	30	1	31	0.0× / 0.6
Wrecks · South Atlantic Ocean	0	30	1	49	— / 0
Cable ops · Yellow Sea	0	30	1	84	— / 0
Surveys · Gulf of Guinea	0	25.4	0	—	0.0× / 0.2
Towing · Makassar Strait	0	25.4	0	—	— / 0
Structures · Mediterranean Sea - Eastern Basin	0	25.4	0	—	0.0× / 0.2
Incidents · Bay of Bengal	0	18.4	0	—	0.0× / 1
Structures · Black Sea	0	18.4	0	—	— / 0
Surveys · Gulf of Suez	0	18.4	0	—	— / 0
Incidents · Tyrrhenian Sea	0	18.4	0	—	0.0× / 0.4
Piracy · Indian Ocean	0	17.6	0	—	— / 0
Other · Irish Sea and St. George's Channel	0	11.4	0	—	0.0× / 0.2
Incidents · Laccadive Sea	0	11.4	0	—	— / 0
Cable ops · Eastern China Sea	0	10	0	—	0.0× / 0.4
Cable ops · Singapore Strait	0	10	0	—	0.0× / 1
Wrecks · Inner Seas off the West Coast of Scotland	0	9.7	0	—	0.0× / 0.2
Surveys · Malacca Strait	0	8	0	—	— / 0
Incidents · Adriatic Sea	0	4.4	0	—	— / 0
Incidents · Ligurian Sea	0	4.4	0	—	— / 0
Piracy · Mozambique Channel	0	4.4	0	—	— / 0
Icebergs · Southern Ocean	0	4	0	—	0.0× / 3
Quakes · Celebes Sea	0	2.4	0	—	0.0× / 0.4
Cable ops · Banda Sea	0	1	0	—	— / 0

Cite: seahazards.com Sea Ledger, 2010-06, 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.