Sea Ledger, February 2015

2015-02-01 to 2015-02-28 · archive

issued: 488
warning-days in force: 10,748
in force at month end: 410
sea × type cells: 221

baseline: same month, previous 5 years (2014-02, 2013-02, 2012-02, 2011-02, 2010-02)

By type

type	issued	warning-days	in force at end
Incidents	127	2,115.6	100
Exercises	107	938.7	33
Nav aids	54	2,387.1	88
Cable ops	43	1,114.7	39
Icebergs	38	50.6	4
Quakes	29	88.1	2
Missiles	23	173.3	7
Derelicts	21	240.7	9
Surveys	13	1,106.2	39
Other	12	660.4	24
Spills	7	99	4
Wrecks	5	1,035.8	36
Debris	3	11.8	0
Volcanic	2	110.9	4
Containers	2	9	0
Restricted	1	166.5	5
Structures	1	244	9
War risk	0	56	2
Piracy	0	28	1
Ordnance	0	112	4

By sea and type · 200 cells, most issued first

cell	issued	warning-days	at end	longest d	vs 5 y
Icebergs · Labrador Seasurge	28	28	2	29	2.1× / 13.4
Incidents · North Pacific Ocean	27	408.9	20	51	1.6× / 17.2
Exercises · North Pacific Ocean	21	136.9	4	60	1.9× / 11.2
Incidents · North Atlantic Ocean	19	221.7	16	63	1.7× / 11
Nav aids · North Sealong running	18	459.2	14	819	1.4× / 12.4
Exercises · Black Seasurge	14	74.4	4	26	5.0× / 2.8
Exercises · Yellow Sea	13	85.5	3	31	2.0× / 6.6
Quakes · North Pacific Oceansurge	13	41.5	0	—	3.1× / 4.2
Incidents · South China Sea	12	165	7	49	1.0× / 11.6
Incidents · Mediterranean Sea - Eastern Basinsurge	10	244.8	10	44	4.5× / 2.2
Incidents · Indian Ocean	8	87.6	4	40	1.7× / 4.6
Incidents · South Atlantic Ocean	8	63.6	4	45	1.7× / 4.8
Exercises · North Atlantic Oceansurge	8	54.4	1	27	4.4× / 1.8
Missiles · North Atlantic Ocean	8	25.9	1	25	1.9× / 4.2
Exercises · South Pacific Oceansurge	8	20.7	2	17	2.2× / 3.6
Exercises · Arabian Sea	7	68.6	1	30	1.3× / 5.6
Cable ops · South Atlantic Ocean	6	204.5	8	142	0.2× / 34.8
Incidents · Arabian Seasurge	6	144.3	8	70	5.0× / 1.2
Cable ops · South China Seasurge	6	94.8	4	143	6.0× / 1
Nav aids · South Atlantic Ocean	5	171.6	7	112	1.0× / 5
Incidents · South Pacific Ocean	5	115.9	4	80	0.9× / 5.4
Cable ops · Arabian Seasurge	5	115.2	4	52	3.6× / 1.4
Nav aids · Coral Sea	5	103.4	5	316	1.5× / 3.4
Incidents · Philippine Seasurge	5	73.5	1	57	3.6× / 1.4
Exercises · Bay of Bengal	5	72.5	2	31	0.8× / 6.6
Icebergs · South Atlantic Oceansurge	5	14.3	1	26	3.1× / 1.6
Incidents · Coral Seasurge	5	5.2	0	—	2.3× / 2.2
Exercises · Gulf of Mexicosurge	5	3.9	1	24	2.1× / 2.4
Surveys · South Atlantic Ocean	4	244.7	9	213	0.8× / 5
Nav aids · North Atlantic Oceanlong running	4	206.4	8	695	0.8× / 4.8
Exercises · Aegean Seasurge	4	171.2	6	57	2.5× / 1.6
Incidents · Laccadive Seasurge	4	86.2	3	32	2.9× / 1.4
Derelicts · South Pacific Oceansurgelong running	4	76.5	3	976	6.7× / 0.6
Incidents · Gulf of Mexicosurge	4	71.2	4	44	2.2× / 1.8
Missiles · Norwegian Seanew	4	36.8	2	26	new / 0
Quakes · South Pacific Ocean	4	13.9	0	—	0.2× / 18.8
Wrecks · Arabian Seasurgelong running	3	239.6	7	681	3.8× / 0.8
Surveys · North Atlantic Oceansurge	3	144.1	5	270	5.0× / 0.6
Incidents · Mozambique Channelsurge	3	139.9	6	45	2.1× / 1.4
Nav aids · Indian Oceanlong running	3	40.3	3	374	1.7× / 1.8
Cable ops · Philippine Seasurge	3	33.5	2	33	3.0× / 1
Exercises · Philippine Sea	3	32.4	1	31	1.0× / 3
Incidents · Caribbean Sea	3	30.7	3	23	1.4× / 2.2
Missiles · North Pacific Ocean	3	30.7	1	32	0.5× / 5.8
Cable ops · Gulf of Guineasurge	3	30.4	2	17	5.0× / 0.6
Nav aids · Bass Straitlong running	3	28.4	1	698	0.7× / 4.2
Cable ops · South Pacific Oceansurge	3	14.1	0	—	3.8× / 0.8
Exercises · South Atlantic Ocean	3	13.9	1	12	1.1× / 2.8
Exercises · Mediterranean Sea - Eastern Basin	3	11.9	1	29	0.9× / 3.4
Quakes · Coral Sea	3	9	0	—	0.2× / 15.2
Derelicts · Indian Ocean	3	9	0	—	0.8× / 3.6
Derelicts · Arabian Seasurge	3	6.1	1	17	3.8× / 0.8
Exercises · Tasman Seanew	3	5.8	0	—	new / 0
Derelicts · Tasman Seasurge	3	5.3	0	—	5.0× / 0.6
Other · North Sealong running	2	154.5	5	899	2.5× / 0.8
Cable ops · Gulf of Mexicolong running	2	93	4	393	1.7× / 1.2
Cable ops · Bay of Bengal	2	78.1	3	58	1.3× / 1.6
Exercises · South China Sea	2	69.2	2	59	0.8× / 2.6
Nav aids · English Channellong running	2	62.4	2	1,059	0.7× / 2.8
Nav aids · Irish Sea and St. George's Channel	2	59.6	2	211	0.8× / 2.4
Exercises · Laccadive Sea	2	39.1	1	30	0.9× / 2.2
Nav aids · Bay of Bengal	2	32.3	2	358	2.5× / 0.8
Derelicts · North Pacific Ocean	2	29.2	1	26	5.0× / 0.4
Spills · Gulf of Mexico	2	28	0	—	0.6× / 3.2
Cable ops · North Atlantic Ocean	2	28	0	—	0.6× / 3.6
Missiles · Bay of Bengal	2	18.9	0	—	1.4× / 1.4
Derelicts · South Atlantic Ocean	2	15.4	1	30	1.1× / 1.8
Cable ops · Irish Sea and St. George's Channel	2	12.2	0	—	5.0× / 0.4
Spills · North Atlantic Ocean	2	12	2	11	2.0× / 1
Containers · Mediterranean Sea - Western Basinnew	2	6	0	—	new / 0
Quakes · South Atlantic Ocean	2	6	0	—	1.7× / 1.2
Missiles · Barentsz Sea	2	4.4	1	3	5.0× / 0.4
Quakes · Philippine Sea	2	4.3	1	15	0.8× / 2.6
Exercises · Baltic Sea	2	3.8	1	5	2.0× / 1
Icebergs · Barentsz Seanew	2	3.8	1	3	new / 0
Icebergs · Gulf of St. Lawrence	2	1.5	0	—	3.3× / 0.6
Restricted · North Sealong running	1	138.5	4	1,286	new / 0
Nav aids · North Pacific Ocean	1	115.2	4	232	0.4× / 2.6
Other · North Pacific Oceanlong running	1	109.6	4	1,048	5.0× / 0.2
Surveys · Indian Ocean	1	83.8	2	49	5.0× / 0.2
Derelicts · North Atlantic Ocean	1	62.2	2	192	0.3× / 3.8
Exercises · Ionian Sea	1	60.6	2	53	new / 0
Other · North Atlantic Oceanlong running	1	59.2	2	474	1.3× / 0.8
Incidents · Bay of Bengal	1	58.9	2	68	1.0× / 1
Wrecks · English Channel	1	58.9	2	220	new / 0
Nav aids · Persian Gulflong running	1	57.5	3	598	new / 0
Nav aids · Celtic Sealong running	1	56	2	856	0.7× / 1.4
Volcanic · Philippine Sealong running	1	56	2	1,035	2.5× / 0.4
Volcanic · South Pacific Ocean	1	54.9	2	51	2.5× / 0.4
Cable ops · Indian Ocean	1	53.6	1	40	2.5× / 0.4
Cable ops · North Pacific Ocean	1	52.1	1	44	2.5× / 0.4
Structures · South Atlantic Ocean	1	48	2	28	new / 0
Surveys · Caribbean Sea	1	46.1	2	162	5.0× / 0.2
Nav aids · Mediterranean Sea - Western Basin	1	44.7	2	135	1.3× / 0.8
Cable ops · Tasman Sea	1	43.8	1	28	2.5× / 0.4
Cable ops · Mediterranean Sea - Eastern Basin	1	43.2	1	52	0.5× / 2.2
Other · South Atlantic Oceanlong running	1	43	1	481	2.5× / 0.4
Surveys · Mediterranean Sea - Eastern Basin	1	31.3	2	60	5.0× / 0.2
Incidents · Andaman or Burma Sea	1	31	1	73	5.0× / 0.2
Derelicts · Gulf of Mexico	1	31	1	33	new / 0
Nav aids · Great Australian Bight	1	28.4	1	86	0.4× / 2.6
Incidents · Tasman Sea	1	28.1	1	37	1.7× / 0.6
Spills · North Pacific Ocean	1	28	0	—	1.7× / 0.6
Other · English Channel	1	26.5	1	26	new / 0
Incidents · Davis Strait	1	20.9	1	20	1.7× / 0.6
Surveys · Arabian Sea	1	19.1	0	—	1.7× / 0.6
Spills · The Coastal Waters of Southeast Alaska and British Columbia	1	18	1	40	1.3× / 0.8
Cable ops · North Sea	1	16.5	1	16	0.7× / 1.4
Incidents · Gulf of Thailand	1	16.1	1	16	2.5× / 0.4
Spills · Gulf of Alaska	1	13	1	13	5.0× / 0.2
Cable ops · Caribbean Sea	1	12	0	—	new / 0
Surveys · Gulf of Suez	1	11.5	1	11	1.7× / 0.6
Missiles · Arctic Ocean	1	10.8	1	49	2.5× / 0.4
Cable ops · Laccadive Sea	1	10.5	1	10	1.7× / 0.6
Other · Ligurian Sea	1	9.1	1	9	new / 0
Other · Arabian Sea	1	8.3	1	8	5.0× / 0.2
Wrecks · Laccadive Sea	1	7.2	1	7	new / 0
Cable ops · Eastern China Sea	1	6.9	0	—	2.5× / 0.4
Missiles · Indian Ocean	1	6.7	0	—	0.7× / 1.4
Incidents · Ceram Sea	1	6.1	0	—	new / 0
Missiles · South Pacific Ocean	1	6	0	—	0.7× / 1.4
Debris · Bay of Bengal	1	5.8	0	—	new / 0
Other · Bay of Bengal	1	5.5	1	5	5.0× / 0.2
Incidents · Balearic (Iberian Sea)	1	5.4	1	5	new / 0
Exercises · Andaman or Burma Sea	1	5.1	0	—	1.7× / 0.6
Missiles · Laccadive Sea	1	5	0	—	1.3× / 0.8
Surveys · North Sea	1	4.9	0	—	5.0× / 0.2
Exercises · Caribbean Sea	1	4.6	0	—	5.0× / 0.2
Exercises · Barentsz Sea	1	4.2	0	—	new / 0
Nav aids · Gulf of California	1	3.3	0	—	new / 0
Cable ops · Mediterranean Sea - Western Basin	1	3.3	1	3	5.0× / 0.2
Derelicts · Caribbean Sea	1	3	0	—	5.0× / 0.2
Debris · Indian Ocean	1	3	0	—	5.0× / 0.2
Icebergs · Indian Ocean	1	3	0	—	5.0× / 0.2
Quakes · Makassar Strait	1	3	0	—	new / 0
Quakes · North Atlantic Ocean	1	3	0	—	1.3× / 0.8
Derelicts · Philippine Sea	1	3	0	—	1.3× / 0.8
Quakes · Southern Ocean	1	3	0	—	1.3× / 0.8
Quakes · Sulu Sea	1	3	0	—	new / 0
Debris · Tasman Sea	1	3	0	—	2.5× / 0.4
Nav aids · Arafura Sea	1	2	0	—	5.0× / 0.2
Other · Coral Sea	1	1.8	0	—	2.5× / 0.4
Nav aids · Norwegian Sea	1	1.6	0	—	new / 0
Quakes · Banda Sea	1	1.4	1	1	1.7× / 0.6
Other · Labrador Sea	1	0.9	0	—	new / 0
Incidents · Bay of Biscay	1	0.2	0	—	new / 0
Nav aids · South Pacific Ocean	1	0.2	1	0	1.0× / 1
Other · Arafura Sea	1	0.1	0	—	new / 0
Nav aids · Tasman Sea	1	0.1	0	—	0.6× / 1.8
Surveys · Arctic Oceanlong running	0	168	6	1,587	0.0× / 0.2
Nav aids · Caribbean Sealong running	0	165.9	5	502	0.0× / 0.8
Surveys · Beaufort Sealong running	0	140	5	1,662	— / 0
Nav aids · Gulf of Mexicolong running	0	126.7	4	378	0.0× / 2.4
Nav aids · Inner Seas off the West Coast of Scotlandlong running	0	112	4	604	0.0× / 3.4
Structures · North Sealong running	0	112	4	1,293	0.0× / 0.6
Wrecks · North Sealong running	0	112	4	719	— / 0
Nav aids · South China Sealong running	0	112	4	1,293	— / 0
Nav aids · Arabian Sealong running	0	86.5	3	974	— / 0
Other · Caribbean Sea	0	84	3	50	— / 0
Wrecks · North Atlantic Oceanlong running	0	84	3	1,239	— / 0
Ordnance · North Sealong running	0	84	3	1,193	0.0× / 0.2
Nav aids · Kara Sealong running	0	59.4	2	1,270	— / 0
Wrecks · Caribbean Sea	0	56	2	137	0.0× / 0.2
Nav aids · Mediterranean Sea - Eastern Basin	0	56	2	122	— / 0
War risk · Mediterranean Sea - Eastern Basinlong running	0	56	2	1,375	— / 0
Cable ops · Persian Gulf	0	56	2	58	0.0× / 0.6
Nav aids · Sea of Okhotsklong running	0	56	2	1,166	— / 0
Wrecks · South Atlantic Ocean	0	56	2	126	0.0× / 0.4
Other · South China Sealong running	0	56	2	556	0.0× / 0.2
Other · Mediterranean Sea - Eastern Basin	0	34.4	1	178	0.0× / 1
Wrecks · South Pacific Oceanlong running	0	30.1	1	517	0.0× / 0.2
Nav aids · Adriatic Sea	0	28	1	36	— / 0
Missiles · Aegean Sea	0	28	1	57	— / 0
Nav aids · Andaman or Burma Sea	0	28	1	135	0.0× / 0.4
Structures · Arabian Sea	0	28	1	220	— / 0
Wrecks · Arctic Oceanlong running	0	28	1	554	— / 0
Cable ops · Barentsz Sea	0	28	1	161	— / 0
Wrecks · Barentsz Sea	0	28	1	311	— / 0
Wrecks · Bay of Bengal	0	28	1	200	— / 0
Surveys · Bering Sea	0	28	1	239	— / 0
Cable ops · Black Sea	0	28	1	149	— / 0
Restricted · Black Sealong running	0	28	1	633	— / 0
Surveys · Black Sea	0	28	1	40	0.0× / 0.2
Surveys · Chukchi Sea	0	28	1	157	— / 0
Surveys · Coral Sealong running	0	28	1	493	— / 0
Wrecks · Coral Sealong running	0	28	1	458	0.0× / 0.2
Wrecks · East Siberian Sea	0	28	1	130	— / 0
Nav aids · Eastern China Sealong running	0	28	1	1,110	0.0× / 0.6
Incidents · Eastern China Sea	0	28	1	45	0.0× / 0.2
Wrecks · Eastern China Sealong running	0	28	1	484	— / 0
Wrecks · Gulf of Guinea	0	28	1	149	— / 0
Other · Indian Ocean	0	28	1	272	0.0× / 0.4
Ordnance · Inner Seas off the West Coast of Scotlandlong running	0	28	1	631	— / 0
Wrecks · Inner Seas off the West Coast of Scotland	0	28	1	304	— / 0
Incidents · Ionian Sea	0	28	1	43	0.0× / 0.6
Wrecks · Irish Sea and St. George's Channel	0	28	1	145	0.0× / 0.2
Wrecks · Japan Sea	0	28	1	296	— / 0
Piracy · Java Sea	0	28	1	30	— / 0
Cable ops · Kara Sealong running	0	28	1	462	— / 0
Wrecks · Kara Sea	0	28	1	114	— / 0

Cite: seahazards.com Sea Ledger, 2015-02, 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.