Sea Ledger, February 1998

1998-02-01 to 1998-02-28 · archive

issued
35
warning-days in force
1,472
in force at month end
56
sea × type cells
51

baseline: same month, previous 5 years — not available for this month (needs three fully collected reference months)

By type

typeissuedwarning-daysin force at end
Quakes2368.53
Spills91327
Nav aids240615
Incidents1165.26
Other02248
War risk01124
Surveys01124
Derelicts0562
Containers0281
Towing0281
Exercises0281
Wrecks0562
Ordnance0281
Volcanic0281

By sea and type · 51 cells, most issued first

cellissuedwarning-daysvs 5 y
Spills · North Atlantic Ocean668
Quakes · South Pacific Ocean622.5
Quakes · North Pacific Ocean518
Spills · Gulf of Mexico342
Quakes · North Atlantic Ocean39
Quakes · Coral Sea36.6
Quakes · Banda Sea26
Quakes · Philippine Sea23.3
Nav aids · Persian Gulf149.6
Incidents · South Pacific Ocean125.2
Nav aids · Indian Ocean120.4
Quakes · Sea of Okhotsk13
Quakes · Solomon Sea10.1
War risk · Persian Gulf0112
Nav aids · North Sea056
Other · North Sea056
Nav aids · Tyrrhenian Sealong running056
Nav aids · Adriatic Sea028
Other · Adriatic Sealong running028
Surveys · Adriatic Sea028
Exercises · Aegean Sea028
Towing · Black Sea028
Nav aids · Bristol Channel028
Incidents · Caribbean Sealong running028
Containers · Celtic Sea028
Ordnance · English Channel028
Other · Gulf of Mexicolong running028
Derelicts · Indian Ocean028
Other · Labrador Sealong running028
Incidents · Ligurian Sealong running028
Wrecks · Malacca Straitlong running028
Nav aids · Mediterranean Sea - Eastern Basin028
Nav aids · North Atlantic Oceanlong running028
Other · North Atlantic Oceanlong running028
Incidents · North Atlantic Oceanlong running028
Surveys · North Atlantic Ocean028
Derelicts · North Pacific Oceanlong running028
Nav aids · North Pacific Oceanlong running028
Surveys · North Sea028
Wrecks · Persian Gulflong running028
Nav aids · Philippine Sealong running028
Volcanic · Philippine Sealong running028
Other · Red Sealong running028
Other · South Atlantic Ocean028
Incidents · South Atlantic Ocean028
Surveys · South Atlantic Ocean028
Incidents · South China Sealong running028
Nav aids · South Pacific Oceanlong running028
Nav aids · Timor Sealong running028
Spills · North Pacific Ocean015
Spills · South Pacific Ocean07

Cite: seahazards.com Sea Ledger, 1998-02, 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.

Sea Ledger, February 1998 — warnings by sea and type · seahazards