497/26
Military submarine operations in Northern Ionian Sea (Gulf of Taranto)
No longer in forceReceived 26 Oct 2026, 15:56 UTCArchived 30 Oct 2026, 23:32 UTC
Warning text
Positions open on the mapCOASTAL WARNING 497/26 OCT 19
NORTHERN IONIAN SEA TARANTO GULF.
FROM 261000Z OCT 26 TO 120800Z NOV 26, IN THE FOLLOWING AREA:
LAT. LONG.
40-18.00N 016-51.00E
40-24.00N 016-54.00E
40-26.500N 016-57.000E
40-29.000N 017-02.500E
40-24.200N 017-12.000E
40-23.00N 017-12.00E
40-22.500N 017-11.500E
40-22.00N 017-12.00E
40-18.00N 017-12.00E
FROM 261000Z OCT 26 TO 120800Z NOV 26, IN THE FOLLOWING AREA:
SIERRA 731,
FROM 261000Z OCT 26 TO 280800Z OCT 26, IN THE FOLLOWING AREAS:
SIERRA 733 ALFA E BRAVO,
WILL BE CARRIED OUT MILITARY ACTIVITIES WITH SUBMARINE OPS.
ANCORAGE, FISHING AND OTHER UNDERWATER ACTIVITIES ARE PROHIBITED
(BROADCAST VALID 26 OCT 2026 2330 TO 30 OCT 2026 1530 ITALIAN TIME.)
Location map
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No longer in forceMilitary activities with submarine operations will take place in the Northern Ionian Sea, Gulf of Taranto, in the areas defined. Anchorage, fishing and other underwater activities are prohibited in the specified areas. Two subareas have different activity end times: SIERRA 731 to mid-November and SIERRA 733 ALFA and BRAVO until 28 Oct 2026 08:00Z.
Do not anchor, fish or conduct underwater activities in the listed areas. Keep clear of the areas and maintain a proper lookout and safe navigation.
- Type
- Military exercise · severity high
- Feed
- Military exercises and firingAll warnings of this kind on the map, or as an API feed.
- Location
- Northern Ionian Sea, Gulf of Taranto
- Validity
- From 26 Oct 2026, 10:00 UTC
Until 12 Nov 2026, 08:00 UTCFROM 261000Z OCT 26 TO 120800Z NOV 26; FROM 261000Z OCT 26 TO 280800Z OCT 26 - Activity periods
- 26 Oct 2026, 10:00 UTC - 12 Nov 2026, 08:00 UTC (SIERRA 731: military activities with submarine operations)
- 26 Oct 2026, 10:00 UTC - 28 Oct 2026, 08:00 UTC (SIERRA 733 ALFA and BRAVO: military activities with submarine operations)
- Hazards
- submarine operations, prohibited anchoring, prohibited fishing, prohibited underwater activities
Coast stations for this area
- RCCMRSC Reggio CalabriaItaly78 NM from the area
- RCCMRSC BariItaly99 NM from the area
- RCCMRSC NapoliItaly123 NM from the area
- DSCDSC Station M. TitoloMRSC Reggio CalabriaItalyMMSI 002470002VHF 55range 55 NM22 NM from the area
- DSCDSC Station Bari (Monte Parano)MRSC BariItalyMMSI 002470002VHF 35, MF 200range 200 NM27 NM from the area
- DSCDSC Station Abbate ArgentoMRSC BariItalyMMSI 002470002VHF 54range 54 NM39 NM from the area
- DSCDSC Station Serra del TuonoMRSC Reggio CalabriaItalyMMSI 002470002VHF 70range 70 NM55 NM from the area
- DSCDSC Station Monte SardoMRSC BariItalyMMSI 002470002VHF 39range 39 NM73 NM from the area
Worked out automatically from the warning text on 28 Oct 2026, 15:18 UTC. It can be wrong: the official warning text is the authority.