500/26

Military submarine operations in Northern Ionian Sea (Gulf of Taranto) - restricted areas

No longer in forceReceived 21 Oct 2026, 07:40 UTCArchived 22 Oct 2026, 23:34 UTC

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COASTAL WARNING 500/26 OCT 20 (UPDATE) NORTHERN IONIAN SEA TARANTO GULF. FROM 211200Z OCT 26 TO 221400Z OCT 26 IN: ZONE BOUNDED BY THE FOLLOWING POINTS: 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 210700Z OCT 26 TO 221400Z OCT 26 IN: ZONE SIERRA 731, ZONE SIERRA 733 ALFABRAVO ZONE BOUNDED BY THE FOLLOWING POINTS: 39-34.00N 017-00.00E 39-34.00N 017-38.00E 39-20.00N 017-38.00E 39-15.500N 017-25.000E 39-15.500N 017-11.000E 39-24.500N 017-11.000E WILL BE CARRIED OUT MILITARY ACTIVITIES WITH SUBMARINE OPS. ANCORAGE, FISHING AND OTHER UNDERWATER ACTIVITIES ARE PROHIBITED. (BROADCAST VALID 22 OCT 2026 1530 TO 22 OCT 2026 2330 ITALIAN TIME.)

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Analysis

No longer in force

Military submarine operations will be conducted in parts of the Northern Ionian Sea, including areas in the Gulf of Taranto and zones Sierra 731 and Sierra 733 AlfaBravo. Anchorage, fishing and other underwater activities are prohibited in the named zones during the stated periods. Activity periods were issued for 21 Oct to 22 Oct 2026 with the last stated end at 22 Oct 1400Z. This message is an update to Coastal Warning 500/26.

Anchorage, fishing and other underwater activities are prohibited in the named zones. Vessels should avoid these areas and navigate with caution.

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; Zone SIERRA 731; Zone SIERRA 733 ALFABRAVO
Validity: From 21 Oct 2026, 07:00 UTC
Until 22 Oct 2026, 14:00 UTCFROM 211200Z OCT 26 TO 221400Z OCT 26 ... FROM 210700Z OCT 26 TO 221400Z OCT 26 ... (BROADCAST VALID 22 OCT 2026 1530 TO 22 OCT 2026 2330 ITALIAN TIME.)
Activity periods: 21 Oct 2026, 12:00 UTC - 22 Oct 2026, 14:00 UTC (activity in polygon of points listed for Gulf of Taranto (first polygon) FROM 211200Z OCT 26 TO 221400Z OCT 26)
21 Oct 2026, 07:00 UTC - 22 Oct 2026, 14:00 UTC (activity in Zone SIERRA 731 and Zone SIERRA 733 ALFABRAVO and listed polygon FROM 210700Z OCT 26 TO 221400Z OCT 26)
Hazards: submarine operations, restricted anchorage, 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 22 Oct 2026, 15:48 UTC. It can be wrong: the official warning text is the authority.

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