NAVAREA XI 26-0034
SÉCURITÉSeismic survey with multiple towed cables in Makassar Strait until further notice
No longer in forceIssued 27 Jan 2026, 09:00 UTCArchived 02 Nov 2026, 12:20 UTC
Warning text
Positions open on the mapSELAT MAKASAR.
SEISMIC SURVEY WORKS BY S/V RAMFORM
SOVEREIGN TOWING TWELVE CABLES, EACH
10050 METRE LONG. UNTIL FURTHER NOTICE.
AREA BOUNDED BY 00-10.30S 117-49.00E
00-10.30S 117-50.20E 00-52.50S 117-50.20E
01-30.60S 117-26.90E 01-33.70S 117-31.80E
01-44.20S 117-25.40E 01-50.30S 117-36.30E
01-55.30S 117-45.70E 01-23.40S 118-03.70E
01-20.80S 117-59.40E 01-16.50S 118-00.70E
01-16.50S 118-08.60E 01-33.60S 118-08.60E
01-33.60S 118-33.50E 00-47.90S 118-33.70E
00-48.00S 118-27.70E 00-14.00N 118-28.00E
00-14.00N 118-10.10E 00-31.90N 118-10.10E
00-32.00N 117-47.80E.
NAVAREA XI
Location map
Open in the full mapAnalysis
No longer in forceSeismic survey operations by S/V RAMFORM SOVEREIGN in the Makassar Strait. The vessel is towing twelve cables, each 10050 metre long. Operations affect the area bounded by the listed coordinates. Activity is stated to continue until further notice.
Keep clear of the defined area and navigate with caution; expect long towed seismic cables and support vessel traffic.
- Type
- Survey operations · severity moderate
- Feed
- Survey operationsAll warnings of this kind on the map, or as an API feed.
- Location
- Selat Makasar (Makassar Strait)
- Hazards
- seismic survey, towed cables
Vessels involved
- S/V RAMFORM SOVEREIGN · survey vessel
Coast stations for this area
- RCCMRSC Balik PapanIndonesia89 NM from the area
- RCCMRCC Ujung PandangIndonesia313 NM from the area
- DSCDSC Station BalikpapanMRSC Balik PapanIndonesiaMMSI 005250009VHF 20, MF 100, HFrange 100 NM90 NM from the area
- DSCDSC Station BalikpapanMRCC SurabayaIndonesiaMMSI 005250009VHF 20, MF 100, HFrange 100 NM90 NM from the area
- DSCDSC Station TarakanMRSC Balik PapanIndonesiaMMSI 005250017VHF 20, MF 100range 100 NM208 NM from the area
- DSCDSC Station BintuluMRCC Port KlangMalaysiaMMSI 005330012VHF 48range 48 NM349 NM from the area
- DSCDSC Station SandakanMRCC Port KlangMalaysiaMMSI 005330013MF 200range 200 NM351 NM from the area
Worked out automatically from the warning text on 27 Sept 2026, 15:30 UTC. It can be wrong: the official warning text is the authority.
Keywordsseismic survey
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