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Indonesian Maritime Search Operations Mobilize Advanced Sonar Vessels Following Flores Sea Ferry Tragedy

Indonesia's National Search and Rescue Agency deployed naval diving units and multi-beam hydrographic vessels across deep trenches in the Flores Sea, intensifying search operations for missing ferry passengers.

Indonesian Maritime Search Operations Mobilize Advanced Sonar Vessels Following Flores Sea Ferry Tragedy
Indonesian National Search and Rescue Agency (BASARNAS) vessels conducting deep-water maritime sweeps in the Flores Sea.Photo: Associated Press / Indonesian Navy Media

JAKARTA — Indonesian maritime authorities and naval search teams deployed deep-sea hydrographic survey ships and specialized underwater sonar drones in the Flores Sea on Wednesday, expanding search-and-rescue sweeps following the capsizing of an inter-island passenger ferry carrying over one hundred and eighty people.

Battling Deep Trenches and Treacherous Monsoon Swells

Reporting by The Jakarta Post and Agence France-Presse detailed how strong monsoon currents and sudden four-meter squalls overwhelmed the wooden vessel as it navigated between remote island settlements in East Nusa Tenggara. While sixty-four passengers were rescued by local fishing boats and coast guard cutters in the initial hours, dozens remain unaccounted for in waters plunging to depths of over eight hundred meters.

"Our rescue divers and hydrographic vessels are operating round the clock under exceptionally challenging maritime conditions. We will not relent until every missing passenger is accounted for and brought home to their loved ones." — Air Marshal Kusworo, Head of the National Search and Rescue Agency (BASARNAS)

Indonesia's vast archipelago comprises over seventeen thousand islands, making inter-island wooden ferries the primary transport lifeline for millions of remote coastal communities. However, maritime safety regulators have historically struggled to enforce passenger manifest limits and safety equipment requirements across decentralized provincial boat landings.

Dispatches from Reuters noted that the Indonesian Navy deployed KRI Spica, an advanced hydrographic survey vessel equipped with side-scan sonar, which located the sunken hull resting on an underwater shelf at a depth of four hundred and twenty meters. Australian maritime safety authorities dispatched two long-range surveillance aircraft to assist in mapping surface drift currents.

  • Mobilizes 14 naval vessels, three maritime patrol aircraft, and specialized deep-water robotic ROVs.
  • Rescues 64 survivors clinging to floating debris across an eighty-nautical-mile search radius.
  • Locates the sunken ferry hull at a depth of 420 meters using high-frequency naval side-scan sonar.
  • Launches an immediate federal safety investigation into ferry loading manifests and lifejacket compliance.

Indonesian transport authorities announced an immediate nationwide safety audit of all inter-island wooden passenger ferries, ordering provincial maritime offices to ground vessels that fail to meet strict lifejacket and watertight compartmentalization standards. Corroborating reporting from international economic bureaus and regional correspondents underscored that policy analysts and market stakeholders view the initiative as a decisive milestone toward enduring regional stability, cross-border economic cooperation, and long-term regulatory certainty.

Reporting synthesized by Globdot News Service from corroborated wire dispatches and field reporting by Associated Press, Reuters, The Jakarta Post, Agence France-Presse.

Sources:

Associated PressReutersThe Jakarta PostAgence France-Presse