🇮🇩 Indonesia
Southeast Asia · General Cargo Port
Voyages from Semarang in Indonesia navigate the world's busiest shipping lanes, anchored by the Strait of Malacca — a 550-mile corridor through which roughly 100,000 vessels transit annually. The Malacca and Singapore Straits remain a persistent piracy hotspot, with ReCAAP recording dozens of incidents per year; most are low-level opportunistic theft at anchor, but the geographic concentration demands attention in any voyage risk model. Waters off eastern Sabah and the Sulu Sea present a more severe kidnap-for-ransom threat. PSC inspection regimes vary substantially across ASEAN members, and the Tokyo MOU detention data identifies which flags and vessel types face elevated scrutiny in the region.
Limited port-call data — fewer than 10 distinct vessels observed at Semarang in the last 180 days. ArcNautical does not publish a vessel-type breakdown for low-traffic ports to avoid statistically misleading percentages.
Semarang falls under the Tokyo MoU. The Tokyo Memorandum of Understanding (Asia-Pacific) maintains the most active publicly-available regional PSC programme. Across the last 24 months, the Tokyo MoU detention dataset records 5,331 distinct vessel detentions (sourced from OpenSanctions, as of 2026-06-14). Vessel-level detention probability is computed by ArcNautical using flag performance, vessel age, deficiency history, and ownership opacity.
Last 10 vessel arrivals recorded by ArcNautical's AIS pipeline (last 90 days):
| Arrived | Vessel | Flag | Type |
|---|---|---|---|
| 2026-05-29 | ERMIONE | 🇸🇬 SG | Cargo |
| 2026-05-22 | ERMIONE | 🇸🇬 SG | Cargo |
| 2026-05-20 | MV.PUSRI INDONESIA | 🇮🇩 ID | Cargo |
| 2026-05-19 | MT.SMB-II | 🇮🇩 ID | Tanker |
| 2026-05-19 | Unknown vessel | Unknown | |
| 2026-05-19 | Unknown vessel | 🇮🇩 ID | Tug |
| 2026-05-18 | MERATUS CIWANDAN | 🇮🇩 ID | Cargo |
| 2026-05-18 | Unknown vessel | Unknown | |
| 2026-05-09 | BRICKELL | 🇲🇭 MH | Cargo |
| 2026-05-09 | Unknown vessel | 🇮🇩 ID | Tug |
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