🇮🇩 Indonesia
Southeast Asia · General Cargo Port
In the last 180 days, ArcNautical recorded 11 vessel arrivals at Semarang, with Cargo accounting for 64% of port calls — higher than the Southeast Asia regional average of 49%. 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.
Across 11 distinct vessel arrivals, 11 carry a confirmed AIS ship-type code. The most common categories at Semarang:
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 5,389 distinct vessel detentions (sourced from OpenSanctions, as of 2026-07-05). 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 |
|---|---|---|---|
| 2026-07-01 | TRANSKO JALAK | 🇮🇩 ID | Tug |
| 2026-07-01 | BRICKELL | 🇲🇭 MH | Cargo |
| 2026-06-30 | SKY WIND | 🇵🇦 PA | Cargo |
| 2026-06-30 | TRANSKO JALAK | 🇮🇩 ID | Tug |
| 2026-06-30 | SKY WIND | 🇵🇦 PA | Cargo |
| 2026-06-29 | SKY WIND | 🇵🇦 PA | Cargo |
| 2026-06-29 | TRANSKO JALAK | 🇮🇩 ID | Tug |
| 2026-06-29 | MSC VAIGA III | 🇱🇷 LR | Cargo |
| 2026-06-28 | SKY WIND | 🇵🇦 PA | Cargo |
| 2026-06-26 | TRANSKO JALAK | 🇮🇩 ID | Tug |
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