🇺🇸 USA
East Pacific · Container Terminal
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None of the 110 vessels our AIS feed observed within 25 nm of Seattle between 29 Apr 2026 and 5 Aug 2026 broadcast an IMO number on the OFAC, EU, UK or UN sanctions list today. The feed saw only part of the traffic, so this does not mean no listed vessel called here. The feed has delivered no positions since 5 Aug 2026, so these figures will not change until it resumes.
Not listed
Seattle is not inside any Joint War Committee listed area (circular JWLA-035, 16 September 2026).
Source: Joint War Committee circular JWLA-035, 16 September 2026 (LMA/IUA), JWC Listed Areas for hull war, piracy, terrorism and related perils.
Between 29 Apr 2026 and 5 Aug 2026, ArcNautical's AIS feed observed 110 distinct vessels at Seattle, with Towing making up 27% of those with a ship-type code — in line with the East Pacific regional average of 22%. Seattle in USA sits along the western coast of the Americas, where commercial shipping operates against a backdrop of seismic, volcanic, and ENSO-driven weather hazards. The Pacific Ring of Fire generates significant seismic and volcanic activity along the entire coast; Chile and Peru experience major earthquakes with sufficient frequency that seismic risk is material for both port infrastructure and voyage planning. The Panama Canal — the key chokepoint connecting the eastern Pacific with the Caribbean and Atlantic — has faced drought-related transit restrictions that limit vessel draft and daily transit capacity, forcing some operators to route via the Strait of Magellan or Cape Horn. El Niño/La Niña cycles produce sustained shifts in storm tracks and sea states.
Routed sea distances from Seattle to the principal global hubs, computed by ArcNautical's routing engine — around land and through the canals a ship actually uses, not great-circle.
Our AIS feed observed 110 distinct vessels at Seattle between 29 Apr 2026 and 5 Aug 2026; 108 carry a confirmed AIS ship-type code. The most common categories:
The feed has delivered no positions since 5 Aug 2026, so these figures will not change until it resumes.
Seattle falls under the US Coast Guard. The US Coast Guard operates its own Port State Control programme rather than participating in a regional MoU. The USCG Port State Control Annual Report publishes detention statistics by flag and class society. ArcNautical evaluates per-vessel detention probability using flag performance (USCG QUALSHIP 21 status where applicable), vessel age, deficiency history, and ownership opacity.
The last 10 vessels our AIS feed recorded arriving between 29 Apr 2026 and 5 Aug 2026:
| Arrived | Vessel | Flag | Type |
|---|---|---|---|
| 2026-08-05 | RONZO | 🇺🇸 US | Diving Ops |
| 2026-08-04 | WSF PUYALLUP | 🇺🇸 US | Passenger |
| 2026-08-03 | TRIUMPH | 🇺🇸 US | Tug |
| 2026-08-02 | ORCA II | 🇺🇸 US | Passenger |
| 2026-08-02 | WSF CATHLAMET | 🇺🇸 US | Passenger |
| 2026-07-19 | LINDSEY FOSS | 🇺🇸 US | Tug |
| 2026-07-19 | GEORGIOS | 🇱🇷 LR | Cargo |
| 2026-07-15 | MSC ABY X | 🇱🇷 LR | Cargo |
| 2026-07-13 | GARTH FOSS | 🇺🇸 US | Towing |
The feed has delivered no positions since 5 Aug 2026, so these figures will not change until it resumes.
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