🇺🇸 USA
East Pacific · Container Terminal
In the last 180 days, ArcNautical recorded 105 vessel arrivals at Seattle, with Pleasure Craft accounting for 25% of port calls — higher than the East Pacific regional average of 6%. 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.
Across 105 distinct vessel arrivals, 103 carry a confirmed AIS ship-type code. The most common categories at Seattle:
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.
Last 10 vessel arrivals recorded by ArcNautical's AIS pipeline (last 90 days):
| Arrived | Vessel | Flag | Type |
|---|---|---|---|
| 2026-07-06 | PROVIDER | 🇺🇸 US | Fishing |
| 2026-07-06 | ATHENA | 🇺🇸 US | Tug |
| 2026-07-06 | TRIUMPH | 🇺🇸 US | Tug |
| 2026-07-05 | PROVIDER | 🇺🇸 US | Fishing |
| 2026-07-05 | WSF KALEETAN | 🇺🇸 US | Passenger |
| 2026-07-05 | NOORDAM | 🇳🇱 NL | Passenger |
| 2026-07-04 | SARAH | 🇺🇸 US | Tug |
| 2026-07-03 | WSF KALEETAN | 🇺🇸 US | Passenger |
| 2026-07-03 | JOHN QUIGG | 🇺🇸 US | Towing |
| 2026-07-03 | WSF SUQUAMISH | 🇺🇸 US | Passenger |
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