Master's MateSafety Initiative Network
The Master's Mate Safety Initiative Network (MMSIn) — like AAA for the ocean, but free & community-driven. Cruisers keeping each other safe: anchor-drag & distress alerts, a verified captains directory, and a watch network that has your back.
Tug
SURUGA MARU
Tug · last seen 35°N 140°E · Jun 2026 · MMSI 431004067 · Call sign JD3442
Not yet on Master's MateType
Tug
Length
38 m
Beam
9 m
Draft
3 m
Call sign
JD3442
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
4
SURUGA MARU is a harbour tug, 38 metres long. She has a 9-metre beam and a draft of 3 m. Find her under MMSI 431004067, call sign JD3442. Put SURUGA MARU on the Master's Mate Safety Initiative Network — free to claim, with a whole fleet watching out for her.
Free forever · No credit card · for working boats
Built for boats that work — like SURUGA MARU.
Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.
Rig her out — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Last known position · Jun 15, 2026
Position
35.4077° N, 139.6560° E
Working the Sea of Japan? You're never out there alone.
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Joining the Safety Initiative Network doesn't just put SURUGA MARU on the map. It hands you the full bridge:
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Anchor Watch
GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim SURUGA MARU and switch it all on
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About SURUGA MARU
What kind of vessel is SURUGA MARU?
SURUGA MARU is a Tug.
Where was SURUGA MARU last seen?
SURUGA MARU was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is SURUGA MARU's MMSI?
SURUGA MARU's MMSI is 431004067. Call sign JD3442.
How big is SURUGA MARU?
SURUGA MARU is about 38 m long, 9 m on the beam, drawing 3 m.
Is SURUGA MARU on the Master's Mate Safety Initiative Network?
Not yet. If SURUGA MARU is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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