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Muroran Kō North Outer Breakwater Lighthouse

Occ G 8s🇯🇵Southern Hokkaidō, JPOperational

Location & Light Range

About Muroran Kō North Outer Breakwater Lighthouse

This cylindrical concrete tower stands 15 meters above sea level. It emits a flashing green light that occurs once every 8 seconds. The structure measures 14 meters in height, featuring a lantern and gallery at its apex. It is situated at the extremity of a detached breakwater. This breakwater marks the northern boundary of the channel leading into Muroran harbor.

Light & Optic

Characteristic Signature
Occ G 8s
Flash Type
Occ
Light Color
Green
Flash Count
1 flash
Interval
8s
Raw Code
F.Fl.G
Focal Height
15m

Location

City
Southern Hokkaidō
Country
🇯🇵JP
Latitude
42.3535°
Longitude
140.9174°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Shape
cylindrical
Material
concrete

References & Identifiers

Admiralty No.
M6746
NGA No.
0708
ARLHS No.
JPN-918
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Frequently Asked Questions

How do mariners identify Muroran Kō North Outer Breakwater Lighthouse at night?+
Muroran Kō North Outer Breakwater displays the characteristic Occ G 8s — 1 green flash every 8 seconds. Each lighthouse has a unique flash pattern published in the List of Lights, allowing mariners to positively identify it and distinguish it from other navigation aids in the area. The green color may indicate a specific sector or warning zone.
Which ports and harbors does Muroran Kō North Outer Breakwater Lighthouse guide vessels into?+
Muroran Kō North Outer Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Muroran at 2.4 NM to the ESE. Other ports served include Noboribetsu (12.5 NM ENE), Youra (16.1 NM NW), Shiraoi (20.4 NM ENE), Moriage (20.6 NM SW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Muroran Kō North Outer Breakwater Lighthouse still active and maintained?+
Yes, Muroran Kō North Outer Breakwater Lighthouse is currently operational. It is actively maintained and continues to emit its characteristic light signal for marine navigation. Most modern lighthouses are automated and monitored remotely by the national maritime authority.
How can I track vessels near Muroran Kō North Outer Breakwater Lighthouse?+
You can track vessels near Muroran Kō North Outer Breakwater Lighthouse in real time using MarineRadar. The platform shows live AIS positions of ships in the area, including vessel name, type, flag, speed, and course. Use the "Track Vessels Nearby" button on this page to open the live map centered on this lighthouse.