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Muroran Kō South Auxiliary Breakwater Lighthouse

Fl R 5s🇯🇵Southern Hokkaidō, JPOperational

Location & Light Range

About Muroran Kō South Auxiliary Breakwater Lighthouse

This cylindrical concrete lighthouse stands on a breakwater on the south side of Muroran, Hokkaidō. The structure, approximately 11 meters in height, features a lantern and gallery. It emits a continuous red light that includes a single bright flash every 5 seconds. The entire lighthouse structure is painted red. Its operational status confirms it is an active aid to navigation.

Light & Optic

Characteristic Signature
Fl R 5s
Flash Type
Flashing
Light Color
Red
Flash Count
1 flash
Interval
5s
Raw Code
F.Fl.R
Focal Height
13m

Location

City
Southern Hokkaidō
Country
🇯🇵JP
Latitude
42.3501°
Longitude
140.9283°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Shape
cylindrical
Material
concrete

References & Identifiers

Admiralty No.
M6747
NGA No.
0712
ARLHS No.
JPN-379
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Frequently Asked Questions

How do mariners identify Muroran Kō South Auxiliary Breakwater Lighthouse at night?+
Muroran Kō South Auxiliary Breakwater displays the characteristic Fl R 5s — 1 red flash every 5 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 red color may indicate a specific sector or warning zone.
Which ports and harbors does Muroran Kō South Auxiliary Breakwater Lighthouse guide vessels into?+
Muroran Kō South Auxiliary Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Muroran at 1.9 NM to the ESE. Other ports served include Noboribetsu (12.2 NM ENE), Youra (16.6 NM NW), Shiraoi (20.1 NM ENE), Moriage (20.8 NM SW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Muroran Kō South Auxiliary Breakwater Lighthouse still active and maintained?+
Yes, Muroran Kō South Auxiliary 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 South Auxiliary Breakwater Lighthouse?+
You can track vessels near Muroran Kō South Auxiliary 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.