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Muroran Kō South Outer Breakwater Lighthouse

Occ R 8s🇯🇵Southern Hokkaidō, JPOperational

Location & Light Range

About Muroran Kō South Outer Breakwater Lighthouse

This red, octagonal concrete tower stands 15 meters above the water. Its light is red and flashes, with one occulting red flash every 8 seconds. The structure is located at the end of a detached breakwater. This breakwater sits on the south side of the main channel leading into Muroran. The tower is 14 meters tall.

Light & Optic

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

Location

City
Southern Hokkaidō
Country
🇯🇵JP
Latitude
42.3489°
Longitude
140.9162°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Shape
octagonal
Tower Color
red
Material
concrete

References & Identifiers

Admiralty No.
M6746.4
NGA No.
0704
ARLHS No.
JPN-920
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Frequently Asked Questions

How do mariners identify Muroran Kō South Outer Breakwater Lighthouse at night?+
Muroran Kō South Outer Breakwater displays the characteristic Occ R 8s — 1 red 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 red color may indicate a specific sector or warning zone.
Which ports and harbors does Muroran Kō South Outer Breakwater Lighthouse guide vessels into?+
Muroran Kō South Outer Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Muroran at 2.4 NM to the E. Other ports served include Noboribetsu (12.7 NM ENE), Youra (16.3 NM NW), Moriage (20.3 NM SW), Morinohama (20.3 NM SW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Muroran Kō South Outer Breakwater Lighthouse still active and maintained?+
Yes, Muroran Kō South 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 South Outer Breakwater Lighthouse?+
You can track vessels near Muroran Kō South 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.