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Masuura Kō Lighthouse

Iso Red 4s🇯🇵Abashiri, JPOperational

Location & Light Range

About Masuura Kō Lighthouse

Masuura Kō lighthouse is a red, cylindrical concrete tower built in 1990. It stands 11 meters tall, with its light positioned 14 meters above sea level. The lighthouse is situated on the north breakwater that shelters the harbor of Masuura, a fishing port located on the south side of Abashiri. This active light emits an isophase red signal every 4 seconds, visible for 11.6 nautical miles. The structure includes a lantern and gallery, and the tower is painted red.

Why it matters: This lighthouse is indispensable for the local fishing fleet, guiding them safely through the breakwater into the harbor. Its distinctive red light helps mariners pinpoint the narrow entrance to Masuura, directly supporting the livelihoods of the community.

Light & Optic

Characteristic Signature
Iso Red 4s
Flash Type
Isophase
Light Color
Red
Interval
4s
Raw Code
Iso R 4s
Focal Height
14m
Geographic Range
11.6NM

Construction & History

Year Built
1990

References & Identifiers

Nearest Port
Abashiri(1.2 km)

Tower & Structure

Tower Height
11m
Tower Shape
cylindrical
Tower Color
red
Material
concrete

Structure: round cylindrical concrete tower with lantern and gallery, painted red

Location

City
Abashiri
Country
🇯🇵Japan
Region
Hokkaido Prefecture
Sea Region
North breakwater sheltering the harbor of Masuura, a small fishing port on the south side of Abashiri.
Latitude
43.9927°
Longitude
144.2959°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Masuura Kō Lighthouse at night?+
Masuura Kō displays the characteristic Iso Red 4s. 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 Masuura Kō Lighthouse guide vessels into?+
Masuura Kō Lighthouse assists vessels approaching 3 nearby ports. The closest is Abashiri at 1.3 NM to the NNW. Other ports served include Tokoro (11.6 NM NW), Shibetsu (41.4 NM ESE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Masuura Kō Lighthouse still active and maintained?+
Yes, Masuura Kō 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 Masuura Kō Lighthouse?+
You can track vessels near Masuura Kō 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.