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Ishinomaki Kō West Detached Breakwater Lighthouse

Fl green 4s🇯🇵Ishinomaki, JPOperational

Location & Light Range

About Ishinomaki Kō West Detached Breakwater Lighthouse

Also known as: #Ishinomaki Kō West Detached Breakwater

This round, cylindrical concrete tower, standing 11 meters tall, was built in 1976 to mark the end of Ishinomaki's west detached breakwater. Its lantern and gallery provided a green light with a single flash characteristic. The lighthouse was situated at the end of the breakwater, approximately 1.2 kilometers from the port of Watanoha. It guided vessels navigating into the port of Ishinomaki. The original structure was destroyed by a tsunami.

Why it matters: The lighthouse was essential for maritime traffic entering Ishinomaki harbor, a significant fishing and industrial port.

Light & Optic

Characteristic Signature
Fl green 4s
Flash Type
Flashing
Light Color
green
Interval
4s
Raw Code
Fl.G
Focal Height
10m
Geographic Range
5NM

Construction & History

Year Built
1976

Significant events: Destroyed by the tsunami

References & Identifiers

Nearest Port
Watanoha(1.2 km)
Admiralty No.
M6533.6
NGA No.
4404

Tower & Structure

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

Structure: round cylindrical concrete tower with lantern and gallery

Location

City
Ishinomaki
Country
🇯🇵Japan
Region
Miyagi Prefecture
Sea Region
end of the west detached breakwater at Ishinomaki
Latitude
38.4059°
Longitude
141.3409°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Ishinomaki Kō West Detached Breakwater Lighthouse at night?+
Ishinomaki Kō West Detached Breakwater displays the characteristic Fl green 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 green color may indicate a specific sector or warning zone.
Which ports and harbors does Ishinomaki Kō West Detached Breakwater Lighthouse guide vessels into?+
Ishinomaki Kō West Detached Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Watanoha at 1.2 NM to the E. Other ports served include Ishinomaki (2.3 NM W), Oginohama (5.3 NM ESE), Akehama (5.8 NM ENE), Hamaguri (5.8 NM ENE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Ishinomaki Kō West Detached Breakwater Lighthouse still active and maintained?+
Yes, Ishinomaki Kō West Detached 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.
What shipping routes pass near Ishinomaki Kō West Detached Breakwater Lighthouse?+
Ishinomaki Kō West Detached Breakwater Lighthouse is located within the Japan / Korea shipping lane — a busy shipping corridor linking the major ports of Japan and South Korea. This makes it an important navigation reference for commercial shipping traffic in the region.
How can I track vessels near Ishinomaki Kō West Detached Breakwater Lighthouse?+
You can track vessels near Ishinomaki Kō West Detached 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.