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Sekinehama Kō West Breakwater Lighthouse

Fl Red 4s🇯🇵Mutsu, JPOperational

Location & Light Range

About Sekinehama Kō West Breakwater Lighthouse

A 9.5-meter red concrete cylindrical post marks the eastern end of Sekinehama's detached breakwater. A square, one-story concrete equipment shelter sits at its base. This lighthouse emits a red flash every four seconds. It extends navigational guidance to vessels operating in the Aomori Prefecture, near Mutsu city. The structure sits 3.6 kilometers from the nearest port, Ohata, and has a geographic range of 11.6 nautical miles.

Why it matters: The Sekinehama Kō West Breakwater lighthouse provides a clear warning of the detached breakwater's eastern end, preventing potential collisions with the submerged structure.

Light & Optic

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

Location

City
Mutsu
Country
🇯🇵Japan
Region
Aomori Prefecture
Sea Region
East end of the detached breakwater of Sekinehama.
Latitude
41.3701°
Longitude
141.2419°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
9.5m
Tower Shape
cylindrical
Tower Color
red
Material
concrete

Structure: A 9.5m red concrete cylindrical post with a square 1-story concrete equipment shelter at its base.

References & Identifiers

Nearest Port
Ohata(3.6 km)
Admiralty No.
M6631.5
NGA No.
3846
USCG No.
1554.2
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Frequently Asked Questions

How do mariners identify Sekinehama Kō West Breakwater Lighthouse at night?+
Sekinehama Kō West Breakwater displays the characteristic Fl 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 Sekinehama Kō West Breakwater Lighthouse guide vessels into?+
Sekinehama Kō West Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Ohata at 3.9 NM to the NW. Other ports served include Ominato (7.3 NM SSW), Shiriyazaki (9 NM ENE), Kawauchi (15.4 NM SW), Sai, Aomori (17.6 NM WNW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Sekinehama Kō West Breakwater Lighthouse still active and maintained?+
Yes, Sekinehama Kō West 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 Sekinehama Kō West Breakwater Lighthouse?+
Sekinehama Kō West 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 Sekinehama Kō West Breakwater Lighthouse?+
You can track vessels near Sekinehama Kō West 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.