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Senboku East Breakwater Lighthouse

Fl Green 5s🇯🇵Izumiotsu, JPOperational

Location & Light Range

About Senboku East Breakwater Lighthouse

This lighthouse stands at the easternmost point of the Senboku breakwater, guiding vessels toward the port of Senboku. The structure is an 8.5-meter white concrete post that rises from a square concrete equipment room. Its operational light displays a green flash every 5 seconds, visible for 11 nautical miles. The lighthouse is situated 0.8 kilometers from the nearest port facilities at Senboku. Its location marks the boundary for maritime traffic entering this busy harbor.

Why it matters: This light is essential for vessels entering Senboku port, warning them of the breakwater's end and helping to prevent collisions.

Light & Optic

Characteristic Signature
Fl Green 5s
Flash Type
Flashing
Light Color
Green
Interval
5s
Raw Code
Fl G 5s
Focal Height
12m
Geographic Range
11NM

Location

City
Izumiotsu
Country
🇯🇵Japan
Region
Osaka Prefecture
Sea Region
end of the east breakwater of Senboku
Latitude
34.5243°
Longitude
135.3872°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
8.5m
Tower Shape
post
Tower Color
white
Material
concrete

Structure: An 8.5m white concrete post rising from a square concrete equipment room.

References & Identifiers

Nearest Port
Senboku(0.8 km)
Admiralty No.
M5953
NGA No.
7280
USCG No.
JCG-3532
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Frequently Asked Questions

How do mariners identify Senboku East Breakwater Lighthouse at night?+
Senboku East Breakwater displays the characteristic Fl Green 5s. 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 Senboku East Breakwater Lighthouse guide vessels into?+
Senboku East Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Sakai at 1.4 NM to the ENE. Other ports served include Sakaisenboku (2.8 NM NE), Hannan (3.9 NM SSW), KAIZUKA (4.4 NM SSW), Osaka, Tottori (7.9 NM NNE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Senboku East Breakwater Lighthouse still active and maintained?+
Yes, Senboku East 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 Senboku East Breakwater Lighthouse?+
Senboku East 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 Senboku East Breakwater Lighthouse?+
You can track vessels near Senboku East 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.