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Senzaki Kō Outer No. 2 Breakwater Lighthouse

F (2) Red 8s🇯🇵Nagato, JPOperational

Location & Light Range

About Senzaki Kō Outer No. 2 Breakwater Lighthouse

This red concrete lighthouse stands as a 9.5-meter cylindrical post atop a 1-story concrete equipment shelter. It is located at the south end of Senzaki harbor's southern detached breakwater in Nagato. The light emits two red flashes every 8 seconds and has a geographic range of 11 nautical miles. The site is accessible, but the tower itself is closed to the public. It serves as an active aid to navigation within Yamaguchi Prefecture.

Why it matters: This lighthouse marks the southern end of the detached breakwater, guiding vessels into Senzaki harbor and preventing collisions with the structure.

Light & Optic

Characteristic Signature
F (2) Red 8s
Flash Type
Fixed
Light Color
Red
Flash Count
2 flashes
Interval
8s
Raw Code
F.Fl(2) R 8s
Focal Height
12m
Geographic Range
11NM

Location

City
Nagato
Country
🇯🇵Japan
Region
Yamaguchi Prefecture
Sea Region
Senzaki harbor, at the south end of the southern detached breakwater
Latitude
34.3936°
Longitude
131.2043°

References & Identifiers

Nearest Port
Senzaki(0.6 km)
Admiralty No.
M7381.9
NGA No.
1660
ARLHS No.
JPN-1654

Tower & Structure

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

Structure: A 9.5m red concrete post attached to a square 1-story concrete equipment shelter.

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Senzaki Kō Outer No. 2 Breakwater Lighthouse at night?+
Senzaki Kō Outer No. 2 Breakwater displays the characteristic F (2) Red 8s — 2 red flashes 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 Senzaki Kō Outer No. 2 Breakwater Lighthouse guide vessels into?+
Senzaki Kō Outer No. 2 Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Senzaki at 0.6 NM to the SE. Other ports served include Fukawa (1.2 NM WSW), Hagi (10.6 NM ENE), Awano (11.8 NM W), Kottoi (16 NM WSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Senzaki Kō Outer No. 2 Breakwater Lighthouse still active and maintained?+
Yes, Senzaki Kō Outer No. 2 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 Senzaki Kō Outer No. 2 Breakwater Lighthouse?+
Senzaki Kō Outer No. 2 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 Senzaki Kō Outer No. 2 Breakwater Lighthouse?+
You can track vessels near Senzaki Kō Outer No. 2 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.