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Yokosuka East Breakwater North Head Lighthouse

Fl (2) Green 8s🇯🇵Yokosuka, JPOperational

Location & Light Range

About Yokosuka East Breakwater North Head Lighthouse

This concrete cylindrical lighthouse stands 8.5 meters tall and emits a green light with two flashes every 8 seconds. Its focal height reaches 10 meters, providing a geographic range of 10.4 nautical miles. The tower, painted white, features a round hourglass shape with a gallery. Located on the north end of a breakwater at the northwestern corner of Yokosuka harbor, it is situated 1.5 kilometers from the nearest port. The site is open to the public, but the tower itself is closed.

Why it matters: This lighthouse clearly marks the northern extremity of the breakwater, essential for safe navigation into Yokosuka harbor and preventing collisions with the man-made structure.

Light & Optic

Characteristic Signature
Fl (2) Green 8s
Flash Type
Flashing
Light Color
Green
Flash Count
2 flashes
Interval
8s
Raw Code
Fl G 8s
Focal Height
10m
Geographic Range
10.4NM

Location

City
Yokosuka
Country
🇯🇵Japan
Region
Kanagawa Prefecture
Sea Region
Located on the north end of a breakwater at the northwestern corner of Yokosuka harbor.
Latitude
35.3286°
Longitude
139.6631°

References & Identifiers

Nearest Port
Yokosuka(1.5 km)
Admiralty No.
M6376
NGA No.
5128

Tower & Structure

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

Structure: round hourglass-shaped concrete tower with gallery

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 Yokosuka East Breakwater North Head Lighthouse at night?+
Yokosuka East Breakwater North Head displays the characteristic Fl (2) Green 8s — 2 green 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 green color may indicate a specific sector or warning zone.
Which ports and harbors does Yokosuka East Breakwater North Head Lighthouse guide vessels into?+
Yokosuka East Breakwater North Head Lighthouse assists vessels approaching 5 nearby ports. The closest is Yokosuka at 2.6 NM to the SSE. Other ports served include Hayama (2.7 NM S), Oppama (2.9 NM SW), Zushi (4.8 NM SW), Yokohama (5 NM N). Mariners should consult the relevant chart for full approach and pilotage information.
Is Yokosuka East Breakwater North Head Lighthouse still active and maintained?+
Yes, Yokosuka East Breakwater North Head 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 Yokosuka East Breakwater North Head Lighthouse?+
Yokosuka East Breakwater North Head 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 Yokosuka East Breakwater North Head Lighthouse?+
You can track vessels near Yokosuka East Breakwater North Head 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.