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World Lights - Japan: - Modern Lighthouses Lighthouse

Fl (2) Green 6s🇯🇵Yakumo, JPOperational

Location & Light Range

About World Lights - Japan: - Modern Lighthouses Lighthouse

A 9-meter tall concrete lighthouse, with its light at a focal height of 12 meters. The structure consists of a square concrete tower that ascends from a 1-story concrete equipment building. It displays a green flashing light, characterized as Fl G 6s, and has a geographic range of 11 nautical miles. Situated at the termination of the east breakwater for Yakumo port in Hokkaido Prefecture, the lighthouse was moved because of breakwater lengthening.

Why it matters: This structure serves as a marker for the extended east breakwater of Yakumo port, aiding vessels entering and leaving the harbor.

Light & Optic

Characteristic Signature
Fl (2) Green 6s
Flash Type
Flashing
Light Color
Green
Flash Count
2 flashes
Interval
6s
Raw Code
Fl G 6s
Focal Height
12m
Geographic Range
11NM

Construction & History

Significant events: Relocated due to breakwater extension

References & Identifiers

Nearest Port
Motomachi(9.5 km)
Admiralty No.
M6741.3
NGA No.
824
ARLHS No.
JPN-1014

Tower & Structure

Tower Height
9m
Tower Shape
square
Tower Color
white
Material
concrete

Structure: concrete post rising from a square 1-story concrete equipment building

Location

City
Yakumo
Country
🇯🇵Japan
Region
Hokkaido Prefecture
Sea Region
Uchiura Bay, marking the end of the east breakwater of Yakumo port.
Latitude
42.1222°
Longitude
140.0761°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify World Lights - Japan: - Modern Lighthouses Lighthouse at night?+
World Lights - Japan: - Modern Lighthouses displays the characteristic Fl (2) Green 6s — 2 green flashes every 6 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 World Lights - Japan: - Modern Lighthouses Lighthouse guide vessels into?+
World Lights - Japan: - Modern Lighthouses Lighthouse assists vessels approaching 5 nearby ports. The closest is Motomachi at 9.4 NM to the SSE. Other ports served include Esashi/Hiyama (15.4 NM S), Setana (22.1 NM NNW), Moriage (22.6 NM E), Morinohama (22.6 NM E). Mariners should consult the relevant chart for full approach and pilotage information.
Is World Lights - Japan: - Modern Lighthouses Lighthouse still active and maintained?+
Yes, World Lights - Japan: - Modern Lighthouses 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.
How can I track vessels near World Lights - Japan: - Modern Lighthouses Lighthouse?+
You can track vessels near World Lights - Japan: - Modern Lighthouses 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.