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Yoron Ko Lighthouse

Fl (2) W 7s🇯🇵Nansei Shoto, JPOperational

Location & Light Range

About Yoron Ko Lighthouse

This lighthouse is a green, cylindrical fiberglass tower situated on a pile in the Nansei Shoto region. It features a topmark and stands 20 meters above sea level. The operational light displays two white flashes every 7 seconds and has a geographic range of 12 nautical miles. The structure is made of green glass reinforced plastic.

Light & Optic

Characteristic Signature
Fl (2) W 7s
Flash Type
Flashing
Light Color
White
Flash Count
2 flashes
Interval
7s
Raw Code
Fl.(2)W. period 7s
Focal Height
20m
Light Range
12NM (22.2 km)
Geographic Range
12NM

Location

City
Nansei Shoto
Country
🇯🇵JP
Latitude
27.0506°
Longitude
128.3987°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Shape
cylindrical
Tower Color
green
Material
fiberglass

Structure: PORT (IALA B) Green glass reinforced plastic(grp) fiberglass tower, topmark, on pile

References & Identifiers

Admiralty No.
M4764
NGA No.
13248
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Frequently Asked Questions

How far offshore can Yoron Ko Lighthouse be seen?+
With a focal height of 20 meters and a nominal range of 12 nautical miles (approximately 22.2 km), Yoron Ko is visible from well offshore under standard atmospheric conditions. Actual visibility depends on observer height, weather, and sea state. This range makes it a significant coastal navigation aid for vessels transiting the area.
How do mariners identify Yoron Ko Lighthouse at night?+
Yoron Ko displays the characteristic Fl (2) W 7s — 2 white flashes every 7 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.
Which ports and harbors does Yoron Ko Lighthouse guide vessels into?+
Yoron Ko Lighthouse assists vessels approaching 5 nearby ports. The closest is China at 19.1 NM to the NNE. Other ports served include Kada (25 NM WSW), Nakada (25.1 NM WSW), Uchihana (25.1 NM WSW), Wadomari (25.1 NM NE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Yoron Ko Lighthouse still active and maintained?+
Yes, Yoron Ko 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 Yoron Ko Lighthouse?+
You can track vessels near Yoron Ko 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.