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Jeodong South Breakwater Lighthouse

Fl G 5s🇰🇷Ulleungdo and Dokdo, KROperational

Location & Light Range

About Jeodong South Breakwater Lighthouse

This navigational aid features a round, white metal tower standing 7 meters high. Its focal plane is positioned 16 meters above sea level. The structure emits a single green flash every 5 seconds. The light is visible for a distance of 15 nautical miles.

Light & Optic

Characteristic Signature
Fl G 5s
Flash Type
Flashing
Light Color
Green
Flash Count
1 flash
Interval
5s
Raw Code
Fl.G. period 5s
Focal Height
16m
Geographic Range
15NM

Location

City
Ulleungdo and Dokdo
Country
🇰🇷KR
Latitude
37.4966°
Longitude
130.9133°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
7m
Tower Shape
round
Tower Color
white
Material
metal

Structure: Metal pedestal; 7

References & Identifiers

Admiralty No.
M4445.8
NGA No.
16528
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Frequently Asked Questions

How do mariners identify Jeodong South Breakwater Lighthouse at night?+
Jeodong South Breakwater displays the characteristic Fl G 5s — 1 green flash every 5 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 Jeodong South Breakwater Lighthouse guide vessels into?+
Jeodong South Breakwater Lighthouse assists vessels approaching 2 nearby ports. The closest is Ulleung at 1.9 NM to the SSW. Other ports served include Dokdo (47.4 NM ESE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Jeodong South Breakwater Lighthouse still active and maintained?+
Yes, Jeodong South 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 Jeodong South Breakwater Lighthouse?+
Jeodong South 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 Jeodong South Breakwater Lighthouse?+
You can track vessels near Jeodong South 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.