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Jeodong North Breakwater Lighthouse

Fl R 5s🇰🇷Ulleungdo and Dokdo, KROperational

Location & Light Range

About Jeodong North Breakwater Lighthouse

This red, cylindrical concrete tower stands 16 meters above sea level. Its light emits a single green flash every 4 seconds. The structure measures 8.5 meters in height. It is situated at the end of Jeodong's north breakwater. The lighthouse is operational and provides a geographic range of 10 nautical miles.

Light & Optic

Characteristic Signature
Fl R 5s
Flash Type
Flashing
Light Color
Red
Flash Count
1 flash
Interval
5s
Raw Code
Fl.G. period 4s
Focal Height
16m
Geographic Range
10NM

Location

City
Ulleungdo and Dokdo
Country
🇰🇷KR
Latitude
37.4978°
Longitude
130.9141°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Shape
cylindrical
Tower Color
red
Material
concrete

References & Identifiers

Admiralty No.
M4445.7
NGA No.
16524
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Frequently Asked Questions

How do mariners identify Jeodong North Breakwater Lighthouse at night?+
Jeodong North Breakwater displays the characteristic Fl R 5s — 1 red 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 red color may indicate a specific sector or warning zone.
Which ports and harbors does Jeodong North Breakwater Lighthouse guide vessels into?+
Jeodong North Breakwater Lighthouse assists vessels approaching 2 nearby ports. The closest is Ulleung at 2 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 North Breakwater Lighthouse still active and maintained?+
Yes, Jeodong North 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 North Breakwater Lighthouse?+
Jeodong North 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 North Breakwater Lighthouse?+
You can track vessels near Jeodong North 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.