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Umoseo Lighthouse

Fl R 6s🇰🇷Sacheon and Namhae Area, KROperational

Location & Light Range

About Umoseo Lighthouse

This red, round concrete tower stands 46 meters tall. Its focal plane is 10 meters above sea level. The light emits a single red flash every 6 seconds, visible for 7 nautical miles. The structure also includes an Automatic Identification System. It is operational and listed under NGA number 17056 and Admiralty number M4311.

Light & Optic

Characteristic Signature
Fl R 6s
Flash Type
Flashing
Light Color
Red
Flash Count
1 flash
Interval
6s
Raw Code
Fl.R. period 6s
Focal Height
10m
Geographic Range
7NM

Location

City
Sacheon and Namhae Area
Country
🇰🇷KR
Latitude
34.8860°
Longitude
127.8132°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
46m
Tower Shape
round
Tower Color
red
Material
concrete

Structure: Red round concrete tower; 46. AIS (MMSI No 994403109)

References & Identifiers

Admiralty No.
M4311
NGA No.
17056
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Frequently Asked Questions

How do mariners identify Umoseo Lighthouse at night?+
Umoseo displays the characteristic Fl R 6s — 1 red flash 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 red color may indicate a specific sector or warning zone.
Which ports and harbors does Umoseo Lighthouse guide vessels into?+
Umoseo Lighthouse assists vessels approaching 5 nearby ports. The closest is Samil at 1.9 NM to the SW. Other ports served include Gwangyang (4.7 NM W), Yeosu (11.2 NM SW), Samcheonpo/Sacheon (13.7 NM E), GOSEONG (25.4 NM E). Mariners should consult the relevant chart for full approach and pilotage information.
Is Umoseo Lighthouse still active and maintained?+
Yes, Umoseo 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 Umoseo Lighthouse?+
Umoseo 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 Umoseo Lighthouse?+
You can track vessels near Umoseo 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.