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Sudo Southwest Lighthouse

Fl Green 5s🇰🇷Imja, KROperational

Location & Light Range

About Sudo Southwest Lighthouse

The Sudo Southwest lighthouse is a 15-meter cylindrical concrete tower, painted green, and first lit in 2006. It guides vessels through the channel between Sudo and Imjado islands, located off the southwestern tip of Sudo. The focal height of its green light is 10 meters, displaying a single green flash every 5 seconds. This aid to navigation has a geographic range of 10.4 nautical miles. The lighthouse structure was relocated around 2020, adapting to changes in the waterway.

Why it matters: The lighthouse is important for safely navigating the channel between Sudo and Imjado, a passage that likely sees regular maritime traffic.

Light & Optic

Characteristic Signature
Fl Green 5s
Flash Type
Flashing
Light Color
Green
Interval
5s
Raw Code
Fl G 5s
Focal Height
10m
Geographic Range
10.4NM

Construction & History

Year Built
2006

Significant events: relocated around 2020

References & Identifiers

Nearest Port
Mokpo(21.2 km)
Admiralty No.
M4210.37.

Tower & Structure

Tower Height
15m
Tower Shape
cylindrical
Tower Color
green
Material
concrete

Structure: round green concrete tower

Location

City
Imja
Country
🇰🇷South Korea
Region
South Jeolla
Sea Region
channel between Sudo and Imjado, off the southwestern tip of Sudo island
Latitude
35.0829°
Longitude
126.1290°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Sudo Southwest Lighthouse at night?+
Sudo Southwest displays the characteristic Fl Green 5s. 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 Sudo Southwest Lighthouse guide vessels into?+
Sudo Southwest Lighthouse assists vessels approaching 5 nearby ports. The closest is Songgong at 15.6 NM to the SSE. Other ports served include Mokpo (22.1 NM SSE), Daebul/Yeongam-gun (25 NM SE), Sangwangdeungdo (34.1 NM N), Daeheuksando (41.8 NM SW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Sudo Southwest Lighthouse still active and maintained?+
Yes, Sudo Southwest 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 Sudo Southwest Lighthouse?+
You can track vessels near Sudo Southwest 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.