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Jobal Sudo Lighthouse

Fl (6) White 15s🇰🇷Yeosu-si, KROperational

Location & Light Range

About Jobal Sudo Lighthouse

A cylindrical concrete tower, standing 14 meters tall, was built in 2003 to serve the Jobal Sudo. The structure's upper half is painted yellow, with the lower half in black. Its light has a focal height of 8 meters and emits one white flash every 15 seconds. This lighthouse is situated on a reef in the narrow passage between Jeokgeumdo and the northwestern tip of Nangdo. The passage is east of the bridge connecting Nangdo to Jeokgeumdo.

Why it matters: This lighthouse is important for safe passage through the narrow channel between Jeokgeumdo and Nangdo, a critical route for local maritime traffic.

Light & Optic

Characteristic Signature
Fl (6) White 15s
Flash Type
Flashing
Light Color
White
Flash Count
6 flashes
Interval
15s
Raw Code
Fl W 15s
Focal Height
8m
Geographic Range
9.7NM

Construction & History

Year Built
2003

References & Identifiers

Nearest Port
Yeosu(12.6 km)
Admiralty No.
M4305.36
NGA No.
17219.1

Tower & Structure

Tower Height
14m
Tower Shape
cylindrical
Tower Color
yellow and lower half black
Material
concrete

Structure: round cylindrical concrete tower, upper half painted yellow and lower half black

Location

City
Yeosu-si
Country
🇰🇷South Korea
Region
South Jeolla
Sea Region
a reef in the narrow passage between Jeokgeumdo and the northwestern tip of Nangdo, east of the bridge connecting Nangdo to Jeokgeumdo
Latitude
34.6183°
Longitude
127.5240°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Jobal Sudo Lighthouse at night?+
Jobal Sudo displays the characteristic Fl (6) White 15s — 6 white flashes every 15 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 white color may indicate a specific sector or warning zone.
Which ports and harbors does Jobal Sudo Lighthouse guide vessels into?+
Jobal Sudo Lighthouse assists vessels approaching 5 nearby ports. The closest is Yeosu at 10.3 NM to the NE. Other ports served include Gwangyang (18.7 NM NNE), Narodo (19.6 NM SW), Samil (19.6 NM NE), Nokdongsin (20.3 NM WSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Jobal Sudo Lighthouse still active and maintained?+
Yes, Jobal Sudo 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 Jobal Sudo Lighthouse?+
Jobal Sudo 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 Jobal Sudo Lighthouse?+
You can track vessels near Jobal Sudo 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.