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Sodu Am Lighthouse

Fl R 4s🇰🇷Incheon Area, KROperational

Location & Light Range

About Sodu Am Lighthouse

This lighthouse is a yellow, four-sided structure built from fiberglass-reinforced plastic. It stands 11 meters tall, with its light positioned at a focal height of 16 meters above the water. The light emits a single yellow flash every 8 seconds. Its geographic range extends for 9 nautical miles. The structure is located in the Incheon Area.

Light & Optic

Characteristic Signature
Fl R 4s
Flash Type
Flashing
Light Color
Red
Flash Count
1 flash
Interval
4s
Raw Code
Fl.Y. period 8s
Focal Height
16m
Geographic Range
9NM

Location

City
Incheon Area
Country
🇰🇷KR
Latitude
37.4820°
Longitude
126.5965°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
11m
Tower Color
yellow
Material
fiberglass

Structure: Yellow four-sided glass reinforced plastic (GRP) fiberglass structure; 11

References & Identifiers

Admiralty No.
M4175.4
NGA No.
17971
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Frequently Asked Questions

How do mariners identify Sodu Am Lighthouse at night?+
Sodu Am displays the characteristic Fl R 4s — 1 red flash every 4 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 Sodu Am Lighthouse guide vessels into?+
Sodu Am Lighthouse assists vessels approaching 5 nearby ports. The closest is Gyeongin at 3.1 NM to the N. Other ports served include Incheon (5.6 NM SW), BUCHEON (7.4 NM E), Seoul (16.2 NM E), DANGJIN (25.5 NM S). Mariners should consult the relevant chart for full approach and pilotage information.
Is Sodu Am Lighthouse still active and maintained?+
Yes, Sodu Am 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 Sodu Am Lighthouse?+
You can track vessels near Sodu Am 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.