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Kominase Shima Lighthouse

Fl W 4s🇯🇵Yamaguchi, JPOperational

Location & Light Range

About Kominase Shima Lighthouse

The Kominase Shima Lighthouse is a 49-meter-tall round concrete tower painted white. Its light emits a white flash every 4 seconds. The focal height of the light source is 20 meters above sea level. This structure serves as a navigational aid on the coast.

Light & Optic

Characteristic Signature
Fl W 4s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
4s
Raw Code
Fl.W. period 4s
Focal Height
20m
Geographic Range
7NM

Location

City
Yamaguchi
Country
🇯🇵JP
Latitude
33.7773°
Longitude
132.3930°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
49m
Tower Shape
round
Tower Color
white
Material
concrete

Structure: White round concrete tower; 49

References & Identifiers

Admiralty No.
M5644
NGA No.
9148
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Frequently Asked Questions

How do mariners identify Kominase Shima Lighthouse at night?+
Kominase Shima displays the characteristic Fl W 4s — 1 white 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.
Which ports and harbors does Kominase Shima Lighthouse guide vessels into?+
Kominase Shima Lighthouse assists vessels approaching 5 nearby ports. The closest is Ihota at 10.5 NM to the NNE. Other ports served include Kuka (12.4 NM NNW), Masaki (15.9 NM ENE), Mitsuhama (15.9 NM ENE), Hirao (16.6 NM NW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Kominase Shima Lighthouse still active and maintained?+
Yes, Kominase Shima 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 Kominase Shima Lighthouse?+
Kominase Shima 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 Kominase Shima Lighthouse?+
You can track vessels near Kominase Shima 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.