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Komatsushima Lighthouse

Iso W 8s🇯🇵Eastern Shikoku, JPOperational

Location & Light Range

About Komatsushima Lighthouse

The Komatsushima Lighthouse stands at a focal height of 92 meters. It exhibits an isophase white light, meaning the on-time and off-time are equal, completing a full cycle every 8 seconds. This light has a geographic range extending 12 nautical miles. The structure is operational and located in Eastern Shikoku, Japan.

Light & Optic

Characteristic Signature
Iso W 8s
Flash Type
Isophase
Light Color
White
Flash Count
1 flash
Interval
8s
Raw Code
Iso.W. period 8s
Focal Height
92m
Geographic Range
12NM

References & Identifiers

Admiralty No.
M5561
NGA No.
7104

Location

City
Eastern Shikoku
Country
🇯🇵JP
Latitude
34.0186°
Longitude
134.5964°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Komatsushima Lighthouse at night?+
Komatsushima displays the characteristic Iso W 8s — 1 white flash every 8 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 Komatsushima Lighthouse guide vessels into?+
Komatsushima Lighthouse assists vessels approaching 5 nearby ports. The closest is Komatsushima at 1.4 NM to the SSE. Other ports served include Tokushima (2 NM NNW), Imagire (5.5 NM N), Tomioka, Tokushima (6.7 NM SE), Awazu (7.7 NM N). Mariners should consult the relevant chart for full approach and pilotage information.
Is Komatsushima Lighthouse still active and maintained?+
Yes, Komatsushima 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 Komatsushima Lighthouse?+
Komatsushima 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 Komatsushima Lighthouse?+
You can track vessels near Komatsushima 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.