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Akusekishima Lighthouse

Fl W 8s🇯🇵Nansei Shoto, JPOperational

Location & Light Range

About Akusekishima Lighthouse

This white tower stands 49 meters high on Akusekishima. Its light emits white and green flashes on a 16-second cycle. The navigational light is visible across an arc extending from 177 degrees to 027 degrees. The lighthouse provides a geographic range of 22 nautical miles. The focal height of the light is 158 meters.

Light & Optic

Characteristic Signature
Fl W 8s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
8s
Raw Code
Fl.W.G. period 16s
Focal Height
158m
Light Range
22NM (40.7 km)
Geographic Range
22NM

Location

City
Nansei Shoto
Country
🇯🇵JP
Latitude
29.4502°
Longitude
129.6145°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
49m
Tower Color
white

Structure: White tower; 49. Visible 177°-027°

References & Identifiers

Admiralty No.
M4782.95
NGA No.
13102
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Frequently Asked Questions

How far offshore can Akusekishima Lighthouse be seen?+
With a focal height of 158 meters and a nominal range of 22 nautical miles (approximately 40.7 km), Akusekishima is visible from well offshore under standard atmospheric conditions. Actual visibility depends on observer height, weather, and sea state. Lights of this range are typically used as landfall lights by vessels approaching from the open sea.
How do mariners identify Akusekishima Lighthouse at night?+
Akusekishima displays the characteristic Fl 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 Akusekishima Lighthouse guide vessels into?+
Akusekishima Lighthouse assists vessels approaching 5 nearby ports. The closest is Yasurahama at 1.2 NM to the WNW. Other ports served include Kiriishi (10.9 NM NNE), Haenohama (14.4 NM NNW), Higashinohama (14.8 NM NNW), Enohama (15 NM NNW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Akusekishima Lighthouse still active and maintained?+
Yes, Akusekishima 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 Akusekishima Lighthouse?+
You can track vessels near Akusekishima 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.