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Ikema Shima Lighthouse

Fl W 12s🇯🇵Okinawa, JPOperational

Location & Light Range

About Ikema Shima Lighthouse

Also known as: Ikema-Lighthouse

The Ikema Shima lighthouse, established in 1940, stands as a 23-meter white tower. Its focal height reaches 42 meters above sea level. This navigational aid emits a single white flash every 12 seconds. The structure itself is described as a white tower, 75 units in height, located in Okinawa.

Light & Optic

Characteristic Signature
Fl W 12s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
12s
Raw Code
Fl.W. period 12s
Focal Height
42m
Geographic Range
18NM

Construction & History

Year Built
1940

References & Identifiers

Admiralty No.
M4738
NGA No.
13504
Wikidata
Q11135855 →
OpenStreetMap
View on OSM →

Tower & Structure

Tower Height
23m
Tower Color
white

Structure: White tower; 75

Location

City
Okinawa
Country
🇯🇵JP
Latitude
24.9364°
Longitude
125.2356°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Ikema Shima Lighthouse at night?+
Ikema Shima displays the characteristic Fl W 12s — 1 white flash every 12 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 Ikema Shima Lighthouse guide vessels into?+
Ikema Shima Lighthouse assists vessels approaching 4 nearby ports. The closest is Hirara at 8.6 NM to the SSE. Other ports served include Nagayama (8.6 NM SSE), Maehama (8.6 NM SSE), Miyakojima (9.8 NM SSE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Ikema Shima Lighthouse still active and maintained?+
Yes, Ikema 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.
How can I track vessels near Ikema Shima Lighthouse?+
You can track vessels near Ikema 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.