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Ariake Sea Lighthouses Lighthouse

Fl Green 3s🇯🇵Omuta, JPOperational

Location & Light Range

About Ariake Sea Lighthouses Lighthouse

This white concrete lighthouse stands 11 meters tall, with its focal plane at 14 meters. The structure consists of an 11-meter concrete post attached to a square, single-story concrete equipment room, all centered on a large, round stone pier. It emits a single green flash every three seconds and has a geographic range of 11.6 nautical miles. Operational since 1908, the lighthouse is situated at the end of a long groin on the north side of the entrance to Ōmuta city in the Ariake Sea. The nearest port, Miike, is located just 0.1 kilometers away.

Why it matters: The lighthouse marks the navigable channel at the entrance to Ōmuta city, guiding commercial and fishing vessels into the port. Its unique structure serves as a visual landmark for mariners.

Light & Optic

Characteristic Signature
Fl Green 3s
Flash Type
Flashing
Light Color
Green
Interval
3s
Raw Code
Fl G 3s
Focal Height
14m
Geographic Range
11.6NM

Construction & History

First Lit
1908

Significant events: Station established 1908

References & Identifiers

Nearest Port
Miike, Fukuoka(0.1 km)
Admiralty No.
M5175
NGA No.
11636

Tower & Structure

Tower Height
11m
Tower Color
White
Material
concrete

Structure: An 11m white concrete post, which forms the tower, is attached to a square 1-story concrete equipment room. The entire structure is centered on a large round stone pier.

Location

City
Omuta
Country
🇯🇵Japan
Region
Fukuoka Prefecture
Sea Region
Ariake Sea, at the end of a long groin on the north side of the entrance to Ōmuta city
Latitude
33.0045°
Longitude
130.3921°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Ariake Sea Lighthouses Lighthouse at night?+
Ariake Sea Lighthouses displays the characteristic Fl Green 3s. 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 green color may indicate a specific sector or warning zone.
Which ports and harbors does Ariake Sea Lighthouses Lighthouse guide vessels into?+
Ariake Sea Lighthouses Lighthouse assists vessels approaching 5 nearby ports. The closest is Miike, Fukuoka at 0.9 NM to the ENE. Other ports served include Nagasu, Kumamoto (5.5 NM SSE), Taira (9.1 NM SSW), Konagai (11 NM WSW), Shimabara (11.8 NM S). Mariners should consult the relevant chart for full approach and pilotage information.
Is Ariake Sea Lighthouses Lighthouse still active and maintained?+
Yes, Ariake Sea Lighthouses 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 Ariake Sea Lighthouses Lighthouse?+
Ariake Sea Lighthouses 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 Ariake Sea Lighthouses Lighthouse?+
You can track vessels near Ariake Sea Lighthouses 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.