Get the MarineRadar appSatellite AISSatellite live trackingTrack any shipLive alerts112,000+ ships trackedDownload free

Ushibuka Ōshima Lighthouse

Fl White 5s🇯🇵Amakusa, JPOperational

Location & Light Range

About Ushibuka Ōshima Lighthouse

This lighthouse stands on a forested island approximately 4 kilometers west of the Ushibuka west harbor entrance. The structure consists of a 10-meter white concrete post situated atop a square, one-story concrete equipment shelter. Its light emits a single white flash every five seconds. The focal height of the light is 69 meters, providing a geographic range of 21.3 nautical miles. The lighthouse is located within Kumamoto Prefecture on the island of Ōshima, near the city of Amakusa.

Why it matters: The Ushibuka Ōshima light serves as a key navigational reference for vessels approaching the Ushibuka west harbor. Its beam assists mariners in identifying the harbor entrance and navigating safely around the island's coastline.

Light & Optic

Characteristic Signature
Fl White 5s
Flash Type
Flashing
Light Color
White
Interval
5s
Raw Code
Fl W 5s
Focal Height
69m
Geographic Range
21.3NM

Location

City
Amakusa
Country
🇯🇵Japan
Region
Kumamoto Prefecture
Sea Region
Located atop a forested island about 4 km west of the Ushibuka west harbor entrance.
Latitude
32.1837°
Longitude
129.9678°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
10m
Tower Shape
post
Tower Color
white
Material
concrete

Structure: A 10m white concrete post rising from a square 1-story concrete equipment shelter.

References & Identifiers

Nearest Port
Ushibuka(3.5 km)
Admiralty No.
M5143.6
NGA No.
11340
Live tracking · 50,000+ mariners

Find Ushibuka Ōshima Lighthouse on the live nautical map

Plan voyages near Japan, see nearby vessels in real time, and explore 14,900+ navigation aids in the app.

Nautical mapNearby vesselsVoyage planning
Get the App

Frequently Asked Questions

How do mariners identify Ushibuka Ōshima Lighthouse at night?+
Ushibuka Ōshima displays the characteristic Fl White 5s. 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 white color may indicate a specific sector or warning zone.
Which ports and harbors does Ushibuka Ōshima Lighthouse guide vessels into?+
Ushibuka Ōshima Lighthouse assists vessels approaching 5 nearby ports. The closest is Ushibuka at 2.6 NM to the ENE. Other ports served include Oniki (3.9 NM NNE), Sasue (7.6 NM ESE), Fukami (7.8 NM ENE), Sakitsu (8.3 NM NNE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Ushibuka Ōshima Lighthouse still active and maintained?+
Yes, Ushibuka Ōshima 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 Ushibuka Ōshima Lighthouse?+
Ushibuka Ōshima 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 Ushibuka Ōshima Lighthouse?+
You can track vessels near Ushibuka Ōshima 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.