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Ōita Kō East Breakwater Lighthouse

Fl Green 3s🇯🇵Oita, JPOperational

Location & Light Range

About Ōita Kō East Breakwater Lighthouse

This lighthouse stands at the extremity of the eastern breakwater for the newer harbor at Otozu, located on the west side of Ōita city. The structure is a round, strongly conical concrete tower, 10 meters high, painted white. It supports a lantern and gallery, with its light positioned 18 meters above sea level. The lighthouse emits a green flash every three seconds, visible for 12.7 nautical miles. It was built as part of the development of this modern maritime infrastructure to serve the prefectural capital's shipping needs.

Why it matters: The lighthouse's green flash clearly marks the eastern breakwater, which is essential for the safe navigation of vessels entering or leaving the Otozu harbor and serving Ōita.

Light & Optic

Characteristic Signature
Fl Green 3s
Flash Type
Flashing
Light Color
Green
Interval
3s
Raw Code
Fl G 3s
Focal Height
18m
Geographic Range
12.7NM

Location

City
Oita
Country
🇯🇵Japan
Region
Oita Prefecture
Sea Region
End of the east breakwater of a newer harbor at Otozu, on the west side of Ōita, the prefectural capital.
Latitude
33.2513°
Longitude
131.5873°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

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

Structure: round strongly conical concrete tower with lantern and gallery

References & Identifiers

Nearest Port
Oita(3.7 km)
Admiralty No.
M4950
NGA No.
9388
USCG No.
JCG-4994
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Frequently Asked Questions

How do mariners identify Ōita Kō East Breakwater Lighthouse at night?+
Ōita Kō East Breakwater 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 Ōita Kō East Breakwater Lighthouse guide vessels into?+
Ōita Kō East Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Oita at 4 NM to the E. Other ports served include Beppushinko (5.3 NM NW), Beppu, Oita (5.3 NM NW), Hiji (5.3 NM NW), Kitsuki (10 NM N). Mariners should consult the relevant chart for full approach and pilotage information.
Is Ōita Kō East Breakwater Lighthouse still active and maintained?+
Yes, Ōita Kō East Breakwater 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 Ōita Kō East Breakwater Lighthouse?+
Ōita Kō East Breakwater 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 Ōita Kō East Breakwater Lighthouse?+
You can track vessels near Ōita Kō East Breakwater 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.