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Otozu Kō East Breakwater Lighthouse

Fl Red 3s🇯🇵Oita, JPOperational

Location & Light Range

About Otozu Kō East Breakwater Lighthouse

This concrete lighthouse stands 15 meters tall as a cylindrical structure with a lantern and gallery. Its white tower reaches a focal height of 18 meters above the water. Located at the end of Otozu harbor's east breakwater in Oita Prefecture, Japan, it emits a red light. This light flashes once every 3 seconds, visible for 12.7 nautical miles. The structure marks the extremity of the breakwater, providing a distinct navigational point.

Why it matters: This lighthouse is indispensable for safe navigation into and out of Otozu harbor, specifically marking the terminal point of the east breakwater.

Light & Optic

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

Location

City
Oita
Country
🇯🇵Japan
Region
Oita Prefecture
Sea Region
Otozu harbor, at the end of its east breakwater.
Latitude
33.2779°
Longitude
131.6639°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
15m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round cylindrical concrete tower with lantern and gallery

References & Identifiers

Nearest Port
Oita(1.1 km)
Admiralty No.
M4947.74
NGA No.
9360
USCG No.
JCG-4987
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Frequently Asked Questions

How do mariners identify Otozu Kō East Breakwater Lighthouse at night?+
Otozu Kō East Breakwater displays the characteristic Fl Red 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 red color may indicate a specific sector or warning zone.
Which ports and harbors does Otozu Kō East Breakwater Lighthouse guide vessels into?+
Otozu Kō East Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Oita at 1.7 NM to the S. Other ports served include Beppushinko (7.7 NM WNW), Beppu, Oita (7.7 NM WNW), Hiji (7.7 NM WNW), Morie (8.1 NM N). Mariners should consult the relevant chart for full approach and pilotage information.
Is Otozu Kō East Breakwater Lighthouse still active and maintained?+
Yes, Otozu 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 Otozu Kō East Breakwater Lighthouse?+
Otozu 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 Otozu Kō East Breakwater Lighthouse?+
You can track vessels near Otozu 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.