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Izumozaki Kō Lighthouse

Fl Red 5s🇯🇵Izumozaki, JPOperational

Location & Light Range

About Izumozaki Kō Lighthouse

Izumozaki Kō was a cylindrical concrete tower, 11 meters tall, painted black with a single yellow horizontal band. It stood a short distance offshore from Izumozaki harbor to mark a shoal. The structure served as an aid to navigation, emitting a red flash every 5 seconds from a focal height of 14 meters. Its geographic range extended to 11.6 nautical miles. The lighthouse became redundant due to the construction of an outer breakwater that effectively encompassed the shoal it was designed to mark. Consequently, it was demolished in 2010.

Why it matters: The lighthouse was essential for marking a shoal near Izumozaki harbor, contributing to the safety of vessels entering and leaving the port.

Light & Optic

Characteristic Signature
Fl Red 5s
Flash Type
Flashing
Light Color
Red
Interval
5s
Raw Code
Fl R 5s
Focal Height
14m
Geographic Range
11.6NM

Construction & History

Significant events: Demolished in 2010, became redundant due to outer breakwater

References & Identifiers

Nearest Port
Teradomari(7.2 km)
Admiralty No.
M7118.6
NGA No.
3336
ARLHS No.
JPN-1274

Tower & Structure

Tower Height
11m
Tower Shape
cylindrical
Tower Color
black with one yellow horizontal band
Material
concrete

Structure: round cylindrical concrete tower, painted black with one yellow horizontal band

Location

City
Izumozaki
Country
🇯🇵Japan
Region
Niigata Prefecture
Sea Region
Located a short distance off Izumozaki harbor, marking a shoal.
Latitude
37.5453°
Longitude
138.6791°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Izumozaki Kō Lighthouse at night?+
Izumozaki Kō displays the characteristic Fl Red 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 red color may indicate a specific sector or warning zone.
Which ports and harbors does Izumozaki Kō Lighthouse guide vessels into?+
Izumozaki Kō Lighthouse assists vessels approaching 5 nearby ports. The closest is Teradomari at 7.3 NM to the NE. Other ports served include Kashiwazaki (12.6 NM SSW), Tsubame (13.6 NM ENE), Akadomari (23.2 NM NNW), OTA (23.9 NM NNW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Izumozaki Kō Lighthouse still active and maintained?+
Yes, Izumozaki Kō 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 Izumozaki Kō Lighthouse?+
Izumozaki Kō 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 Izumozaki Kō Lighthouse?+
You can track vessels near Izumozaki Kō 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.