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Nakanosaku Kō Old East Breakwater Lighthouse

Fl 20s🇯🇵Iwaki, JPOperational

A red concrete post measuring 7.5 meters in height marked the entrance to the old inner harbor of Nakanosaku. This structure, first lit in 1935, was attached to a square, single-story concrete equipment shelter. It emitted two white flashes. The lighthouse stood on the east breakwater of the old inner harbor and had a geographic range of 26 nautical miles. It was destroyed by the tsunami in 2011 and officially declared obsolete in April 2016.

Why it matters: This light served local mariners entering the old inner harbor of Nakanosaku. Its destruction by the 2011 tsunami illustrated the vulnerability of coastal infrastructure to natural disasters.

Characteristic Signature
Fl 20s
Flash Type
Flashing
Interval
20s
Raw Code
Fl.(2)W
Focal Height
78m
Geographic Range
26NM
First Lit
1935

Significant events: Destroyed by 2011 tsunami, listed as obsolete in April 2016

Nearest Port
Nakanosaku(0.4 km)
Admiralty No.
M6507.4
NGA No.
4580
ARLHS No.
JPN-399
Tower Height
7.5m
Tower Shape
cylindrical
Tower Color
red
Material
concrete

Structure: A 7.5m red concrete post attached to a square 1-story concrete equipment shelter.

City
Iwaki
Country
🇯🇵Japan
Region
Fukushima Prefecture
Sea Region
East breakwater of the old inner harbor of Nakanosaku
Latitude
36.9607°
Longitude
140.9520°
Flag
Type
Name
Dist.
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How do mariners identify Nakanosaku Kō Old East Breakwater Lighthouse at night?+
Nakanosaku Kō Old East Breakwater displays the characteristic Fl 20s. 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.
Which ports and harbors does Nakanosaku Kō Old East Breakwater Lighthouse guide vessels into?+
Nakanosaku Kō Old East Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Nakanosaku at 0.1 NM to the S. Other ports served include Ena (0.6 NM NE), Ishiwaki (3 NM WSW), Onahama (3.7 NM WSW), Yotsukura (9 NM NNE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Nakanosaku Kō Old East Breakwater Lighthouse still active and maintained?+
Yes, Nakanosaku Kō Old 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 Nakanosaku Kō Old East Breakwater Lighthouse?+
Nakanosaku Kō Old 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 Nakanosaku Kō Old East Breakwater Lighthouse?+
You can track vessels near Nakanosaku Kō Old 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.