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Iori Lighthouse

Fl Red 5s🇯🇵Nanao, JPOperational

Location & Light Range

About Iori Lighthouse

Also known as: #Iori (Inori) Kō

This concrete lighthouse stands 9 meters tall, featuring a square, single-story equipment building from which a concrete post rises. Its exterior is painted white and red. The light emits a single red flash every 5 seconds, visible for 8.4 nautical miles. The structure includes a concrete post attached to a square, 1-story concrete equipment building. The site is open to visitors, though the tower itself is closed to the public. It is located near Nanao in Ishikawa Prefecture, Japan.

Why it matters: The lighthouse aids local fishing fleets and coastal vessels navigating the Japanese waters near Nanao with its regular red flash.

Light & Optic

Characteristic Signature
Fl Red 5s
Flash Type
Flashing
Light Color
Red
Interval
5s
Raw Code
Fl R 5s
Focal Height
5m
Geographic Range
8.4NM

Location

City
Nanao
Country
🇯🇵Japan
Region
Ishikawa Prefecture
Latitude
37.0382°
Longitude
137.0455°

References & Identifiers

Nearest Port
Nanao(3.5 km)
Admiralty No.
M7171
NGA No.
3020
ARLHS No.
JPN-173

Tower & Structure

Tower Height
9m
Tower Shape
square
Tower Color
white and red
Material
concrete

Structure: concrete post attached to a square 1-story concrete equipment building

Visiting

Open to public
Site open, tower closed

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Iori Lighthouse at night?+
Iori 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 Iori Lighthouse guide vessels into?+
Iori Lighthouse assists vessels approaching 5 nearby ports. The closest is Nanao at 3.6 NM to the WNW. Other ports served include Nakanoto (7.7 NM WSW), Fushikitoyama (15.3 NM S), Toyamashinko (16.6 NM SSE), Fushiki (16.8 NM SSE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Iori Lighthouse still active and maintained?+
Yes, Iori 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 Iori Lighthouse?+
Iori 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 Iori Lighthouse?+
You can track vessels near Iori 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.