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Imari Fukushima Lighthouse

Fl White 3s🇯🇵Matsuura, JPOperational

Location & Light Range

About Imari Fukushima Lighthouse

This cylindrical white lighthouse stands 9 meters tall on a stone pier, with a focal height of 11 meters. Constructed from stone and concrete, its round tower sits on a reef off the south side of Fukushima harbor, opposite Imari city. The light emits a single white flash every 3 seconds and has a geographic range of 10.7 nautical miles. The site is open to visitors, though the tower itself is not accessible. It is located approximately 1 kilometer from the nearest port in Fukushima, Nagasaki Prefecture.

Why it matters: The lighthouse warns mariners of a submerged reef directly in the path to Imari harbor and guides local fishing and commercial vessels.

Light & Optic

Characteristic Signature
Fl White 3s
Flash Type
Flashing
Light Color
White
Interval
3s
Raw Code
Fl W 3s
Focal Height
11m
Geographic Range
10.7NM

Location

City
Matsuura
Country
🇯🇵Japan
Region
Nagasaki Prefecture
Sea Region
A reef off the harbor on the south side of Fukushima, opposite the city of Imari in Saga Prefecture.
Latitude
33.3594°
Longitude
129.8218°

References & Identifiers

Nearest Port
Fukushima, Nagasaki(1.0 km)
Admiralty No.
M5255.24
NGA No.
12116
ARLHS No.
JPN-2187

Tower & Structure

Tower Height
9m
Tower Shape
cylindrical
Tower Color
white
Material
stone, concrete

Structure: round concrete tower mounted on a round stone pier

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 Imari Fukushima Lighthouse at night?+
Imari Fukushima displays the characteristic Fl White 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 white color may indicate a specific sector or warning zone.
Which ports and harbors does Imari Fukushima Lighthouse guide vessels into?+
Imari Fukushima Lighthouse assists vessels approaching 5 nearby ports. The closest is Fukushima, Nagasaki at 1.2 NM to the WSW. Other ports served include Imari (5.5 NM SE), Tobo (9.3 NM NE), Karatsu (10.4 NM NE), Emukae (11.1 NM WSW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Imari Fukushima Lighthouse still active and maintained?+
Yes, Imari Fukushima 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 Imari Fukushima Lighthouse?+
Imari Fukushima 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 Imari Fukushima Lighthouse?+
You can track vessels near Imari Fukushima 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.