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Karatsu East Harbor East Breakwater Lighthouse

Fl (2) Green 8s🇯🇵Karatsu, JPOperational

Location & Light Range

About Karatsu East Harbor East Breakwater Lighthouse

A white, square concrete post surmounts a 1-story concrete equipment building, situated at the northwest extremity of the detached east breakwater in Karatsu's eastern harbor. The structure measures 9.5 meters in height, with its light source at an elevation of 11 meters. It displays a green light, flashing Green every 8 seconds (Fl G 8s), with a geographic range of 10.7 nautical miles. While the site is accessible, the tower remains closed to the public. This concrete marker is situated 0.4 kilometers from Karatsu port.

Why it matters: This navigational marker designates the northwest end of the detached east breakwater, a primary barrier for Karatsu's eastern harbor, and serves as a reference for vessels approaching or departing the port.

Light & Optic

Characteristic Signature
Fl (2) Green 8s
Flash Type
Flashing
Light Color
Green
Flash Count
2 flashes
Interval
8s
Raw Code
Fl G 8s
Focal Height
11m
Geographic Range
10.7NM

Location

City
Karatsu
Country
🇯🇵Japan
Region
Saga Prefecture
Sea Region
Karatsu's eastern harbor, marking the northwest end of the detached east breakwater.
Latitude
33.4708°
Longitude
129.9668°

References & Identifiers

Nearest Port
Karatsu(0.4 km)
Admiralty No.
M5269.62
NGA No.
12268

Tower & Structure

Tower Height
9.5m
Tower Shape
square
Tower Color
white
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 Karatsu East Harbor East Breakwater Lighthouse at night?+
Karatsu East Harbor East Breakwater displays the characteristic Fl (2) Green 8s — 2 green flashes every 8 seconds. 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 green color may indicate a specific sector or warning zone.
Which ports and harbors does Karatsu East Harbor East Breakwater Lighthouse guide vessels into?+
Karatsu East Harbor East Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Karatsu at 0.8 NM to the N. Other ports served include Tobo (1.8 NM WNW), Yobuko (5.7 NM NW), Kafuri (10.8 NM ENE), Fukushima, Nagasaki (11.1 NM SW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Karatsu East Harbor East Breakwater Lighthouse still active and maintained?+
Yes, Karatsu East Harbor 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 Karatsu East Harbor East Breakwater Lighthouse?+
Karatsu East Harbor 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 Karatsu East Harbor East Breakwater Lighthouse?+
You can track vessels near Karatsu East Harbor 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.