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Murotsu Shima Lighthouse

Fl White 5s🇯🇵Okushiri, JPOperational

Location & Light Range

About Murotsu Shima Lighthouse

This concrete lighthouse stands 12 meters tall on the highest point of a reef, 4.6 kilometers south of Aonae Misaki. The cylindrical tower is painted white with a single red horizontal band and features a lantern and gallery. Its focal height is 15 meters, and it emits a white flash every 5 seconds, visible for 11.9 nautical miles. The lighthouse is situated on a small island near Okushiri, within Hokkaido Prefecture, Japan. It is located 2.7 kilometers by sea from the nearest port, Aonae.

Why it matters: The lighthouse warns mariners of the dangerous reef it marks, aiding safe passage for vessels navigating the waters south of Aonae Misaki.

Light & Optic

Characteristic Signature
Fl White 5s
Flash Type
Flashing
Light Color
White
Interval
5s
Raw Code
Fl W 5s
Focal Height
15m
Geographic Range
11.9NM

Location

City
Okushiri
Country
🇯🇵Japan
Region
Hokkaido Prefecture
Sea Region
Located on a small island, the highest point of a reef, 4.6 km south of Aonae Misaki.
Latitude
42.0147°
Longitude
139.4520°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
12m
Tower Shape
cylindrical
Tower Color
white with one red horizontal band
Material
concrete

Structure: round cylindrical concrete tower with lantern and gallery, painted white with one red horizontal band

References & Identifiers

Nearest Port
Aonae(2.7 km)
ARLHS No.
JPN-921
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Frequently Asked Questions

How do mariners identify Murotsu Shima Lighthouse at night?+
Murotsu Shima displays the characteristic Fl White 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 white color may indicate a specific sector or warning zone.
Which ports and harbors does Murotsu Shima Lighthouse guide vessels into?+
Murotsu Shima Lighthouse assists vessels approaching 5 nearby ports. The closest is Aonae at 2.7 NM to the N. Other ports served include Okushiri (10.3 NM NNE), Motomachi (30.6 NM E), Esashi/Hiyama (31.2 NM ESE), Setana (31.3 NM NE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Murotsu Shima Lighthouse still active and maintained?+
Yes, Murotsu Shima 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.
How can I track vessels near Murotsu Shima Lighthouse?+
You can track vessels near Murotsu Shima 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.