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Shono Shima Lighthouse

Fl White 4s🇯🇵Uwajima, JPOperational

Location & Light Range

About Shono Shima Lighthouse

Shono Shima lighthouse stands as a white, cylindrical concrete tower 8 meters tall. Its light is positioned 10 meters above sea level and emits a single white flash every 4 seconds. The structure is located on a small islet situated off the tip of a promontory, approximately 10 kilometers west of Tsushimacho. This lighthouse is situated in the Ehime Prefecture of Japan. It is near the port of Iwamatsu, 2.7 kilometers away.

Why it matters: This lighthouse marks the islet and promontory it occupies, warning vessels of hazards in the waters west of Tsushimacho. Its light aids safe passage along this coastline for local shipping and fishing fleets.

Light & Optic

Characteristic Signature
Fl White 4s
Flash Type
Flashing
Light Color
White
Interval
4s
Raw Code
Fl W 4s
Focal Height
10m
Geographic Range
10.4NM

Location

City
Uwajima
Country
🇯🇵Japan
Region
Ehime Prefecture
Sea Region
on an islet off the tip of a promontory about 10 km west of Tsushimacho.
Latitude
33.1270°
Longitude
132.4418°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
8m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round cylindrical concrete tower

References & Identifiers

Nearest Port
Iwamatsu(2.7 km)
ARLHS No.
JPN-2419
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Frequently Asked Questions

How do mariners identify Shono Shima Lighthouse at night?+
Shono Shima displays the characteristic Fl White 4s. 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 Shono Shima Lighthouse guide vessels into?+
Shono Shima Lighthouse assists vessels approaching 5 nearby ports. The closest is Iwamatsu at 3.1 NM to the E. Other ports served include Hyakunoura (7.1 NM NE), Uwajima (7.9 NM NE), Aji (8.3 NM NE), Nagimi (8.3 NM NE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Shono Shima Lighthouse still active and maintained?+
Yes, Shono 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.
What shipping routes pass near Shono Shima Lighthouse?+
Shono Shima 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 Shono Shima Lighthouse?+
You can track vessels near Shono 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.