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Yashima Lighthouse

Fl W 10s🇯🇵Seto Naikai Western, JPInactive

Location & Light Range

About Yashima Lighthouse

This lighthouse features a 59-meter cylindrical metal tower painted white. Its focal height reaches 59 meters, providing a geographic range of 20 nautical miles. The structure itself is described as a cylindrical mast. It is no longer operational.

Light & Optic

Characteristic Signature
Fl W 10s
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Interval
10s
Raw Code
Fl
Focal Height
59m
Light Range
20NM (37.0 km)
Geographic Range
20NM

Location

City
Seto Naikai Western
Country
🇯🇵JP
Latitude
33.7135°
Longitude
132.1340°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
59m
Tower Shape
cylindrical
Tower Color
white
Material
metal

Structure: Cylindrical mast; 10

References & Identifiers

Admiralty No.
M5414
NGA No.
9160
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Frequently Asked Questions

How far offshore can Yashima Lighthouse be seen?+
With a focal height of 59 meters and a nominal range of 20 nautical miles (approximately 37.0 km), Yashima is visible from well offshore under standard atmospheric conditions. Actual visibility depends on observer height, weather, and sea state. Lights of this range are typically used as landfall lights by vessels approaching from the open sea.
How do mariners identify Yashima Lighthouse at night?+
Yashima displays the characteristic Fl W 10s — 1 white flash every 10 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.
Which ports and harbors does Yashima Lighthouse guide vessels into?+
Yashima Lighthouse assists vessels approaching 5 nearby ports. The closest is Hirao at 14.2 NM to the N. Other ports served include Yanai (14.2 NM N), Kuka (15.7 NM NNE), MITSUKE (16.4 NM SSE), Ikata (17.7 NM SE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Yashima Lighthouse still active and maintained?+
Yashima Lighthouse is currently listed as inactive. It may have been decommissioned, replaced by a different navigation aid, or temporarily taken out of service. Mariners should check the latest Notices to Mariners for current status.
What shipping routes pass near Yashima Lighthouse?+
Yashima 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 Yashima Lighthouse?+
You can track vessels near Yashima 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.