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Tsunowa Lighthouse

Occ W 6s🇯🇵Shimane, JPOperational

Location & Light Range

About Tsunowa Lighthouse

The Tsunowa Lighthouse is a 14-meter quadrilateral latticed tower with a red and white rectangular daymark. It emits an occulting white light, characterized by two flashes every 6 seconds. The structure is built from fiberglass. Its focal height is 34 meters.

Why it matters: This lighthouse has a geographic range of 12 nautical miles.

Light & Optic

Characteristic Signature
Occ W 6s
Flash Type
Occ
Light Color
White
Flash Count
1 flash
Interval
6s
Raw Code
Oc.(2)W. period 6s
Focal Height
34m
Geographic Range
12NM

Location

City
Shimane
Country
🇯🇵JP
Latitude
35.5814°
Longitude
133.1397°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
14m
Tower Shape
quadrilateral
Tower Color
white and red
Material
fiberglass

Structure: Quadrilateral latticed tower, red and white rectangular daymark; 14

References & Identifiers

Admiralty No.
M7318.4
NGA No.
2012
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Frequently Asked Questions

How do mariners identify Tsunowa Lighthouse at night?+
Tsunowa displays the characteristic Occ W 6s — 1 white flash every 6 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 Tsunowa Lighthouse guide vessels into?+
Tsunowa Lighthouse assists vessels approaching 5 nearby ports. The closest is Kasaura at 0.5 NM to the WSW. Other ports served include Kitaura, Ehime (1.4 NM SE), Shichirui (4.5 NM E), Hoda (5.6 NM E), Sakaiminato (7 NM ESE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Tsunowa Lighthouse still active and maintained?+
Yes, Tsunowa 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 Tsunowa Lighthouse?+
Tsunowa 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 Tsunowa Lighthouse?+
You can track vessels near Tsunowa 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.