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Tokoname Lighthouse

Iso R 4s🇯🇵Nagoya (Aichi Prefecture), JPOperational

Location & Light Range

About Tokoname Lighthouse

This red, cylindrical concrete tower stands 8 meters high, with its focal plane at 7.5 meters. It displays an isophase red light, meaning the on and off periods are equal, on a 6-second cycle. The structure features a white cylindrical tower with an orange triangle daymark pointed upwards, accented by a black stripe.

Light & Optic

Characteristic Signature
Iso R 4s
Flash Type
Isophase
Light Color
Red
Flash Count
1 flash
Interval
4s
Raw Code
Iso
Focal Height
7.5m
Geographic Range
4NM

Location

City
Nagoya (Aichi Prefecture)
Country
🇯🇵JP
Latitude
34.8784°
Longitude
136.8362°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

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

Structure: White cylindrical tower, orange triangle, point up daymark, black stripe; 36

References & Identifiers

Admiralty No.
M6138
NGA No.
6120
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Frequently Asked Questions

How do mariners identify Tokoname Lighthouse at night?+
Tokoname displays the characteristic Iso R 4s — 1 red flash every 4 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 red color may indicate a specific sector or warning zone.
Which ports and harbors does Tokoname Lighthouse guide vessels into?+
Tokoname Lighthouse assists vessels approaching 5 nearby ports. The closest is Tokoname at 0.4 NM to the SSW. Other ports served include Kinuura (5.8 NM ESE), Take (5.9 NM ESE), Tokonami (5.9 NM ESE), Taketoyo (5.9 NM ESE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Tokoname Lighthouse still active and maintained?+
Yes, Tokoname 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 Tokoname Lighthouse?+
Tokoname 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 Tokoname Lighthouse?+
You can track vessels near Tokoname 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.