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Tatsuma Lighthouse

Occ W 13s🇯🇵Nagoya (Aichi Prefecture), JPOperational

Location & Light Range

About Tatsuma Lighthouse

This lighthouse features a white, round tower standing 33 meters high. Its light emits three white flashes, creating an occulting pattern that repeats every 13 seconds. The focal height of the light is 14 meters above sea level. This structure provides a geographic range of 5 nautical miles. It is part of the Atsumi Wan navigational aids.

Light & Optic

Characteristic Signature
Occ W 13s
Flash Type
Occ
Light Color
White
Flash Count
1 flash
Interval
13s
Raw Code
Oc.(3)W. period 13s
Focal Height
14m
Geographic Range
5NM

Location

City
Nagoya (Aichi Prefecture)
Country
🇯🇵JP
Latitude
34.6607°
Longitude
137.0698°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
33m
Tower Shape
round
Tower Color
white

Structure: White tower; 33. ATSUMI WAN:

References & Identifiers

Admiralty No.
M6055.5
NGA No.
5836
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Frequently Asked Questions

How do mariners identify Tatsuma Lighthouse at night?+
Tatsuma displays the characteristic Occ W 13s — 1 white flash every 13 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 Tatsuma Lighthouse guide vessels into?+
Tatsuma Lighthouse assists vessels approaching 5 nearby ports. The closest is Fukue, Aichi at 2.3 NM to the ESE. Other ports served include Morozaki (5.3 NM WNW), Magusa (6.3 NM E), Toyohama, Aichi (7.1 NM WNW), Yoshida, Aichi (7.2 NM N). Mariners should consult the relevant chart for full approach and pilotage information.
Is Tatsuma Lighthouse still active and maintained?+
Yes, Tatsuma 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 Tatsuma Lighthouse?+
Tatsuma 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 Tatsuma Lighthouse?+
You can track vessels near Tatsuma 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.