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Seki Misaki Lighthouse

Iso W 6s🇯🇵Toyama and Niigata, JPOperational

Location & Light Range

About Seki Misaki Lighthouse

Seki Misaki is a white concrete mast lighthouse standing 16 meters high. Its focal height reaches 145 meters, and it emits an isophase white light on a 6-second cycle. The structure, equipped with a radar reflector, operates solely during nighttime hours. It is a private aid to navigation.

Light & Optic

Characteristic Signature
Iso W 6s
Flash Type
Isophase
Light Color
White
Flash Count
1 flash
Interval
6s
Raw Code
Iso.W. period 6s
Focal Height
145m
Geographic Range
8NM

Location

City
Toyama and Niigata
Country
🇯🇵JP
Latitude
38.2495°
Longitude
138.3995°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
16m
Tower Shape
mast
Tower Color
white
Material
concrete

Structure: Mast; 16. Operates at night only. Private. Radar reflector

References & Identifiers

Admiralty No.
M7107.6
NGA No.
3268
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Frequently Asked Questions

How do mariners identify Seki Misaki Lighthouse at night?+
Seki Misaki displays the characteristic Iso 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 Seki Misaki Lighthouse guide vessels into?+
Seki Misaki Lighthouse assists vessels approaching 5 nearby ports. The closest is Shirose at 7 NM to the SSE. Other ports served include Ryotsu (10.8 NM S), Futami, Niigata (17.5 NM SSW), OTA (20.6 NM S), Akadomari (22.7 NM S). Mariners should consult the relevant chart for full approach and pilotage information.
Is Seki Misaki Lighthouse still active and maintained?+
Yes, Seki Misaki 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 Seki Misaki Lighthouse?+
Seki Misaki 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 Seki Misaki Lighthouse?+
You can track vessels near Seki Misaki 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.