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Nagashima Lighthouse

Fl (2) R 6s🇯🇵Honshu-South Coast, JPOperational

Location & Light Range

About Nagashima Lighthouse

This lighthouse features a white, round concrete tower standing 16 meters high. Its focal plane is situated 21 meters above mean high water. The light emitted is red and displays a single white flash every 5 seconds. The structure is located along the Honshu-South Coast of Japan.

Light & Optic

Characteristic Signature
Fl (2) R 6s
Flash Type
Flashing
Light Color
Red
Flash Count
2 flashes
Interval
6s
Raw Code
Fl.W. period 5s
Focal Height
21m
Light Range
5NM (9.3 km)
Geographic Range
5NM

Location

City
Honshu-South Coast
Country
🇯🇵JP
Latitude
34.1862°
Longitude
136.3583°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

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

Structure: White round concrete tower; 16

References & Identifiers

Admiralty No.
M6023.8
NGA No.
6544
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Frequently Asked Questions

How far offshore can Nagashima Lighthouse be seen?+
With a focal height of 21 meters and a nominal range of 5 nautical miles (approximately 9.3 km), Nagashima is visible from well offshore under standard atmospheric conditions. Actual visibility depends on observer height, weather, and sea state. As a shorter-range light, it primarily serves nearshore and coastal traffic.
How do mariners identify Nagashima Lighthouse at night?+
Nagashima displays the characteristic Fl (2) R 6s — 2 red flashes 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. The red color may indicate a specific sector or warning zone.
Which ports and harbors does Nagashima Lighthouse guide vessels into?+
Nagashima Lighthouse assists vessels approaching 5 nearby ports. The closest is Nagashima at 1.4 NM to the NW. Other ports served include Nishiki (2.4 NM NE), Hikimoto (7.3 NM SW), Yoshizu (9.1 NM NE), Owase (10 NM SW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Nagashima Lighthouse still active and maintained?+
Yes, Nagashima 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 Nagashima Lighthouse?+
Nagashima 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 Nagashima Lighthouse?+
You can track vessels near Nagashima 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.