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Sōma Kō South Breakwater Lighthouse

F green 5s🇯🇵Shinchi, JPOperational

Location & Light Range

About Sōma Kō South Breakwater Lighthouse

A cylindrical white concrete tower with a flared top, this lighthouse stood 11 meters tall. Its focal height was 3 meters. The light emitted a green flash, specifically a single green flash, on a 3-second cycle. It was located at the end of the original south breakwater of Sōma harbor. This structure was removed in 2018.

Why it matters: The lighthouse served as a guide for vessels entering Sōma harbor, a port supporting local fisheries and maritime trade.

Light & Optic

Characteristic Signature
F green 5s
Flash Type
Fixed
Light Color
green
Interval
5s
Raw Code
F.G. 59
Focal Height
3m

Construction & History

Significant events: Removed in 2018

References & Identifiers

Nearest Port
Souma(0.3 km)
Admiralty No.
M6517.4
NGA No.
4480
ARLHS No.
JPN-593

Tower & Structure

Tower Height
11m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round cylindrical white concrete tower with a flared top

Location

City
Shinchi
Country
🇯🇵Japan
Region
Fukushima Prefecture
Sea Region
end of the original south breakwater of Sōma harbor
Latitude
37.8445°
Longitude
140.9674°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Sōma Kō South Breakwater Lighthouse at night?+
Sōma Kō South Breakwater displays the characteristic F green 5s. 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 green color may indicate a specific sector or warning zone.
Which ports and harbors does Sōma Kō South Breakwater Lighthouse guide vessels into?+
Sōma Kō South Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Souma at 0.3 NM to the S. Other ports served include Soma (0.7 NM SSW), Haramachi (11 NM SSE), Sendaishiogama (26 NM N), Satoura (28.5 NM N). Mariners should consult the relevant chart for full approach and pilotage information.
Is Sōma Kō South Breakwater Lighthouse still active and maintained?+
Yes, Sōma Kō South Breakwater 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 Sōma Kō South Breakwater Lighthouse?+
Sōma Kō South Breakwater 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 Sōma Kō South Breakwater Lighthouse?+
You can track vessels near Sōma Kō South Breakwater 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.