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Sōma Kō Matsukawa South Breakwater Lighthouse

Fl Green 4s🇯🇵Soma, JPOperational

Location & Light Range

About Sōma Kō Matsukawa South Breakwater Lighthouse

This concrete lighthouse, standing 11 meters tall, marks the extremity of the main breakwater at Matsukawa harbor, southeast of Sōma. The structure consists of a square, one-story concrete equipment building from which a square concrete post rises. Its light emits a single green flash every four seconds, visible for nearly 12 nautical miles. The lighthouse is situated approximately 0.7 kilometers from the nearest port of Souma. This operational aid provides guidance for vessels entering the sheltered waters of Matsukawa harbor.

Why it matters: The light is essential for vessels navigating the entrance to Matsukawa harbor, specifically warning them of the end of the south breakwater. Its consistent green flash offers a reliable reference point for local fishing boats and other small craft operating in this coastal area.

Light & Optic

Characteristic Signature
Fl Green 4s
Flash Type
Flashing
Light Color
Green
Interval
4s
Raw Code
Fl G 4s
Focal Height
15m
Geographic Range
11.9NM

Location

City
Soma
Country
🇯🇵Japan
Region
Fukushima Prefecture
Sea Region
Matsukawa harbor, just southeast of Sōma harbor, marking the end of the main breakwater.
Latitude
37.8372°
Longitude
140.9766°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

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

Structure: concrete post rising from a square 1-story concrete equipment building

References & Identifiers

Nearest Port
Souma(0.7 km)
Admiralty No.
M6517
NGA No.
4488
ARLHS No.
JPN-1353
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Frequently Asked Questions

How do mariners identify Sōma Kō Matsukawa South Breakwater Lighthouse at night?+
Sōma Kō Matsukawa South Breakwater displays the characteristic Fl Green 4s. 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 Matsukawa South Breakwater Lighthouse guide vessels into?+
Sōma Kō Matsukawa South Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Souma at 0.4 NM to the WNW. Other ports served include Soma (0.7 NM WSW), Haramachi (10.5 NM SSE), Sendaishiogama (26.4 NM N), Satoura (28.9 NM N). Mariners should consult the relevant chart for full approach and pilotage information.
Is Sōma Kō Matsukawa South Breakwater Lighthouse still active and maintained?+
Yes, Sōma Kō Matsukawa 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 Matsukawa South Breakwater Lighthouse?+
Sōma Kō Matsukawa 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 Matsukawa South Breakwater Lighthouse?+
You can track vessels near Sōma Kō Matsukawa 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.