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Sōma Kō Northeast Breakwater Lighthouse

Fl (2) Green 6s🇯🇵Shinchi, JPOperational

Location & Light Range

About Sōma Kō Northeast Breakwater Lighthouse

This white, cylindrical concrete tower stands 12 meters tall, with its light positioned 16 meters above sea level. It is located at the north end of the detached northeast breakwater, marking the harbor entrance for Sōma. The light emits a green signal with a single flash every 6 seconds, visible for 12.2 nautical miles. Constructed from concrete, this structure has survived damage from a tsunami. It is situated 1.2 kilometers from the nearest port, Sōma, and is only accessible by boat.

Why it matters: The lighthouse's survival of a significant tsunami underscores its durable construction. It precisely marks the entrance to Sōma harbor, aiding navigation for all vessels.

Light & Optic

Characteristic Signature
Fl (2) Green 6s
Flash Type
Flashing
Light Color
Green
Flash Count
2 flashes
Interval
6s
Raw Code
Fl G 6s
Focal Height
16m
Geographic Range
12.2NM

Construction & History

Significant events: Survived tsunami damage

References & Identifiers

Nearest Port
Souma(1.2 km)
ARLHS No.
JPN-1166

Tower & Structure

Tower Height
12m
Tower Shape
cylindrical
Tower Color
white
Material
concrete

Structure: round cylindrical white concrete tower

Location

City
Shinchi
Country
🇯🇵Japan
Region
Fukushima Prefecture
Sea Region
Located at the north end of the detached northeast breakwater, marking the entrance to the harbor of Sōma.
Latitude
37.8676°
Longitude
140.9762°

Nearby Vessels

Flag
Type
Name
Dist.
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Frequently Asked Questions

How do mariners identify Sōma Kō Northeast Breakwater Lighthouse at night?+
Sōma Kō Northeast Breakwater displays the characteristic Fl (2) Green 6s — 2 green 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 green color may indicate a specific sector or warning zone.
Which ports and harbors does Sōma Kō Northeast Breakwater Lighthouse guide vessels into?+
Sōma Kō Northeast Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Souma at 1.7 NM to the SSW. Other ports served include Soma (2.2 NM SSW), Haramachi (12.2 NM SSE), Sendaishiogama (24.6 NM N), Satoura (27.1 NM N). Mariners should consult the relevant chart for full approach and pilotage information.
Is Sōma Kō Northeast Breakwater Lighthouse still active and maintained?+
Yes, Sōma Kō Northeast 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 Northeast Breakwater Lighthouse?+
Sōma Kō Northeast 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 Northeast Breakwater Lighthouse?+
You can track vessels near Sōma Kō Northeast 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.