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Ishinomaki Kō West Breakwater Lighthouse

Iso G 4s🇯🇵Northeastern Honshū, JPOperational

Location & Light Range

About Ishinomaki Kō West Breakwater Lighthouse

A white concrete square equipment shelter supports a white metal column, reaching a focal height of 12 meters. This lighthouse stands on an old jetty at the mouth of the Kitakami River, situated west of modern port facilities on Northeastern Honshū. Its geographic range extends to 5 nautical miles. The light emits a fixed green signal.

Light & Optic

Characteristic Signature
Iso G 4s
Flash Type
Isophase
Light Color
Green
Flash Count
1 flash
Interval
4s
Raw Code
F.G.
Focal Height
12m
Geographic Range
5NM

Location

City
Northeastern Honshū
Country
🇯🇵JP
Latitude
38.4070°
Longitude
141.3168°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
13m
Tower Shape
square
Tower Color
white
Material
concrete

Structure: White metal column; 13. NEW ZEALAND-NORTH ISLAND 89 (1)

References & Identifiers

Admiralty No.
M6533
NGA No.
4408
ARLHS No.
JPN-1149
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Frequently Asked Questions

How do mariners identify Ishinomaki Kō West Breakwater Lighthouse at night?+
Ishinomaki Kō West Breakwater displays the characteristic Iso G 4s — 1 green flash every 4 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 Ishinomaki Kō West Breakwater Lighthouse guide vessels into?+
Ishinomaki Kō West Breakwater Lighthouse assists vessels approaching 5 nearby ports. The closest is Ishinomaki at 1.2 NM to the W. Other ports served include Watanoha (2.3 NM E), Oginohama (6.4 NM ESE), Takami (6.5 NM WSW), Akehama (6.8 NM ENE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Ishinomaki Kō West Breakwater Lighthouse still active and maintained?+
Yes, Ishinomaki Kō West 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 Ishinomaki Kō West Breakwater Lighthouse?+
Ishinomaki Kō West 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 Ishinomaki Kō West Breakwater Lighthouse?+
You can track vessels near Ishinomaki Kō West 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.