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Higashiharima Ko Lighthouse

Fl G 3s🇯🇵Seto Naikai Eastern, JPOperational

Location & Light Range

About Higashiharima Ko Lighthouse

This green, concrete beacon stands on a pile in Seto Naikai Eastern. The lantern tower reaches 30 meters in height, with its focal plane situated 17 meters above the water. The navigational light emits a single green flash every 3 seconds. This light is synchronized with K2242, ensuring coordinated signaling.

Light & Optic

Characteristic Signature
Fl G 3s
Flash Type
Flashing
Light Color
Green
Flash Count
1 flash
Interval
3s
Raw Code
Fl.G. period 3s
Focal Height
17m
Light Range
7NM (13.0 km)
Geographic Range
7NM

Location

City
Seto Naikai Eastern
Country
🇯🇵JP
Latitude
34.6983°
Longitude
134.8318°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

Tower Height
30m
Tower Shape
lantern
Tower Color
green
Material
concrete

Structure: Green beacon, on pile; 30. Synchronized with K2242

References & Identifiers

Admiralty No.
M5774
NGA No.
7684
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Frequently Asked Questions

How far offshore can Higashiharima Ko Lighthouse be seen?+
With a focal height of 17 meters and a nominal range of 7 nautical miles (approximately 13.0 km), Higashiharima Ko 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 Higashiharima Ko Lighthouse at night?+
Higashiharima Ko displays the characteristic Fl G 3s — 1 green flash every 3 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 Higashiharima Ko Lighthouse guide vessels into?+
Higashiharima Ko Lighthouse assists vessels approaching 5 nearby ports. The closest is Higashiharima at 0.1 NM to the NE. Other ports served include Kakogawa (0.1 NM NE), Takasago (0.1 NM NE), Eigashima (4.2 NM ESE), Sone (5 NM NW). Mariners should consult the relevant chart for full approach and pilotage information.
Is Higashiharima Ko Lighthouse still active and maintained?+
Yes, Higashiharima Ko 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 Higashiharima Ko Lighthouse?+
Higashiharima Ko 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 Higashiharima Ko Lighthouse?+
You can track vessels near Higashiharima Ko 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.