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Ha Shima Lighthouse

Fl W🇯🇵Northeastern Honshū, JPOperational

Location & Light Range

About Ha Shima Lighthouse

This lighthouse is a 12-meter cylindrical concrete tower, painted white and topped with a lantern and gallery. It stands on a small island at the southwestern end of Ishinomaki Wan, approximately 13 kilometers southwest of Ishinomaki city on Japan's northeastern Honshū island. The light emits a single white flash every 3 seconds, visible for 16.4 nautical miles. The tower's focal plane is 36 meters above sea level. Access to the site is restricted and can only be reached by boat.

Why it matters: The lighthouse marks the southwestern entrance to Ishinomaki Wan, aiding maritime traffic entering or leaving the bay and navigating coastal approaches.

Light & Optic

Characteristic Signature
Fl W
Flash Type
Flashing
Light Color
White
Flash Count
1 flash
Raw Code
Fl W 3s
Focal Height
36m
Geographic Range
16.4NM

Location

City
Northeastern Honshū
Country
🇯🇵Japan
Region
Miyagi Prefecture
Sea Region
Located atop a small island at the southwestern end of Ishinomaki Wan (bay), about 13 km southwest of Ishinomaki.
Latitude
38.3152°
Longitude
141.1852°

Nearby Vessels

Flag
Type
Name
Dist.

Tower & Structure

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

Structure: round cylindrical concrete tower with lantern and gallery

References & Identifiers

Nearest Port
Isozaki(5.9 km)
ARLHS No.
JPN-075
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Frequently Asked Questions

How do mariners identify Ha Shima Lighthouse at night?+
Ha Shima displays the characteristic Fl W. 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.
Which ports and harbors does Ha Shima Lighthouse guide vessels into?+
Ha Shima Lighthouse assists vessels approaching 5 nearby ports. The closest is Takami at 4 NM to the N. Other ports served include Isozaki (6.3 NM WNW), Sendai, Miyagi (6.7 NM W), Satoura (7.2 NM W), Ishinomaki (7.5 NM NE). Mariners should consult the relevant chart for full approach and pilotage information.
Is Ha Shima Lighthouse still active and maintained?+
Yes, Ha Shima 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 Ha Shima Lighthouse?+
Ha Shima 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 Ha Shima Lighthouse?+
You can track vessels near Ha Shima 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.