Ashika Shima Lighthouse

Ashika Shima Lighthouse is a maritime navigation aid located in Yokosuka, JP. It is currently operational and active, providing guidance to vessels navigating the surrounding waters. The light sits at a focal height of 16 meters above mean sea level. Under standard atmospheric conditions, the light is visible up to 11 nautical miles (approximately 20.4 km) from the observer.

Light characteristic: The identifying signal of this lighthouse is Fl White 3s. This characteristic is published in the relevant List of Lights and can be used by mariners to confirm their position relative to the coast. The light color is white, which may indicate a specific sector or warning zone.

Visibility and range: With a focal height of 16 meters and a nominal range of 11 nautical miles, this light serves as a significant coastal navigation aid. Vessels transiting along the coast or approaching from moderate distances can use this light for position fixing and course confirmation.

Position: Ashika Shima Lighthouse is positioned at 35.2121°N, 139.7351°E, near Yokosuka in JP. The blue circle on the map represents the nominal 11-nautical-mile range of the light.

Geographic context: Ashika Shima Lighthouse is situated on the Sea of Japan, within the Japan / Korea shipping lane — a busy shipping corridor linking the major ports of Japan and South Korea. The location falls within the temperate maritime climate zone.

Nearby lighthouses in JP: Other lighthouses in the region include Abashiri East Breakwater, Abashiri Island Breakwater North End, Abashiri North Breakwater, Abashiri South Breakwater East End, Abuka Kō. View all on the Lighthouses Directory.