Showashinzan

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Showashinzan
Elevation: 731 metres
Coordinates: 42°32′N 140°50′E
Location: Hokkaido, Japan
Type: Stratovolcano (active)
First ascent: --
Last eruption: --
Easiest route: --
Showashinzan.  Note the volcanic steam on the left.
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Showashinzan. Note the volcanic steam on the left.

Showashinzan (昭和新山) is a volcanic mountain in the Shikotsu-Toya National Park, Hokkaido, Japan, next to Mount Usu.

The mountain was created between 1944 and 1945. Initially, a series of strong earthquakes shook the area, and wheat fields were rapidly uplifted. Lava broke through the surface and the current peak was created.

The peak is now 731 m tall, and still actively smoking.

The name Showashinzan literally means "Showa new mountain", as it formed during the reign of Emperor Hirohito, known as the Showa period.

[edit] War-time history

When Showashinzan first appeared, the Japanese authorities were worried that it might be interpreted as an unlucky wartime omen, and its existence was kept secret.

Much of the information about peak's formation during these years comes from local postmaster Masao Mimatsu, who kept detailed measurements of its progress.

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