A double volcano located in the eastern part of the Oga Peninsula in the mid-west of Akita Prefecture. It is 355 meters above sea level. Its shape is cone-troide shaped, and the entire mountain is covered in grass. It is included in Oga Quasi-National Park. The first volcanic activity formed a lava plateau that penetrated a 60-meter terrace, and the next activity formed the domes of Tonomine (where the observation deck is located) and Jakoshinagane. There is a record of a swarm of earthquakes with its epicenter in this area in 1810 (Bunka 7), which killed 61 people. On the northwest side of the summit can be seen the primary crater, about 600 meters in diameter, called Kyonomachi, and to the southwest a new crater called Furutama-no-ike remains in the shape of a bowl. [Reijiro Miyazaki] [References] | |Oga Quasi-National Park. Oga City, Akita Prefecture ©Akita Prefecture Tourism Division "> Kanpuzan Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
秋田県中西部、男鹿半島(おがはんとう)の東部にある二重式火山。標高355メートル。山容はコニートロイデ型、全山芝生に覆われている。男鹿国定公園に含まれる。最初の火山活動は60メートルの段丘を貫いて溶岩台地を形成、次の活動で塔の峰(展望台のある所)や、蛇越長根(じゃこしながね)のドームが形成された。1810年(文化7)この付近を震源とする群発地震の記録があり、死者61名に上ったという。山頂北西側には経ノ町(きょうのまち)とよばれる直径約600メートルの第一次噴火口がみられ、南西方には古玉ノ池(ふるたまのいけ)といわれる新火口が鉢状に残っている。 [宮崎禮次郎] [参照項目] | |男鹿国定公園域。秋田県男鹿市©秋田県観光課"> 寒風山 出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例 |
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