Azuma pyroclastic flow

…The pyroclastic flow that erupted on the evening of the 7th flowed down the northern slope and buried the dense forest area on the northern foot of the mountain. This is called the Azuma pyroclastic flow. The explosion that began around 10 a.m. on the 8th created a high-speed debris flow that flowed down the northern foot of the mountain, destroying and burying many settlements, including the village of Kamahara. …

*Some of the terminology that refers to "Azuma pyroclastic flow" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…7日夕刻に噴出した火砕流は北の斜面を流下して北麓の密林地帯を埋め尽くした。これは吾妻火砕流と呼ばれる。8日の午前10時ごろに始まった爆発は，北麓へ高速の土石流のような現象を生じて流下し，鎌原村をはじめ多くの集落を破壊し埋没させた。…

※「吾妻火砕流」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報