Geology and Minerals
Koryaksky or Koryakskaya Sopka (Russian: Коря́кская со́пка) is an active volcano on the Kamchatka Peninsula in the Russian Far East. It lies within sight of Kamchatka Krai's administrative center, Petropavlovsk-Kamchatsky. Together with neighbouring Avachinsky, it is considered a Decade Volcano, worthy of particular study in light of its history of explosive eruptions and proximity to populated areas.
Fault (geology).
Chaves, Portugal.
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