Field guide of Izu-Oshima Volcano

Abstract

Izu-Oshima volcano is an active basaltic stratovolcano in the Izu-Mariana arc, and its last major eruption occurred in 1986. This field guide includes descriptions about the 1986 products, the Miharayama Central Cone, the 1421? product at the southern coast, the 1.7-ka caldera-forming products, the pre-caldera tephra formation and the 2013 lahar.