volcanic region; volcanic zone
Refers to a geographical area with active or dormant volcanoes, often used in geology, disaster prevention, and travel contexts.
Japan is located in a volcanic region.
There are many hot springs in this volcanic zone.
火山帯 is a broader term for a volcanic belt or chain, while 火山地帯 emphasizes a specific region or zone.
Compound of 火山 (volcano) and 地帯 (zone, region).