Volcano Pompeii. Before its catastrophic eruption of 1991, Pinatubo was an inconspicuous volcano, unknown to most people in the surrounding areas. Two other examples are the long-dormant Soufrière Hills volcano on the island of Montserrat, thought to be extinct before activity resumed in 1995, and Fourpeaked Mountain in Alaska, which, before its September 2006 eruption, had not erupted since before 8000 BCE and had long been thought to be extinct. The three common popular classifications of volcanoes can be subjective and some volcanoes thought to have been extinct have erupted again. To help prevent people from falsely believing they are not
Karymsky (volcano) an ongoing non-stop eruption occurring, and is the peninsula's most reliable volcano, which has been erupting continuously since 1996. Karymsky (volcano) Karymsky (, "Karymskaya sopka") is an active stratovolcano on the Kamchatka Peninsula, Russia. It is the most active volcano on the Kamchatka Peninsula, as well as the most active volcano of Kamchatka's eastern volcanic zone. It is named after the Karyms, an ethnic group in Russia. Karymsky is a symmetrical stratovolcano rising within a 5-km-wide caldera that formed during the early Holocene. Much of the cone is mantled by lava flows less than 200 years old. Historical eruptions have