Oshima as an island stratovolcano with a large caldera on its summit. Stratovolcanoes are conical volcanoes built up by many layers of hardened lava and volcanic ash, with steep profiles and periodic eruptions.Know More
The main stratovolcano cone of the island has a base composed of basalt lava and pyroclastic rocks. When an erupting volcano empties a shallow magma chamber, the volcanic formation can collapse into the voided reservoir and produce a cauldron-like depression.
Based on geological evidence, it is estimated that Oshima has erupted over 100 times since 8450 B.C. As of 2014, the last eruption was in 1990 at the summit of Mihara-yama.Learn more about Volcanoes
Mount Tambora is a stratovolcano, also known as a composite volcano. In addition to a stratovolcano's conical form, other common characteristics include the volcano's steep profile, thick lava that hardens quickly and a composition that includes layers of lava, ash and fragments pushed from the volcano during an eruption.Full Answer >
Mt. Shasta is classified as a steed-sided stratovolcano. The volcano is located in Siskiyou County, California along the I-5 corridor.Full Answer >
Mount Kilauea on the Big Island of Hawaii is a shield volcano. Its continuous lava flow since 1983 is a defining characteristic of a shield volcano.Full Answer >
Mt. Kilimanjaro is a stratovolcano. A stratovolcano, also called a composite volcano, is tall and steep and has many layers of lava, tephra (what falls back through the air after an eruption) and ash. This is one of the most typical volcanoes.Full Answer >