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Barren Island, the only active volcano in South Asia, is located in which sea? (A) Arabian Sea (B) Laccadive Sea (C) Andaman Sea (D) South China Sea
Barren Island is situated approximately 135 kilometers northeast of Port Blair in the Andaman Sea. As the sole active volcano in South Asia, its geographical importance is immense for Indian geologists. The volcano rises from the seabed and is part of a volcanic chain that extends from Myanmar to InRead more
Barren Island is situated approximately 135 kilometers northeast of Port Blair in the Andaman Sea. As the sole active volcano in South Asia, its geographical importance is immense for Indian geologists. The volcano rises from the seabed and is part of a volcanic chain that extends from Myanmar to Indonesia. Its first recorded eruption was in 1787 and it has seen renewed activity in the 21st century. The island is uninhabited and consists of a caldera with a central cinder cone, providing a unique site for studying island-arc volcanism and tectonic plate movements in the eastern Bay of Bengal.
See lessWhich of the following is a ‘Dormant’ volcano?
Mount Kilimanjaro in Tanzania is a classic dormant stratovolcano. A volcano is termed dormant or "sleeping" when it has been quiet for a long duration but still possesses a potential magma supply. Kilimanjaro consists of three volcanic cones: Shira, Mawenzi and Kibo. While Shira and Mawenzi are extiRead more
Mount Kilimanjaro in Tanzania is a classic dormant stratovolcano. A volcano is termed dormant or “sleeping” when it has been quiet for a long duration but still possesses a potential magma supply. Kilimanjaro consists of three volcanic cones: Shira, Mawenzi and Kibo. While Shira and Mawenzi are extinct, Kibo is dormant. Scientific observations of fumaroles and sulfurous odors at Kibo’s crater indicate that geothermal activity persists beneath the surface. Geographically, it is the highest peak in Africa and serves as a vital indicator of the tectonic stability and ongoing rifting processes within the East African Rift System.
See lessThe ‘Soufrière Hills’ volcano, which caused massive displacement in the 1990s, is located in:
The Soufrière Hills volcano is a stratovolcano located on the British Overseas Territory of Montserrat in the Lesser Antilles island arc of the Caribbean. Its catastrophic eruption in the mid-1990s rendered the southern half of the island an "exclusion zone." Geographically, the eruption is famous fRead more
The Soufrière Hills volcano is a stratovolcano located on the British Overseas Territory of Montserrat in the Lesser Antilles island arc of the Caribbean. Its catastrophic eruption in the mid-1990s rendered the southern half of the island an “exclusion zone.” Geographically, the eruption is famous for its massive lava domes and destructive pyroclastic flows that reached the sea. The event significantly changed the island’s geography, creating new coastline through ash deposits. It remains one of the world’s most strictly monitored volcanoes due to its history of sudden, high-intensity eruptions and its impact on human settlement patterns.
See lessVolcanoes that have not erupted for a very long time and show no signs of future activity are called: (A) Active (B) Dormant (C) Extinct (D) Sleeping
An extinct volcano is one that scientists believe will never erupt again. This happens when the volcano is no longer fueled by a magma source. Geographically, this often occurs when tectonic plates shift, moving a volcanic mountain away from its "hotspot" or when a subduction zone becomes inactive.Read more
An extinct volcano is one that scientists believe will never erupt again. This happens when the volcano is no longer fueled by a magma source. Geographically, this often occurs when tectonic plates shift, moving a volcanic mountain away from its “hotspot” or when a subduction zone becomes inactive. Unlike dormant volcanoes, which may still have hot magma deep below, extinct volcanoes are geologically cold. Over time, these peaks lose their characteristic conical shape due to weathering and erosion, eventually leaving behind only hard volcanic remnants like volcanic necks or weathered fertile highlands.
See lessThe ‘Pelean’ type of eruption is geographically most significant for producing:
Pelean eruptions are the most violent category in volcanic geography, named after the 1902 disaster of Mount Pelée. They are characterized by extremely thick, silica-rich magma that creates lava domes. When these domes collapse or are blasted apart, they release a Nuée Ardente—a dense, turbulent cloRead more
Pelean eruptions are the most violent category in volcanic geography, named after the 1902 disaster of Mount Pelée. They are characterized by extremely thick, silica-rich magma that creates lava domes. When these domes collapse or are blasted apart, they release a Nuée Ardente—a dense, turbulent cloud of hot gas and volcanic fragments. These flows can travel at speeds exceeding 100 miles per hour, destroying everything in their path. Unlike vertical ash columns, Pelean eruptions often involve lateral blasts, making them a primary concern for disaster management in densely populated volcanic regions near subduction zones.
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