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: Active volcanoes Global map of subduction zones, with subducted slabs contoured by depth Diagram of the geological process of subduction. The Ring of Fire (also known as the Pacific Ring of Fire, the Rim of Fire, the Girdle of Fire or the Circum-Pacific belt) [note 1] is a tectonic belt of volcanoes and earthquakes.
United States Geological Survey; Cascades Volcano Observatory, Vancouver, Washington; Index to CVO online volcanoes. Map: Tom Simkin, Robert I. Tilling, Peter R. Vogt, Stephen H. Kirby, Paul Kimberly, and David B. Stewart, Third Edition (Published 2006) interactive world map of Volcanoes, Earthquakes, Impact Craters, and Plate Tectonics
This seismic activity is used by scientists to monitor volcanoes. [2] The earthquakes may also be related to dike intrusion and/or occur as earthquake swarms. [3] Usually they are characterised by high seismic frequency and lack the pattern of a main shock followed by a decaying aftershock distribution of fault related tectonic earthquakes. [2 ...
Map of Earth's plate boundaries and active volcanoes More detailed map showing volcanoes active in the last 1 million years These lists cover volcanoes by type and by location. Type
Name Elevation Location Last eruption meters feet Coordinates; Malumalu: Last 8,000 years Ta‘u-931: 3054: 30,000 years ago [15]: Ofu-Olosega: 639: 2096: 1866 unnamed submarine cone eruption
Map of the Garibaldi Volcanic Belt centers. The Garibaldi Volcanic Belt in southwestern British Columbia is the northern extension of the Cascade Volcanic Arc in the United States and contains the most explosive young volcanoes in Canada. Like the rest of the arc, it has its origins in the Cascadia subduction zone.
Map of the Central American volcanic arc, with captions showing the location of several volcanoes – in the Mexico/Guatemala border: Tacaná; in Guatemala: Tajumulco, Santa Maria, Chicabal, Tolimán, Atitlán, Volcán de Fuego, Volcán de Agua, Pacaya, Chingo; in El Salvador: Apaneca Range, Chinchontepec or San Vicente, Chaparrastique or San Miguel, Chinameca and Conchagua; in Nicaragua ...
Earthquakes often occur in volcanic regions and are caused there, both by tectonic faults and the movement of magma in volcanoes. Such earthquakes can serve as an early warning of volcanic eruptions, as during the 1980 eruption of Mount St. Helens. [23]