ChileSmile activity in Chile is related to subduction of the NazcaPlate to the east. Chile has the record for the biggestearthquake ever recorded. This earthquake is the 1960 Valdiviaearthquake. Villarrica, one of Chilles most active volcanoes,rises above Villarrica Lake and the town of Villarrica. It is thewesternmost of three large startovolcanoes that trendperpendicular to the Andean chain. A 6-km wide calderaformed during the late Pleistocenem 0.9 million years ago.
BoliviaThe country of Bolivia hosts numerous active and extinctvolcanoes across its territory. The active volcanoes are locatedin western Bolivia making up the Cordillera Occidetal, thewestern limit of the Altiplano plateau. Many of the activevolcanoes of Bolovia are part of the Central Volcanic Zone ofthe Andean Volcanic Belt that results due to processes involvedin the subduction of Nazca Plate under the South AmericanPlate. The Central Volcanic Zone is a major upper Cenozoicvolcanic province. Apart from Andean volcanoes the geology ofBolivia host the remants of ancient vocanoes around thePrecambrian Guapore Shield in the eastern part of the country.
MexicoVolcanoes of Mexico are related to subduction of the Cocosand Rivera plates to the east, which has produced largeexplosive eruptions. Most active volcanoes in Mexico occur inthe Trans Mexican Volcanic Belt, which extends 900 kilometresfrom west to east across central-southern Mexico. A few otheractive volcanoes in northern Mexico are related to extensionaltectonics of the Basin and Range Province, which split the BajaCalifornia peninsula from the mainland.
CanadaBritish Columbia and Yukon are bast regions of volcanoesand vast regions of volcanoes and volcanic activity in thePacific Ring of Fire. Several mountains that many BritishColumbians look at every day are dormant volcanoes. Most ofthem have erupted during the Pleistocene and Holocene.Although none of Canadas volcanoes are currently erupting,several volcanoes, volcanic fields and volcanic centers areconsidered potentially active.
JapanThe percent of the worlds active volcanoes are found in Japan,which lies in a zone of extreme crustal instability. They areformed by subduction of the Pacific Plate and the PhilippineSea Plate. As many as 15,000 earthquakes are recordedyearly, and magnitudes of four to six on the Richter scale arenot uncommon. Minor tremors occur almost daily in one part ofthe country or another, causing slight shaking of buildings.Major earthquakes occur infrequently. The most famous in thetwentieth century were the Great Kanto earthquake of 1923 andGreat Hanshin earthquake. On March 11, 2011 a magnitude9.0 Earthquake hit Japan. This earthquake is the biggest everin Japan.