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中国东北因滨临太平洋火山带,受太平洋海底扩张与欧亚大陆板块碰撞之影响,自6000多万年前的新生代早期开始,先后共发生了15期火山活动,直至200多年前仍然有火山喷发。受北东、北北东向断裂带之制约,形成了9条火山带、40多个火山群,共有火山锥体800余座和面积达5万多平方公里的熔岩、火山碎屑岩,占据了全国火山总数的百分之八十。
Due to the influence of the coastline of the Pacific Ocean to the Pacific Ocean in northeastern China, 15 volcanic activities occurred successively since the early Cenozoic more than 6000 million years ago due to the impact of the Pacific Ocean seafloor expansion and the Eurasian Plate. Until about 200 years ago, volcanoes still existed Eruption. Subject to the constraints of the NE and NE-E faults, 9 volcanic belts and more than 40 volcanic groups have been formed. Over 800 volcanic cones and lava and volcaniclastic rocks occupy a total area of over 50,000 square kilometers Eighty percent of the country’s volcanoes.