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1950 Assam–Tibet earthquake : ウィキペディア英語版 | 1950 Assam–Tibet earthquake
The 1950 Assam–Tibet earthquake,〔(【引用サイトリンク】title=Historic Earthquakes, Assam - Tibet )〕 also known as the Assam earthquake〔 or Medog earthquake, occurred on August 15, the third Independence Day of India and had a moment magnitude of 8.6. The epicentre was located near Rima, Tibet. The earthquake was destructive in both Assam and Tibet, and between 1,500 and 3,300 people were killed. It was the 10th largest earthquake of the 20th century. It is also the largest known earthquake to have not been caused by an oceanic subduction. Instead, this quake was caused by two continental plates converging. == Geology == In an attempt to further uncover the seismic history of Northeast India, field studies were conducted by scientists with the National Geophysical Research Institute and Institute of Physics, Bhubaneswar. The study discovered signs of soil liquefaction including sills and sand volcanoes inside of at least twelve trenches in alluvial fans and on the Burhi Dihing River Valley that were formed by past seismic activity. Radiocarbon dating identified the deposits at roughly 500 years old, which would correspond with a recorded earthquake in 1548.
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