Quaternary tectonics in central Kyushu and the 2016 Kumamoto Earthquake

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  • 九州中部の第四紀テクトニクスからみた熊本地震
  • キュウシュウ チュウブ ノ ダイシキ テクトニクス カラ ミタ クマモト ジシン

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Abstract

<p>The 2016 Kumamoto Earthquake sequence with magnitude 6.5 (April 14) and magnitude 7.3 (April 16) brought severe damage in the central Kyushu area. Here, the outline of the earthquake and the related Quaternary tectonics in central Kyushu area are introduced and summarized from the viewpoint of geophysical and geological studies. Especially, the distribution of active faults in Kyushu (right-lateral strike-slip activity of the Median Tectonic Line, densely distributed E-W-trending normal faults associated with volcanic activity in the central region, and strike-slip activity of the Futagawa and Hinagu faults in western Kyushu) provides us with significant information on the relationship between the 2016 Kumamoto earthquake and the Quaternary tectonics in central Kyushu.</p>

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