Formation of earthquake faults by the fukushima hamadori earthquake and an estimation of displacement distribution around the faults using airborne LiDAR data

Shunsuke Shinagawa, Shuji Anan, Yasuhito Sasaki, Sakae Mukoyama, Shin Ichi Homma, Yoko Kobayashi

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

A series of earthquake faults was produced by the 2011 Fukushima Hamadori Earthquake (Mw 7.1), which broke out one month after the Great East Japan Earthquake. Two lines of earthquake faults appeared extending 30 km in length. They were inferred to be located partly on the active faults and partly on its extended line. The purpose of this presentation is to analyze these faults. We made use of a new method of airborne LiDAR data in the investigation of the displacement distribution by the earthquake. The results obtained fit generally well with the distribution data of net fault displacement produced by field investigation. Furthermore, the results suggest that the earthquake caused block tilting and land subsidence. Our new method makes available information difficult to obtain by the conventional method of field research of displacement distribution and it is useful for investigation immediately after the earthquake.

Original languageEnglish
Title of host publicationEngineering Geology for Society and Territory - Volume 6: Applied Geology for Major Engineering Projects
PublisherSpringer International Publishing
Pages167-171
Number of pages5
ISBN (Print)9783319090603, 9783319090597
DOIs
Publication statusPublished - 2015 Jan 1
Externally publishedYes

Keywords

  • Airborne lidar
  • Differential analysis
  • Earthquake fault
  • Fault displacement

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)
  • Engineering(all)
  • Environmental Science(all)

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