Open Access

Seismic remote monitoring of stress field

  • Eiichi Fukuyama1Email author,
  • Atsuki Kubo1,
  • Hiroyuki Kawai1 and
  • Ken’ichi Nonomura1
Earth, Planets and Space201453:BF03351699

https://doi.org/10.1186/BF03351699

Received: 21 November 2000

Accepted: 21 August 2001

Published: 20 June 2014

Abstract

We demonstrate that a real-time based moment tensor analysis using broadband seismic waveforms provides us with the information about the spatio-temporal change of stress field. Such a capability is crucial when monitoring the volcanic activity during the eruption if it causes seismic swarm. We estimated the moment tensors of earthquakes occurring during the swarm activity before the eruption of Usu volcano in March 2000 as well as those during the swarm activity of Miyakejima volcano starting in June 2000. In both cases, we detected the stress change due to the movement of magma reservoir.