Scaling law of volcanic explosion earthquake

Takeshi Nishimura, Hiroyuki Hamaguchi

研究成果: Article査読

30 被引用数 (Scopus)

抄録

The aim of the present study is to clarify a scaling law for volcanic explosion earthquakes excited by a counter force of eruption. Based on the data of explosion earthquakes at three volcanoes, we derived the following results: The peak amplitude of the single force is proportional to the square of the pulse width of source time function. The initial pressure stored in a shallow region beneath a volcano before eruption is 1 MPa with a perturbation of one order. The kinetic energy of explosion earthquake is proportional to the cube of crater radius. The scaling law of the explosion earthquake is quite similar to that of the earthquake caused by a faulting. It is possible to predict the strength of explosion earthquake by measuring the crater radius beforehand.

本文言語English
ページ(範囲)2479-2482
ページ数4
ジャーナルGeophysical Research Letters
20
22
DOI
出版ステータスPublished - 1993 11月 19

ASJC Scopus subject areas

  • 地球物理学
  • 地球惑星科学(全般)

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