Dehydration and earthquakes in the subducting slab: Empirical link in intermediate and deep seismic zones

Soichi Omori, Tetsuya Komabayashi, Shigenori Maruyama

Research output: Contribution to journalArticle

85 Citations (Scopus)

Abstract

In this study, a close link between the depth-distribution of subduction-zone earthquakes and dehydration events in the hydrated slab-peridotite is established. A phase diagram up to 27 GPa in the MgO-Al2O3-SiO2-H2O (MASH) system was constructed using a combination of thermodynamic calculation and Schreinemakers analysis on previous experimental data. At intermediate-depths (

Original languageEnglish
Pages (from-to)297-311
Number of pages15
JournalPhysics of the Earth and Planetary Interiors
Volume146
Issue number1-2
DOIs
Publication statusPublished - Aug 16 2004
Externally publishedYes

Fingerprint

seismic zone
peridotite
dehydration
subduction zone
vertical distribution
slab
slabs
earthquakes
thermodynamics
diagram
earthquake
phase diagrams
calculation
analysis

Keywords

  • Deep focus earthquake
  • Dehydration
  • Earthquake
  • Phase relation
  • Subduction-zone

ASJC Scopus subject areas

  • Geophysics
  • Space and Planetary Science

Cite this

Dehydration and earthquakes in the subducting slab : Empirical link in intermediate and deep seismic zones. / Omori, Soichi; Komabayashi, Tetsuya; Maruyama, Shigenori.

In: Physics of the Earth and Planetary Interiors, Vol. 146, No. 1-2, 16.08.2004, p. 297-311.

Research output: Contribution to journalArticle

Omori, Soichi ; Komabayashi, Tetsuya ; Maruyama, Shigenori. / Dehydration and earthquakes in the subducting slab : Empirical link in intermediate and deep seismic zones. In: Physics of the Earth and Planetary Interiors. 2004 ; Vol. 146, No. 1-2. pp. 297-311.
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