Transition zone thickness beneath Indonesia as inferred using the receiver function method for data from the JISNET regional broadband seismic network

Tomoharu Saita, Daisuke Suetsugu, Toshiki Ohtaki, Hiroshi Takenaka, Kenji Kanjo, Ibnu Purwana

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

We analyzed broadband waveforms recorded by the newly deployed Japan-Indonesia Seismic Network to determine the depths of the 410 km and 660 km discontinuities and thickness of the mantle transition zone beneath Indonesia by the receiver function method. The discontinuities have an undulation with a maximum difference of 40 km with respect to the Iasp91 model. The thickness of the transition zone is well correlated with seismicity and seismic velocity anomalies, suggesting that the topography is caused by temperature anomalies associated with the subducted slabs beneath Indonesia.

Original languageEnglish
Pages (from-to)19-1-19-4
JournalGeophysical Research Letters
Volume29
Issue number7
DOIs
Publication statusPublished - Apr 1 2002
Externally publishedYes

ASJC Scopus subject areas

  • Geophysics
  • Earth and Planetary Sciences(all)

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