Deep structure of arc volcanoes as inferred from seismic observations

A. Hasegawa, A. Yamamoto, Dapeng Zhao, S. Hori, S. Horiuchi

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

Tomographic inversions for P-wave velocity clearly delineate low-velocity zones, which are inclined to the west and continuously distributed from the uppermost mantle to the upper crust beneath active volcanoes. Exceptionally deep (22-40km) microearthquakes are found at 10 locations around the low-velocity zones beneath active volcanoes. All these events have extremely low predominant frequencies, suggesting a closer relation to the magmatic activity in this depth range. At shallower depths (8-15km) distinct reflectors of S-waves from shallow events are found at five locations in or around the low-velocity zones. -from Authors

Original languageEnglish
Pages (from-to)167-178
Number of pages12
JournalPhilosophical Transactions - Royal Society of London, A
Volume342
Issue number1663
Publication statusPublished - 1992 Jan 1

ASJC Scopus subject areas

  • Mathematics(all)
  • Engineering(all)
  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Deep structure of arc volcanoes as inferred from seismic observations'. Together they form a unique fingerprint.

Cite this