Pressure sources of the Miyakejima volcano estimated from crustal deformation studies during 2011–2013

Miyo Fukui, Takeshi Matsushima, Natsumi Yumitori, Jun Oikawa, Atsushi Watanabe, Takashi Okuda, Taku Ozawa, Yuhki Kohno, Yousuke Miyagi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Following the eruption of the Miyakejima Volcano in the Izu Islands, Japan, in the year 2000, a continuous GPS network observed the ongoing contracting crustal deformation. Subsequently, a slight inflation of the island was detected from around 2006, and we initiated a campaign of dense GPS observations around the volcano from 2011. Precise crustal deformation studies indicated inflation in the southern part of the island and deflation around the center of the crater. Using these observations, we estimated that three magma sources (a shallow deflation sill under the crater, a southern inflation dyke, and a deep inflation spherical source) were activated during 2011–2013. In particular, the presence of an inflation dyke at an intermediate depth had not been inferred by previous studies. Accordingly, we posit that the supply of magma from a deep spherical source to the new dyke source has been initiated only recently.

Original languageEnglish
Title of host publicationInternational Symposium on Geodesy for Earthquake and Natural Hazards (GENAH) - Proceedings of the International Symposium on Geodesy for Earthquake and Natural Hazards (GENAH)
EditorsManabu Hashimoto
PublisherSpringer Verlag
Pages117-123
Number of pages7
ISBN (Print)9783319397672
DOIs
Publication statusPublished - Jan 1 2017
EventProceedings of the International Symposium on Geodesy for Earthquake and Natural Hazards, GENAH 2014 - Matsushima, Japan
Duration: Jul 22 2014Jul 26 2014

Publication series

NameInternational Association of Geodesy Symposia
Volume145
ISSN (Print)0939-9585

Other

OtherProceedings of the International Symposium on Geodesy for Earthquake and Natural Hazards, GENAH 2014
CountryJapan
CityMatsushima
Period7/22/147/26/14

All Science Journal Classification (ASJC) codes

  • Computers in Earth Sciences
  • Geophysics

Fingerprint Dive into the research topics of 'Pressure sources of the Miyakejima volcano estimated from crustal deformation studies during 2011–2013'. Together they form a unique fingerprint.

  • Cite this

    Fukui, M., Matsushima, T., Yumitori, N., Oikawa, J., Watanabe, A., Okuda, T., Ozawa, T., Kohno, Y., & Miyagi, Y. (2017). Pressure sources of the Miyakejima volcano estimated from crustal deformation studies during 2011–2013. In M. Hashimoto (Ed.), International Symposium on Geodesy for Earthquake and Natural Hazards (GENAH) - Proceedings of the International Symposium on Geodesy for Earthquake and Natural Hazards (GENAH) (pp. 117-123). (International Association of Geodesy Symposia; Vol. 145). Springer Verlag. https://doi.org/10.1007/1345_2015_150