Magnetic and electric field monitoring of Taal volcano, Philippines(Part 1)Magnetic measurements

• HARADA Makoto

  Center for Frontier Electronics and Photonics, Chiba University

• SABIT Julio P.

  Philippine Institute of Volcanology and Seismology

• SASAI Yoichi

  Disaster Prevention Division, Tokyo Metropolitan Government

• ALANIS Paul K. B.

  Philippine Institute of Volcanology and Seismology

• CORDON Jr. Juan M.

  Philippine Institute of Volcanology and Seismology

• CORPUZ Ernesto G.

  Philippine Institute of Volcanology and Seismology

• ZLOTNICKI Jacques

  Observatoire de Physique du Globe de Clermont-Ferrand

• NAGAO Toshiyasu

  Institute of Oceanic Research and Developments, Tokai University

• PUNONGBAYAN Jane T.

  Philippine Institute of Volcanology and Seismology

書誌事項

タイトル別名

• Magnetic and electric field monitoring of Taal volcano, Philippines Part I: Magnetic measurements

抄録

We have started electromagnetic (EM) monitoring of Taal volcano, Philippines. Taal is a basaltic-andesite volcano which has many eruption histories and is close to Metro Manila. On Taal, various geophysical and geochemical observations have been conducted by the government basis, but not the EM monitoring. A cooperative project for EM studies between PHIVOLCS and EMSEV/IUGG has been started. Measurements of total magnetic field (TMF), self-potential (SP), ground temperature and carbon dioxide degassing were made during the first survey in January 2005. Distinct anomalies in TMF and SP were found in the geothermal areas in Taal. Repeated survey in February detected changes in TMF up to a few tens of nT and enhancement of positive SP anomaly during the one and half-months period, when the surface geothermal activities were high. We believe that the combination of mechanical and electromagnetic measurements is uniquely effective in deciphering the volcanic activity.<br> <br> <br> (Communicated by Seiya UYEDA, M.J.A.)<br>

収録刊行物

• Ｐｒｏｃｅｅｄｉｎｇｓ　ｏｆ　ｔｈｅ　Ｊａｐａｎ　Ａｃａｄｅｍｙ．　Ｓｅｒ．　Ｂ：　Ｐｈｙｓｉｃａｌ　ａｎｄ　Ｂｉｏｌｏｇｉｃａｌ　Ｓｃｉｅｎｃｅｓ

  Ｐｒｏｃｅｅｄｉｎｇｓ　ｏｆ　ｔｈｅ　Ｊａｐａｎ　Ａｃａｄｅｍｙ．　Ｓｅｒ．　Ｂ：　Ｐｈｙｓｉｃａｌ　ａｎｄ　Ｂｉｏｌｏｇｉｃａｌ　Ｓｃｉｅｎｃｅｓ 81 (7), 261-266, 2005

  日本学士院

キーワード

• Electromagnetics
• volcanoes
• total magnetic field
• hydrothermal system
• thermal demagnetization
• hazard mitigation

詳細情報

• CRID: 1390282679123276416
• NII論文ID: 130000093791
• NII書誌ID: AA00785485
• DOI: 10.2183/pjab.81.261
• ISSN: 13492896
• ISSN: 03862208
• NDL書誌ID: 7740969
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7740969
• Web Site: https://www.jstage.jst.go.jp/article/pjab/81/7/81_7_261/_pdf
• 本文言語コード: en
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