Springwater chemical anomalies prior to the Mw = 7.2 Van Earthquake (Turkey)

• INAN SEDAT

  TÜBITAK Marmara Research Center, Earth and Marine Sciences Institute

• BALDERER WERNER PAUL

  ETHZ, Engineering Geology

• LEUENBERGER-WEST FANNY

  ETHZ, Engineering Geology

• YAKAN HAKAN

  TÜBITAK Marmara Research Center, Earth and Marine Sciences Institute

• ÖZVAN ALI

  Van 100. Yil University, Department of Geology

• FREUND FRIEDEMANN T.

  NASA Ames Research Center, Earth Science Division Carl Sagan Center, SETI Institute Department of Physics, San Jose State University

書誌事項

タイトル別名

• Springwater chemical anomalies prior to the <i>Mw</i> = 7.2 Van Earthquake (Turkey)

抄録

We performed chemical analyses of commercially bottled spring water (EREK Spring water) emanating from a location less than 20 kilometer from the epicenter of the Mw = 7.2 Van Earthquake of October 23rd 2011. The available water samples cover the period from September 8th 2011 to January 11th 2012. The pre-earthquake anomaly is characterized by a slight but clear increase in Ca²⁺, Mg²⁺, K⁺ and Cl^- contents and decrease in Na⁺ and SO₄^2- contents compared to the background. Post-seismic samples show decreasing trends in Ca²⁺, Mg²⁺, K⁺ and Cl^- and increasing trends in Na⁺ and SO₄^2-. All ion concentrations reach stability approximately one month after the earthquake. These results indicate that spring water chemical anomalies may be monitored as potential geochemical pre-earthquake indicators.

収録刊行物

• ＧＥＯＣＨＥＭＩＣＡＬ　ＪＯＵＲＮＡＬ

  ＧＥＯＣＨＥＭＩＣＡＬ　ＪＯＵＲＮＡＬ 46 (1), e11-e16, 2012

  一般社団法人日本地球化学会

キーワード

• geochemical anomalies
• spring water
• earthquake precursors
• Van
• Turkey

詳細情報

• CRID: 1390282679530324352
• NII論文ID: 10031146305
• NII書誌ID: AA00654975
• DOI: 10.2343/geochemj.1.0159
• ISSN: 18805973
• ISSN: 00167002
• NDL書誌ID: 024183973
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I024183973
• 本文言語コード: en
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