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Geoelectric potential difference monitoring in southern Sumatra, Indonesia — Co-seismic change—

Earth, Planets and Space volume 52, pages 245–252 (2000)Cite this article

Abstract

Five geoelectric potential difference (electric field, here after) monitoring stations have been in operation since September 1997 in anarea near Liwa town, southern Sumatra, Indonesia, to examine the relationship between electric field changes and earthquakes. Short-term electric field variations were found to correspond mainly to geomagnetic activity, while long-term variation was mostly gradual shift and was clearly correlated neither precipitation nor ground water level variations. Co-seismic electric field changes ranging between 1 and 8 mV were observed for five mb > 5 earthquakes at multiple stations during September ∼ December 1997. The epicenters of the earthquakes were in the Indian Ocean within about 170 km from the monitoring sites.

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Author notes

  1. Wataru Kanda

    Present address: Sakurajima Volcano Research Center, Disaster Prevention Research Institute, Kyoto University, Sakurajima, Kagoshima, 891-1419, Japan

Authors and Affiliations

  1. Institute of Seismology and Volcanology, Graduate School of Sciences, Hokkaido University, Sapporo, 060-0810, Japan

    Toru Mogi

  2. Aso Volcanological Laboratory, Graduate school of Sciences, Kyoto University, Aso, Kumamoto, 869-1404, Japan

    Yoshikazu Tanaka

  3. Research and Development Center for Geotechnology, Indonesian Institute of Sciences, Bandung, 40184, Indonesia

    Djedi S. Widarto & Edy M. Arsadi

  4. Department of Geophysics and Meteorology, Bandung Institute of Technology, Bandung, 40225, Indonesia

    Nanang T. Puspito

  5. Earthquake Prediction Research Center, Tokai University, Shimizu, 424-0902, Japan

    Toshiyasu Nagao & Seiya Uyeda

  6. The Institute of Physical and Chemical Research (RIKEN), Shimizu, 424-0902, Japan

    Toshiyasu Nagao, Wataru Kanda & Seiya Uyeda

Authors
  1. Toru Mogi
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  2. Yoshikazu Tanaka
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  3. Djedi S. Widarto
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  4. Edy M. Arsadi
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  5. Nanang T. Puspito
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  6. Toshiyasu Nagao
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  7. Wataru Kanda
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  8. Seiya Uyeda
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Correspondence to Toru Mogi.

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Mogi, T., Tanaka, Y., Widarto, D.S. et al. Geoelectric potential difference monitoring in southern Sumatra, Indonesia — Co-seismic change—. Earth Planet Sp 52, 245–252 (2000). https://doi.org/10.1186/BF03351633

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  • DOI: https://doi.org/10.1186/BF03351633

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