1. Introduction

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   OriginalPaper Pages: 629 - 631

2. Earthquake-induced Groundwater and Gas Changes

   • Chi-Yu King
   • Wei Zhang
   • Zhaocheng Zhang

   OriginalPaper Pages: 633 - 645

3. Groundwater-level Changes Due to Pressure Gradient Induced by Nearby Earthquakes off Izu Peninsula, 1997

   • Masao Ohno
   • Tsutomu Sato
   • Kunio Ozawa

   OriginalPaper Pages: 647 - 655

4. Detection of Aseismic Slip on an Inland Fault by Crustal Movement and Groundwater Observations: A Case Study on the Yamasaki Fault, Japan

   • Yuichi Kitagawa
   • Naoji Koizumi
   • Satoshi Itaba

   OriginalPaper Pages: 657 - 673

5. Hydrogeochemical Anomalies in the Springs of the Chiayi Area in West-central Taiwan as Possible Precursors to Earthquakes

   • S. R. Song
   • W. Y. Ku
   • M. Lee

   OriginalPaper Pages: 675 - 691

6. Seismo-Geochemical Variations in SW Taiwan: Multi-Parameter Automatic Gas Monitoring Results

   • T. F. Yang
   • C.-C. Fu
   • C.-C. Lin

   OriginalPaper 28 March 2006 Pages: 693 - 709

7. Radon Precursory Signals for Some Earthquakes of Magnitude > 5 Occurred in N-W Himalaya: An Overview

   • Vivek Walia
   • Hardev Singh Virk
   • Bikramjit Singh Bajwa

   OriginalPaper Pages: 711 - 721

8. Modelling the Mixing Function to Constrain Coseismic Hydrochemical Effects: An Example from the French Pyrénées

   • Jean-Paul Toutain
   • Margot Munoz
   • Jocelyne Escalier

   OriginalPaper Pages: 723 - 744

9. Geographical Distribution of ³He/⁴He Ratios in the Chugoku District, Southwestern Japan

   • Yuji Sano
   • Naoto Takahata
   • Tetsuzo Seno

   OriginalPaper 28 March 2006 Pages: 745 - 757

10. Geochemistry of the Submarine Gaseous Emissions of Panarea (Aeolian Islands, Southern Italy): Magmatic vs. Hydrothermal Origin and Implications for Volcanic Surveillance

    • Giovanni Chiodini
    • Stefano Caliro
    • Guido Ventura

    OriginalPaper 28 March 2006 Pages: 759 - 780

11. Chemical and Isotopic Composition of Waters and Dissolved Gases in Some Thermal Springs of Sicily and Adjacent Volcanic Islands, Italy

    • Fausto Grassa
    • Giorgio Capasso
    • Salvatore Inguaggiato

    OriginalPaper Pages: 781 - 807

12. Geochemical Changes in Spring Water Associated with the 2000 Eruption of the Miyakejima Volcano, Japan

    • Tsutomu Sato
    • Isao Machida
    • Taro Nakamura

    OriginalPaper Pages: 809 - 823

13. Monitoring Quiescent Volcanoes by Diffuse CO₂ Degassing: Case Study of Mt. Fuji, Japan

    • Kenji Notsu
    • Toshiya Mori
    • Takamori Ito

    OriginalPaper Pages: 825 - 835

14. Puhimau Thermal Area: A Window into the Upper East Rift Zone of Volcano, Hawaii?

    • K. A. McGee
    • A. J. Sutton
    • T. M. Gerlach

    OriginalPaper 28 March 2006 Pages: 837 - 851

15. Fault-controlled Soil CO₂ Degassing and Shallow Magma Bodies: Summit and Lower East Rift of Kilauea Volcano (Hawaii), 1997

    • Salvatore Giammanco
    • Sergio Gurrieri
    • Mariano Valenza

    OriginalPaper Pages: 853 - 867

16. Diffuse Emission of CO₂ from Showa-Shinzan, Hokkaido, Japan: A Sign of Volcanic Dome Degassing

    • Pedro A. Hernández
    • Kenji Notsu
    • Nemesio M. Pérez

    OriginalPaper Pages: 869 - 881

17. Anomalous Diffuse CO₂ Emission prior to the January 2002 Short-term Unrest at San Miguel Volcano, El Salvador, Central America

    • Nemesio M. Pérez
    • Pedro A. Hernández
    • Dina L. López

    OriginalPaper Pages: 883 - 896

18. In situ Permeability Measurements Based on a Radial Gas Advection Model: Relationships Between Soil Permeability and Diffuse CO₂ Degassing in Volcanic Areas

    • Marco Camarda
    • Sergio Gurrieri
    • Mariano Valenza

    OriginalPaper Pages: 897 - 914