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Terrestrial Fluids, Earthquakes and Volcanoes: the Hiroshi Wakita Volume II Terrestrial Fluids, Earthquakes and Volcanoes: The Hiroshi Wakita Volume II Edited by Nemesio M. Pérez Sergio Gurrieri Chi-Yu King Yuri Taran Birkhäuser Basel · Boston · Berlin Reprint from Pure and Applied Geophysics (PAGEOPH), Volume 164 (2007) No. 12 Editors: Nemesio M. Pérez Sergio Gurrieri Environmental Research Division Istituto Nazionale di Geofisica e Instituto Tecnológico y de Energias Vulcanologia Renovables Sezione di Palermo Polígono Industrial de Granadilla s/n V. Ugo La Malfa, 153 38611 Granadilla, Tenerife 90146 Palermo Canary Islands Italy Spain e-mail: [email protected] e-mail: [email protected] Yuri Taran Chi-Yu King Volcanology Department Earthquake Prediction Research, Inc Institute of Geophysics 381 Hawthorne Ave. UNAM Los Altos, CA 94022 3000, Av. Universidad USA Mexico D.F., 04510 e-mail: [email protected] Mexico e-mail: taran@geofisica.unam.mx Library of Congress Control Number: 2006043001 Bibliographic information published by Die Deutsche Bibliothek: Die Deutsche Bibliothek lists this publication in the Deutsche Nationalbibliografie; detailed bibliographic data is available in the Internet at <http://dnb.ddb.de> ISBN 978-3-7643-8719-8 Birkhäuser Verlag AG, Basel · Boston · Berlin This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, re-use of illustra- tions, recitation, broadcasting, reproduction on microfilms or in other ways, and storage in data banks. For any kind of use permission of the copyright owner must be obtained. © 2008 Birkhäuser Verlag AG Basel · Boston · Berlin P.O. Box 133, CH-4010 Basel, Switzerland Part of Springer Science+Business Media Printed on acid-free paper produced from chlorine-free pulp. TCF ∞ Printed in Germany ISBN 978-3-7643-8719-8 e-ISBN 978-3-7643-8720-4 9 8 7 6 5 4 3 2 1 www.birkhauser.ch PURE AND APPLIED GEOPHYSICS Vol. 164, No. 12, 2007 Contents 2373 Introduction N. M. Pe´rez, S. Gurrieri, C.-Y. King, Y. Taran 2377 Groundwater-level Anomalies Associated with a Hypothetical Preslip Prior to the Anticipated Tokai Earthquake: Detectability Using the Groundwater Observation Network of the Geological Survey of Japan, AIST N. Matsumoto, Y. Kitagawa, N. Koizumi 2397 Earthquake-related Changes in Groundwater Levels at the Dogo Hot Spring, Japan S. Itaba, N. Koizumi 2411 Flow Changes and Geochemical Anomalies in Warm and Cold Springs Associated with the 1992–1994 Seismic Sequence at Pollina, Central Sicily, Italy R. Favara, F. Grassa, P. Madonia, M. Valenza 2431 Precursory Subsurface 222Rn and 220Rn Degassing Signatures of the 2004 Seismic Crisis at Tenerife, Canary Islands N. M. Pe´rez, P. A. Herna´ndez, E. Padro´n, G. V. Melia´n, R. Marrero, G. Padilla, J. Barrancos, D. Nolasco 2449 Soil H2 and CO2 Surveys at Several Active Faults in Japan T. Dogan, T. Mori, F. Tsunomori, K. Notsu 2465 Diffuse Emission of Hydrogen from Poa´s Volcano, Costa Rica, America Central G. V. Melia´n, I. Galindo, N. M. Pe´rez, P. A. Herna´ndez, M. Ferna´ndez, C. Ramı´rez, R. Mora, G. E. Alvarado 2489 Anomalous Emissions of SO2 During the Recent Eruption of Santa Ana Volcano, El Salvador, Central America R. Olmos, J. Barrancos, C. Rivera, F. Barahona, D. L. Lo´pez, B. Henriquez, A. Herna´ndez, E. Benitez, P. A. Herna´ndez, N. M. Pe´rez, B. Galle 2507 Crater Lake Temperature Changes of the 2005 Eruption of Santa Ana Volcano, El Salvador, Central America P. A. Herna´ndez, N. M. Pe´rez, J. C. Varekamp, B. Henriquez, A. Herna´ndez, J. Barrancos, E. Padro´n, D. Calvo, G. V. Melia´n 2523 Temporal Variability of Major and Trace Element Concentrations in the Groundwaters of Mt. Etna (Italy): Effects of Transient Input of Magmatic Fluids Highlighted by Means of Cluster Analysis S. Giammanco, M. Ottaviani, E. Veschetti 2549 Continuous, Direct Gas-Geochemical Monitoring in Hydrothermal Vents: Installation and Long-Term Operation on Nisyros Island (Greece) M. Teschner, E. Faber, J. Poggenburg, G. E. Vougioukalakis, G. Hatziyannis Hiroshi Wakita was born in Nishinomiya (Hyogo, Japan) on September 29, 1936, and is actually an Emeritus Professor at The University of Tokyo (Japan). He graduated with B.Sc., M.Sc. and Ph.D. from Gakushuin University (Tokyo) in 1962, 1964 and 1968, respectively. He was a Research at the Japan Atomic Energy Research Institution, Tokyo (1964–68), Research Associate at Oregon State University, Corvallis, USA (1968– 71), Research Associate at the University of Tokyo (1971–77), Lecture at The University of Tokyo (1977–78), Associate Professor at The University of Tokyo (1978–86), Professor at The University of Tokyo (1986–97), and Professor at the Gakushuin Women’s College, Tokyo (1998–2007). He was also the Director of the Laboratory for Earthquake Chemistry at The University of Tokyo (1988–97), Associate Editor of Applied Geochemistry (1992–96), President of the Geochemical Society of Japan (1992–93), and Vice-president of the Geochemistry Research Association (1996). He received the Miyake Prize for his contribution on the field of geochemistry from the Geochemistry Research Association in 1989. Pure appl. geophys. 164 (2007) 2373–2375 Ó Birkha¨user Verlag, Basel, 2007 0033–4553/07/122373–3 Pure and Applied Geophysics DOI 10.1007/s00024-007-0289-1 Introduction Terrestrial Fluids, Earthquakes and Volcanoes: The Hiroshi Wakita Volume II is a special publication to honor Professor Hiroshi Wakita for his scientific contributions to science and to commemorate his 10th anniversary as Emeritus Professor at the University of Tokyo. The volume II consists of 10 original papers written by researchers from Japan, Germany, Italy, Costa Rica, Sweden, El Salvador, Turkey, USA, Greece, and Spain dealing with various aspects of the role of terrestrial fluids in earthquake and volcanic processes which reflect Prof. Wakita’s wide scope of research interests. The Pure and Applied Geophysics ‘‘Terrestrial Fluids, Earthquakes and Volcanoes: The Hiroshi Wakita Volume I’’ published 17 scientific contributions in May 2006, and the volume III will be published in January 2008. These Pure and Applied Geophysics Hiroshi Wakita volumes should be useful for active researchers in the subject field, and graduate students who wish to become acquainted with them. Professor Wakita founded the Laboratory for Earthquake Chemistry in April 1978 with the aim of establishing a scientific base for earthquake prediction by means of geochemical studies, and served as its director from 1988 until his retirement from the university in 1997. He has made the laboratory a leading world center for studying earthquakes and volcanic activities by means of geochemical and hydrological methods. Together with his research team and numerous foreign guest researchers that he attracted, he has made many significant contributions in the above-mentioned scientific fields of interest. This achievement is a testimony for not only his scientific talent, but also his enthusiasm, his openmindedness, and his drive in obtaining both human and financial support. The ten contributions of this volume II are arranged into two groups. The first group of five papers deals with movement and signatures of terrestrial fluids related to earthquakes. The first two papers are related to groundwater-level observations in Japan. The paper by MATSUMOTO et al. describes groundwater-level anomalies associated with a hypothetical preslip prior to the anticipated M8 Tokai earthquake, and evaluates the detectability of the anomalies using data from seven groundwater wells. The paper by ITABA and KOIZUMI analyzed groundwater-level data recorded at the Dogo hot spring, one of the oldest and most famous hot springs in Japan, immediately after the 1946 Nankai earthquake and during the period from 1985 to 2006. The following contribution is a paper by FAVARA et al. which describes the observed hydro-geochemical changes in warm 2374 N. M. Pe´rez et al. Pure appl. geophys., springs and cold discharges located in Central-Northern Sicily related to a moderate seismic activity. Poroelastic aquifer contraction, shaking-induced dilatancy theory as well as seismogenetic-induced changes in aquifers’ properties have been proposed as possible mechanisms for the observed changes. The paper by PE´ REZ et al. describes the detection of precursory geochemical signatures of radon degassing from a bubbling CO2-rich gas spot in the subsurface several months prior to the 2004 seismic crisis in Tenerife, Canary Islands (Spain). The material Failure Forecast Method was applied by the authors on this geochemical observation to forecast the largest seismic event of the crisis. The last earthquake-related contribution of this special volume is a paper by DOGAN et al. which describes diffuse H2 and CO2 degassing surveys performed along seven active faults and around the aftershock region of the 2000 Tottori-ken Seibu earthquake in Japan. This earthquake-related paper is then followed by five additional contributions dealing with observations related to volcanic processes. The paper by MELIA´ N et al. describes the use of diffuse H2 degassing surveys as a potential geochemical tool for the volcanic surveillance at Poa´s volcano (Costa Rica, Central America) after evaluating the results of the 2000–2003 monitoring period. The following paper by OLMOS et al. presents the observed anomalous SO2 emission values prior the 2005 eruption of Santa Ana volcano (El Salvador, Central America) which were recorded by a mini-DOAS (miniaturized - Differential Optical Absorption Spectroscopy) in a mobile-terrestrial position. Additional premonitory signatures of the recent eruption of Santa Ana volcano are described by HERNA´ NDEZ et al.’s paper through thermal infrared images of its summit crater. A significant increase in the extent and intensity of the fumarolic field inside the crater rim and of the surface temperature of the crater’s lake was observed prior to the 2005 eruption as well as changes in the estimated energy input. The following paper by GIAMMANCO et al.
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