Terrestrial Fluids, Earthquakes and Volcanoes: the Hiroshi Wakita Volume II

Introduction (N. M. Pérez, S. Gurrieri, C.-Y. King, Y. Taran).- 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).- Earthquake-related changes in groundwater levels at the Dogo hot spring, Japan (S. Itaba, N. Koizumi).- 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).- Precursory subsurface 222Rn and 220Rn degassing signatures of the 2004 seismic crisis at Tenerife, Canary Islands (N. M. Pérez, P. A. Hernández, E. Padrón, G. Melián, R. Marrero, G. Padilla, J. Barrancos, D. Nolasco).- Soil H2 and CO2 surveys at several active faults in Japan (T. Dogan, T. Mori, F. Tsunomori, K. Notsu).- Diffuse emission of H2 from Poás volcano, Costa Rica, CentralAmerica (G. V. Melián, I. Galindo, N. M. Pérez, P. A. Hernández, M. Fernández, C. Ramírez, R. Mora, G. E. Alvarado).- 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. López, B. Henriquez, A. Hernández, E. Benitez, P. A. Hernández, N. M. Pérez, Bo Galle).- Crater lake temperature changes of the 2005 eruption of Santa Ana volcano, El Salvador, Central America (P. A. Hernández, N. M. Pérez, J. C. Varekamp, B. Henriquez, A. Hernández, J. Barrancos, E. Padrón, D. Calvo, G. Melián).- Temporal variability of major and trace elements 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).- Continuous Direct Gas-Geochemical Monitoring in Hydrothermal Vents: Installation andLong-Term Operation on Nisyros Island (Greece) (M. Teschner, E. Faber, J. Poggenburg, G. E.