The Hiroshi Wakita Volume I is a collection of original papers regarding the role of terrestrial fluids in earthquake and volcanic processes. The importance of monitoring volcanic gases for studying volcanic eruptions is widely recognized by the scientific community. On the other hand, the usefulness of hydrological and geochemical monitoring in earthquake studies, especially in earthquake prediction, has been controversial. This Pure and Applied Geophysics volume provides the results of some of the most recent studies on terrestrial fluids involved in both processes. The volume honores Hiroshi Wakita for his scientific contributions. Volume II will be published later in 2006. Both volumes should be useful to researchers and graduate students in the field.
