Deep Structure of the Yuzhno-Sakhalinsk Mud Volcano:Results of Multidisciplinary Seismic Surveys

摘要

The paper presents the results of multidisciplinary seismic surveys carried out by refraction andreflection methods for compressional and shear waves on Yuzhno-Sakhalinsk mud volcano. A large extinct(approximately 60-70 years ago) volcano was identified near the active volcano, and its structure was studied.It was found that the recognized intermediate fluid-bearing chambers correlate with the distinguished tectonicdislocations. A supposition was made that the mud volcanism is sequentially developed in the northeasterndirection and related to the modern tectonics of the Central Sakhalin Fault.