We installed 5 seismic stations around Karymsky volcano. At No.1 station, a CMG-3T broadband seismograph was installed; at the other stations, SM-3 short period seismographs were installed. The seismic signals were recorded by DATAMARK of Hakusan corporation LS-8000WD (100Hz sampling) at No.1-4 stations and by LS-8000SH (50Hz sampling) at No.5. WDs can record continuous digital seismic data. The SH was operated with a triggering system. The infrasonic observation with a low frequency microphone (ACO 7144/3348) was carried out at No.1 and No.5.
Seismic stations installed in the joint observation