Running spectra of the seismic record. The total record length is 100s. The window length is 10s.
At Karymsky volcano, some explosions are followed by harmonic tremors, which are corresponding to intermittent sounds. In such cases, harmonic infrasonic waves are observed. These figures show running spectra diagrams that are calculated from the records obtained at a station 1.5km SE from the summit active crater.
Running spectra of the seismic record. The total record length is 100s. The window length is 10s.
Running spectra of the infrasonic record. The total record length is 100s. The window length is 10s.