Seismo-acoustic noise (ASP) Land cover a range of frequencies from kHz to a few hundredths of Hz. As the noise frequency composition can be divided into low-frequency seismic (low-frequency microseisms), high-frequency seismic (microseisms in the range up to tens of Hz) and acoustic (from tens of Hz to several kHz). The noise in the range of frequencies called vzaimnoperekryvaemyh seismoacoustic.