Atmospheric Pressure Waves Generated from Large Earthquakes, Tsunamis and Large Volcanic Eruptions

Abstract

This report reviews various studies on atmospheric pressure waves that have been generated from large earthquakes, tsunamis, and large-scale volcanic eruptions. These waves described here include low-frequency acoustic and gravity waves (0.0008∼ 0.0166 Hz or its period 1∼ 20 min) and high to medium frequency (› 0.0166 Hz or its period‹ 1 min) infrasonic air-waves. The low-frequency acoustic-gravity waves came from coseismic vertical ground deformation associated with two megathrust earthquakes, and sometimes …