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Earthquake Sounds From Aftershocks Following the 1986 May 20 Hualien Eqrthquake
Terrestrial, Atmospheric and Oceanic Sciences
A 24-hour continuous sound recording was made after the 1986 May 20 earth quake. During the 24 hour period, 25 aftershocks with a magnitude greater than 2 were recorded by a temporary seismographic network. Comparing the seismograms with the recorded sounds, we found that 5 of these aftershocks were accompanied by earthquake sounds, and all of these sounds preceded the P-wave arr ivals by 0.2 to 1.1 seconds. These 5 aftershocks possessed common characteristics of greater magnitude, shallowerdoi:10.3319/tao.1922.214.171.1241(t) fatcat:gbpazvkou5fpnmbpqxezuslogm