2018иԇ俼~RP(gun)
earthquake
isoseismal line
seismic wave
earthquake predictionA(y)(bo)
seismic focus Դ
focal depth,epicentral intensity Դ
epicenter
mainshock
aftershock
seismograph x
magnitude (j)
seismology W(xu)
seismic belt W(xu)
seismogram D