The Founders of Seismology

afterwards annual Bull catalogue cause central centre century close coast Committee contains contributed curves depth described destructive detail determined direction distance distribution district disturbed earth earthquakes effects epicentre eruptions evidence feet felt fire focus four frequency Geol geology give given horizontal important increased intensity interest interval island Italy Japan Japanese July known later less lines lists Mallet maximum mean measurements memoir Mercalli method Michell miles Milne Montessus months motion movements nature nearly notes notices observations observatory occurred Omori origin period Perrey phenomena places principal probably professor published quakes recorded referred regarded regions remarkable scale seems Seis seismic seismograph seismology shocks shows Society stations strong third Tokyo Trans various vibrations volcanoes volume waves whole widely