Selama pelawatan Sdr. S.Hamidi da penulis karangan ini dalam bulan Januari-Maret 1969 ke Maluku utara memenuhi permintaan Bupatinja untuk menindjau G.Kie Besi dipulau Makian, para petugaspun telah diminta untuk melakukan pernindjauan ke G.Gamkonora di Halmahera.
The purpose of this book is to describe ways in which direct and indirect hazards from future volcanic eruptions can be assessed and their locations shown on maps so as to prevent or reduce loss of life and property damage. The guidelines presented here for volcanic-hazard assessments and volcanic hazards zonation emphasize principles that can be applied to volcanoes throughout the world, rathe…