Pada Juni 1982, A. D. Wirasaputra dan saya melakukan pemeriksaan puncak dan pembuatan peta daeerah bahaya G. Beriti.
From the respeots of volcanostratigraphy, geology and petrography, major efforts were payed for field inspection of lavas, pyroclastics and pyroclastio flow deposit and for sampling for petrological and geochemical laboratory works.