The lamongan is not known by big destroying catastrophes such as the Tambora and Krakatau, but as far as the news reach us, he is however one of the most active volcanoes on Jawa.
Secara fisiografi, Pegunungan Dieng menempati Zona Pegunungan Serayu Uta- ra di bagian timur, merupakan rangkaian dengan Pegunungan Jembangan yang terletak di sebelah utara daerah Karangkobar. Pegunungan tersebut dibangun oleh tubuh-tubuh gunungapi yang terbentuk dalam zaman Kwarter, di beberapa tempat diselangi oleh kehadiran dataran- tinggi yang terbentuk pada daerah depresi dan cekungan anta…
n January gas explosions often occurred, ejecting incandescent lava fragments, while eruption clouds rose 1 kilometer above the summit. From Argosuko Obs. (S) reddish glares on the peak of the lava dome could be often observed, while from Gunung Sawur (ESE) and Tawonso ngo (ENE) Observatories they were seen only a few times.
Even though Indonesia is rich in volcanoes (128 are considered active) and abundant rainfall (annual rainfall figures of ovar 2000 tum are no exemptions), very little research work has been done thus far as regards their imli cations on surface drainage; many quantitative data are sit needed. By using the case of it. Kolut and the Biantas river, due attention is asked towards more systematic…