The breach in the f flank did not originate at once, but in several phases. At the time the though liquid lava looked for a way to the surface, she found the former entrances janned. The canal, through which the lava of the W plug came up and which during aruption erupti phase of 1920 21 still served as way out, was closed now. During the rest period of a few years, the lava han been actually s…
By the paroxismal phenomena on December 18 and 19, 1930 in the W wall of the mountain summit a breach originated with a length of 1350 π. This reached an elevation of 2150 a downwards and near the summit it was about 200 m in width. A big part of the old domes on the summit, including the lavastream of 1922 has disappeared.
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.
The self potential is the one of the family of electrical methods it is the oldest of the geophysical techniques On Indonesian volcanoes the Self method began to carry out since 1978, under the cooperation between the French and the Indonesia team at Merapi volcano.
Dalam tahun anggaran 1987/1988, Proyek Pengamatan/Pengawasan Gunungapi dan Penyuluhan Vulkanologi melakukan pemasangan radiotele-seismograph (RTS) di G> Ijen atau lebih dikenal dengan nama Kawah Ijen, Jawa Timur termasuk wilayah Kabupaten Banyuwangi.
Dalam Pelita IV tahun ketiga (1986 - 1987), Tim Pemetaan Daerah Bahaya Gunungapi Proyek Pemetaan Geologi Gunungapi (Seksi Penanggulangan Ba-haya, Sub Direktorat Pemetaan Gunungapi) melakukan pemetaan ulang Daerah Bahaya G. Semeru.
Latihan Satuan Petugas Sosial Penanggulangan Bencana Alam Propinsi Jawa Tengah diselenggarakan oleh Kantor Wilayah Departemen Sosial Propinsi Jawa Tengah, selaku pelaksana Kantor Departemen Sosial Kabupaten Banjarnegara, latihan tersebut diikuti oleh 40 peserta dari empat (4) Kabupaten yaitu Kabupaten Banjarnegara, Kabupaten Wonosobo, Kabupaten Batang dan Kabupaten Kendal.
Dalam rangka melaksanakan tugas pengamatan visual kegiatan G. Guntur, penulis berkesempatan melakukan tugas tersebut pada 14 Desember sampai dengan 18 Desember 1987 kan SPPD No. 833/0441/3402/87 dan diantar pengemudi dengan SPPD No. 834/0441/3402/87.
Gunung Gede terletak pada lembar peta topografi nomor 37/XXXXIX-B dan lokasi daerah yang diukur masih pada lembar yang sama, dengan posisi geografi 6 derajat 47' LS dan 106 derajat 59'