An invitation issued by Unesco under the Volcanologist Exchange Programme has given opportunity to the authors to visit Mayon Volcano, South Luzon, The Philippines, which was reported to have shown an increasing activity early May this year. The first increasing volcanic phenomenon was observed on May 3, and harmonic tremors were recorded the following days. The precaution measures have then be…
Dalam rangka mengevaluasi kegiatan G. Gamalama telah dilakukan peninjauan oleh Direktur Jenderal Geologi dan Sumberdaya Mineral dan Kami sendiri ke lokasi pada tanggal 3 sampai 7 Maret 1988.