Seismicity continued at a low level during June, and no glowing clouds were observed. The number of rockfalls from the lava dome decreased; they traveled a maximum distance of 1800 meters from the active part of the dome. No significant change was observed in the frequency of multi-phase earthquakes, which remained low. Repeated photography on June 28 and 29 showed that the flow rate and extrus…
This report concerns magnetic fields measurements exclusively. It is a continuation of the 1977 report on the same subject. In the field, a number of scientists were involved, under mutually encouraging conditions.
A number of important phones of the investigation of te Idjen Crater Lake as a source of Eynsu and other chemicals have beon, or will shortly be completed. In view of this and since the writer shall be leaving Indonesia on April 8th for a reriod of four monthn, this opportunity is taken to bring the Bank Indistri Negara up to date on the present status of the vork on the Idjen Crater Lake project.
By decree of the Director of Government enterprises dated 2 October 1914, 12011, to undersigned was instructed to undertake a business trip in order to carry out a closer investigation of the sulfur occurrence in the by Government decree reserved part of the Residency of Besuki, also t collect data for preparation of an eventual exploitation of the sulfur.
The 1989 International Association of Volcanology and Chemistry of the of the Earth's Interior (IAVCEI) General Assembly was held in Santa Fe, New Mexico, 17 June -4 July 1989. Three of IAVCEI programs which I chose comprised the field excursion to Mt. St. Helens, Washington (25 June 1989); the IAVCEI conference at Sante Fe, New Mexico (25 June - 1 July 1989); and a short course of volcanic ha…