Mount Lamongan 1670 m above sea level is located in the regencies of lumajang and Probolinggo, Fast Java. Geographically it lies between Latitudes 7°46'23' to 8°8'3" South and Longitudes 113°13'20" to 113°23' East. It covers the area of about 1000 square kilometers. This volcano is surrounded by other two big volcanoes, they are Mount Iyang Argopuro on the East and Mount Tengger-Bromo on th…
The summit crater of Mt. Kelut, an andesitic volcano in East Java Indonesia, normally contains a lake with surface temperatures varying from 31 to 36 centigrade around inlet.
The The geophysical investigations of Mt. Kelud began to apply in 1978, initially with emphasis on geomagnetic survey. instrument used was the 595 Type Elsec Magnetometer with an accuracy of 18.
This Volcano is known as very dengerous, because its eruptions always caused victims and destroyed of arable land. The origin of the disaster because its has a crater lake on its summit, which is in ejected during each eruption.
Since the end of the 1982 - 1983 eruption of Galunggung volcano, west Java, a large and growing lake has formed within the 1982 - 1983 crater. The volume of this lake in July 1986 is approximately 6.1 million cubic meters of water. This water is accumulating at a rate of approximately 2.6 million cubic meters per year.
The continuous eruptions of Mt. Galunggung will create problems for the inhabitants in the disaster area and its surroundings, mostly in West Java. From the perspective of development, each disaster, particularly the Galunggung disaster, is a constraint to development. Above all, disasters destroy the "results of development", using up large amounts of manpower, expertise and funds.
Efforts to deal with the Mt. Galunggung disaster should mobilize the potential of all people concerned for preventive and preparedness actions. At the village level the potential of all people should be effectively co-ordinated and used to save and protect human lives, property and sources of livelyhood.
Mount Galunggung, recently considered inactive, had 36 and 300 minor erruptions between 5 April and 20 September 1982. A large, heavily populated and generally prosperous area has been severely affected; it will suffer still greater damage in future rainy seasons. Exceptional counter-measures have been taken and are yet called for.
The objective of the excursion to G. Galunggung was a preliminary observation of the present state of volcanic activity and to see if there was a possibility to approach near to the new crater.
Volcanoes with an entirely different character, which frequently caused gigantic destructions, are those which outbursts wen acampamied by wedusgembel.