seismic activity of Mount Merapi, Center Java Province, in the last two days is tracked down, although since the beginning of February an increase in seismic activity is quite significant.
In the past two days, Merapi is very quiet. Seismic activity is not visible, although since the beginning of February occurs some significant increase in seismic.
Earthquake reached 35 times per day, and multiphase earthquakes recorded even up to 43 times per day, said the Head of Volcanic Investigation and Technological Development (BPPTK) Subandriyo, on Tuesday (2/21/12)
According to him, though at the beginning of February an increase in seismic activity and now have declined, it may still be considered normal given the mountain that located on the border of Central Java and Yogyakarta is an active volcano.
Increased seismic activity at the beginning of February which was then followed by a decline activity since the last two days, further Subandriyo, is possible because of the gas release prosses from the mountain.
Subandriyo added, when the gas release but the mountain blocked it, accumulation of pressure resulting in fracture. That triggered the emergence of a shallow earthquake. And after the gas escaped, seismic activity was not there anymore.
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