Papers by afifi mutiarani
Tectonic of java dominated by Australian Eurasian plate movement that moves to the north, and get... more Tectonic of java dominated by Australian Eurasian plate movement that moves to the north, and get crushed with Eurasia plate that relative silent. Crushed zone is that plate beget rock movement. This condition make java as tectonic region active with high level of seismicity. In this context, research is done to know influence of frequency to magnitude earthquake and knows rock crispness zoom java as estimation of earthquake disaster. Seismotectonic parameter a region gets to be known from Gutenberg Richter's relation, which is logarithm N = a -bM , where N is frequency, M is magnitude earthquake point, a is seismicity's zoom a region and point b is rock crispness zoom. To reach the purpose of research, both of parameter gets analyzed by use of least squares methods. Data that is utilized in this research is earthquake parameter data that acquired of IRIS catalogue ISC and NEIC 1964-2012 by magnitudes ≥ 5 and depths 0-655 km at java that location at 105°-114° E and 6.5°-12° S. Transversal and longitudinal coordinate divided as 3 a part, which are Western Java, Intermediate java and East Java. Base on analysis's result of third spread territorial java was gotten by influence of frequency to earthquake magnitude which is the greater frequency therefore make magnitude of earthquake getting smaller. Comparison of seismotectonic parameter assigns b-value at West Java (0,721) higher than Intermediate Javanese region (0,65) and East Java (0,503). That finding are paraphrased as region of West Java is constitute region that have increase superordinate rock crispness than Intermediate Java and East Java. The result of analyzing also points out that crispness level excelsior rock, therefore excelsior too happening seismic activity territorial that
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Papers by afifi mutiarani