TY - JOUR
T1 - Seismic microzonation by using microtremor method in Pandan volcano, Bojonegoro, East Java
AU - Hidayat, Samsul
AU - Warnana, Dwa Desa
AU - Koesuma, Sorja
AU - Cari,
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2017/11/27
Y1 - 2017/11/27
N2 - Pandan volcano geographically is located in the north of Madiun and Nganjuk district, and south Bojonegoro district. The status of this volcano is longer not active, but it still emerges hot spring in some areas. This research aims to understand the distribution of the natural frequency value, the amplification factor value, and the vulnerability index value by using mictrotremor horizontal to vertical spectrum ratio (HVSR) method, that is believed to have an important contribution to earthquake disaster mitigation. There are 19 measurement sites where geographically ranges between 7°26′36.60″-7°27′16.49″S and 111°46′31.76″- 111°47′11.98″E. The survey used portable seismograph 3-components SL07 SARA single station. For each site of measurement needs 30 minutes of ambient noise recording with a sampling rate of 100 Hz. The data processing was done by HVSR analysis method on Easy HVSR software. The natural frequency (f o ) value ranges between 1,1 and 9,95 Hz, and amplification factor (A g ) value varies from 2,1 to 7,2. The vulnerability index (K g ) value ranging from 0,48 to 25,34. The highest risk index is located in the north part of the research area where have high potential to damage when the earthquake happens.
AB - Pandan volcano geographically is located in the north of Madiun and Nganjuk district, and south Bojonegoro district. The status of this volcano is longer not active, but it still emerges hot spring in some areas. This research aims to understand the distribution of the natural frequency value, the amplification factor value, and the vulnerability index value by using mictrotremor horizontal to vertical spectrum ratio (HVSR) method, that is believed to have an important contribution to earthquake disaster mitigation. There are 19 measurement sites where geographically ranges between 7°26′36.60″-7°27′16.49″S and 111°46′31.76″- 111°47′11.98″E. The survey used portable seismograph 3-components SL07 SARA single station. For each site of measurement needs 30 minutes of ambient noise recording with a sampling rate of 100 Hz. The data processing was done by HVSR analysis method on Easy HVSR software. The natural frequency (f o ) value ranges between 1,1 and 9,95 Hz, and amplification factor (A g ) value varies from 2,1 to 7,2. The vulnerability index (K g ) value ranging from 0,48 to 25,34. The highest risk index is located in the north part of the research area where have high potential to damage when the earthquake happens.
UR - http://www.scopus.com/inward/record.url?scp=85037703258&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/909/1/012031
DO - 10.1088/1742-6596/909/1/012031
M3 - Conference article
AN - SCOPUS:85037703258
SN - 1742-6588
VL - 909
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 1
M1 - 012031
T2 - International Conference on Science and Applied Science 2017, ICSAS 2017
Y2 - 29 July 2017
ER -