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Earthquake swarm analysis around Bekancan area, North Sumatra, Indonesia using the BMKG network data: Time periods of February 29, 2015 to July 10, 2017
Nugraha A.D.a, Supendi P.a,b, Widiyantoro S.a, Daryonoc, Wiyono S.c
a Global Geophysics Research Group, Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Bandung, 40132, Indonesia
b Agency for Meteorology Climatology, and Geophysics (BMKG), Bandung, Indonesia
c Agency for Meteorology, Climatology and Geophysics (BMKG), Jakarta, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2018 Author(s).Earthquake swarm are common occur around active tectonic and volcanic regions. The recent activities of swarm event occurred around Bekancan area, North Sumatra Province, Indonesia for February 29, 2015 to July 10, 2017 recorded by BMKG local/regional network. This location close to Sinabung and Sibayak volcanoes, lead to our intriguing to analysis of source mechanism and location of the swarm event. We attempted to update hypocenter location of BMKG data catalogue by applying double-difference method. We have successfully relocated of 152 swarm events in the area. The relocated events appear about 10 km northeast of Sinabung volcano with focus depth of about 0 to 30 km (below sea level), however very close to Sibayak volcano area. Overall, the dominant frequency of the event from the closest station is about 2 to 9 Hz. So, our preliminary interpretation is the location of swarm events close to Sinabung and Sibanyak volcanoes in Bekancan area which probably related to stress change due to volcanic-tectonic activity.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Bekancan,double-difference relocation,Sibayak volcano,Sinabung volcano,Swarm earthquake[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1063/1.5047377[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]