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Hypocenter relocation of earthquake swarm around Jailolo volcano, North Molucca, Indonesia using the BMKG network data: Time periods of September 27-October 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).A year after the hundreds of earthquake swarm last year (2015-2016), recent swarm activity in Jailolo, north of Maluku area, Indonesia began to reactivated. We have successfully relocated 108 out of the 130 earthquake swarm from September 27 to October 10, 2017 by using the BMKG network data through hypocenter double-difference method. The results indicate improvement in hypocenter location, where the initial earthquake focal depths fixed at a depth of 10 km has been updated. A validation through the histogram of travel-time residual depicts good relocation results, in which the residual values are mostly close to zero. The relocated hypocenters are located close to Jailolo volcano area which has focus depths of about 5 – 30 km. We analyzed of waveform of several swarm events (with largest and smallest magnitude) which are recorded by the nearest BMKG station and show has frequency range of 2 to 8 Hz. Our preliminary interpretation, these swarm events probably associated with stress change due to combination of tectonic and deep magma activity in the area.[/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]double difference relocation,Earthquake swarm,Jailolo volcano[/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/10.1063/1.5047378[/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]