10.14470/2T7561654577
Passarelli, Luigi
Heryandoko, Nova
Muzli
Rasmid
Zimmer, Martin
Cesca, Simone
Rivalta, Eleonora
Rohadi, Supriyanto
Merdianto, Untung
Dahm, Torsten
Milkereit, Claus
Jailolo network, West Halmahera - Indonesia 2016/2018
GFZ Data Services
2016
Deutsches GeoForschungsZentrum GFZ
GEOFON Data Centre
geofon@gfz-potsdam.de
Geophysical Instrument Pool Potsdam (GIPP)
Deutsches GeoForschungsZentrum GFZ
BMKG – Badan Meteorologi, Klimatologi, dan Geofisika
Broadband seismic waveforms
Seismic monitoring
Monitoring system
Seismological stations
In Situ/Laboratory Instruments > Magnetic/Motion Sensors > Seismometers
In Situ Land-based Platforms > GEOPHYSICAL STATIONS/NETWORKS
2016-01-01
2016-11-01
2017-03-17
2016-12-01
en
Seismic Network
https://geofon.gfz-potsdam.de/waveform/archive/response/7G/2016_2018
approx. 900GB
.mseed
XML
The Halmahera island belongs to the North Moluccas province (Maluku Utara), Indonesia. This K-shaped island is located in the eastern part of the Moluccas Sea, the only active arc-arc collision complex on the Earth. The western arm of the K forms a volcanic arc due to the former subduction of the Moluccas Sea plate underneath Halmahera. The region is characterized by intense seismic activity at crustal, intermediate depth, and along the subducting plate. At crustal level the Halmahera seismicity along the two eastern arms of the K show strike-slip faulting style. In November 2015 a localized intense and energetic seismic activity started around Jailolo volcano in the West Halmahera Regency. The seismic sequence intermittently lasted until February 2016 and hundreds of events were felt by the population and several buildings were destroyed and damaged by the shaking. The largest shocks of the sequence have been located by global agencies (GEOFON and GCMT) showing normal faulting style. The temporal evolution of the seismicity seems to be more swarm-like type activity instead of mainshock-aftershock sequence. In spring 2016 a research project has been funded by the German's Humanitarian Aid program in collaboration with BMKG, Indonesia, with the goal of understanding the origin of the intense seismic activity and the related hazard. In summer 2016 we instrumented the area with a dense seismic network composed of 29 short period and 6 broad-band seismometers. The instruments deployment aims at characterizing the seismicity of the Jailolo region in relationship with the 2015-2016 seismic activity. The network will help to understand the seismo-tectonic of the area and the relation between seismicity and the volcanic activity at Jailolo volcano and possible link with the 2015-2016 swarm. Should the seismic activity intensify as in November 2015, we can record it and narrow down the underlying physical mechanisms. Waveform data are available from the GEOFON data centre, under network code 7G, and are embargoed until the end of 2021.
127.3
127.9
0.7
1.2
Halmahera, Indonesia
Auswärtiges Amt, Humanitäre Hilfe
Helmholtz-Zentrum Potsdam - Deutsches GeoForschungsZentrum GFZ
https://doi.org/10.13039/501100010956
GIPP201612