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Cite as

Passarelli, Luigi; Heryandoko, Nova; Muzli; Rasmid; Zimmer, Martin; Cesca, Simone; Rivalta, Eleonora; Rohadi, Supriyanto; Merdianto, Untung; Dahm, Torsten; Milkereit, Claus (2016): Jailolo network, West Halmahera - Indonesia 2016/2018. GFZ Data Services. Dataset/Seismic Network. doi:10.14470/2T7561654577.

Identifier

10.14470/2T7561654577

FDSN network code

7G

DataCite metadata

HTML | JSON | XML | INSPIRE | Local XML source file

Terms/rights

Unknown

Creator(s)

Passarelli, Luigi ; Heryandoko, Nova ; Muzli ; Rasmid ; Zimmer, Martin ; Cesca, Simone ; Rivalta, Eleonora ; Rohadi, Supriyanto ; Merdianto, Untung ; Dahm, Torsten ; Milkereit, Claus

Description

• (Abstract) 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.

Title

Jailolo network, West Halmahera - Indonesia 2016/2018

Publisher

GFZ Data Services

Publication Year

2016

Resource Type

Dataset / Seismic Network

Dates

1. Collected 2016-01-01
2. Accepted 2016-11-01
3. Created 2017-03-17
4. Issued 2016-12-01
5. Available 2022-01-01

Place(s)

1. Halmahera, Indonesia

Contributor(s)

• Hosting institution: Deutsches GeoForschungsZentrum GFZ
• Data manager: GEOFON Data Centre
• Sponsor: Geophysical Instrument Pool Potsdam (GIPP)
• Project leader: Deutsches GeoForschungsZentrum GFZ
• Project member: BMKG – Badan Meteorologi, Klimatologi, dan Geofisika

Subjects

• SeisData terms: GIPP Geophysics MESI MiniSEED Passive seismic Seismometers Temporary Velocity Volcano
• GCMD keywords: Earthquakes Volcanic activity Seismological stations Geophysical stations/networks Seismometers
• Other terms: Monitoring system; Seismological stations

Funding Reference(s)

1. Auswärtiges Amt, Humanitäre Hilfe
2. Helmholtz-Zentrum Potsdam - Deutsches GeoForschungsZentrum GFZ (GIPP201612)

Language

en

Sizes

1. 715GB

Reference(s)

FDSN network code

7G

Network dates

2016–2018

Data time range

2016–2018

Station Count

35

Seismic metadata

fdsnws-station FDSN StationXML SC3 XML

To retrieve waveform data and metadata (including instrument responses) for this and other seismic networks, see here. Network (data set) values are taken from DataCite XML with Metadata Properties version 4.4. Contact us if you are the PI and wish to make changes. Old-style network page for this network here.