A Possibility of Real Time Earthquake Magnitude Determination using GPS  for Tsunami warning System in Indonesia

Sulastri Sulastri; Buldan Muslim; Bambang Sunardi; Supriyanto Rohadi; Yusuf Hadi Perdana; Muzli Muzli; Susilo Susilo; Jonny Effendi

doi:10.21831/jsd.v7i2.21258

A Possibility of Real Time Earthquake Magnitude Determination using GPS for Tsunami warning System in Indonesia

Sulastri Sulastri, BMKG, Indonesia
Buldan Muslim, Pusat Sains Atmosfer LAPAN, Indonesia
Bambang Sunardi, Pusat Penelitian dan Pengembangan BMKG, Indonesia
Supriyanto Rohadi, Pusat Penelitian dan Pengembangan BMKG, Indonesia
Yusuf Hadi Perdana, Pusat Penelitian dan Pengembangan BMKG, Indonesia
Muzli Muzli, 1Pusat Penelitian dan Pengembangan BMKG & Earth Observatory of Singapore, Indonesia
Susilo Susilo, Badan Informasi Geospasial, Indonesia
Jonny Effendi, Badan Informasi Geospasial, Indonesia

10.21831/jsd.v7i2.21258

Abstract

This paper contains preliminary study about the possibility of real time earthquake magnitude determination from GPS in Indonesia for tsunami warning system. Until now, the determination of earthquake sources in Indonesia by using seismic records. By a collaborative research and utilizing the GPS networks managed by Indonesian Geospatial Information Agency (Badan Informasi Geospasial/ BIG), there is a chance to determine the earthquake magnitude in another way, instead of using seismograph and accelerograph networks. The displacement vector from GPS measurements plays important rules in the earthquake magnitude determination. In the future, the earthquake magnitude determination using GPS could support the Indonesia Tsunami Early Warning System conducted by BMKG.

Keywords

GPS, earthquake magnitude, tsunami warning system

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DOI: https://doi.org/10.21831/jsd.v7i2.21258