Relocation and Focal Mechanism of Aftershocks Pidie Jaya Earthquake (Mw6.5) Dec 7th, 2016 using BMKG Network

  • Pepen Supendi Badan Meteorologi, Klimatologi, dan Geofisika (BMKG)
  • Andri D. Nugraha Institut Teknologi Bandung (ITB)
  • Tony Agus Wijaya Badan Meteorologi, Klimatologi, dan Geofisika (BMKG)


Relocation, Focal Mechanism, Fault


We have successfully relocated 74 out of 89 aftershocks until December 19, 2016, by using hypocenter double-difference method. We also have conducted focal mechanism analysis to estimate the type of fault slip. The results indicate improvement in hypocenter location, where the initial earthquakes focus depth at a fixed depth of 10 km have been updated and have described the patterns of active fault in the area trending Northwest-Southeast. The validity through the histogram of travel-time residual shows fairly good data processing where the residual value is close to zero (t.obs - ~ 0). Based on focal mechanism solutions of mainshock and two selected aftershocks, the type of fault is right lateral strike-slip.


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Nov 15, 2017
How to Cite
SUPENDI, Pepen; NUGRAHA, Andri D.; WIJAYA, Tony Agus. Relocation and Focal Mechanism of Aftershocks Pidie Jaya Earthquake (Mw6.5) Dec 7th, 2016 using BMKG Network. Jurnal Geofisika, [S.l.], v. 15, n. 3, p. 17-20, nov. 2017. ISSN 2477-6084. Available at: <>. Date accessed: 03 apr. 2020. doi: