24–28 Jun 2019
Europe/Vienna timezone

High-Precision Teleseismic Double-Difference Earthquake Relocation of Palu – Koro Earthquake M 7.4

Not scheduled
Poster Theme 2. Events and Nuclear Test Sites

Speaker

Tio Azhar Prakoso Setiadi (NDC Meteorology Climatology and Geophysics Agency (BMKG))

Description

The Sulawesi region has complex tectonic conditions. One of the main sources of seismicity in the study area is the Palu-Koro fault activity with the application of left lateral strike-slip. On September 28, 2018, at 17.02.45 WIB (GMT + 7), an earthquake of M 7.4 occurred to cause a tsunami hazard in the areas of Palu and Donggala. BMKG sensor recorded 835 aftershocks until November 25, 2018. In this study we use 3D seismic‐wave velocity model with a grid size 1°×1° in the travel‐time calculations. The results of the relocation show the earthquake patterns along the Palu-Koro fault, and the Matano fault with shallow depth (d> 70km).

Primary author

Tio Azhar Prakoso Setiadi (NDC Meteorology Climatology and Geophysics Agency (BMKG))

Presentation materials

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