Provinsi Papua merupakan salah satu provinsi di Indonesia timur. Kawasan bagian timur dari memang dikenal memiliki tingkat kerawanan gempa yang tinggi. Gempa dengan intensitas rendah sampai tinggi sering terjadi sehingga berpotensi menimbulkan korban jiwa dan juga kerusakan infrastruktur. Oleh karena itu, diperlukan suatu upaya mitigasi untuk mengatasi hal tersebut. Salah dapat dilakukan yaitu ...

The application of the elasto-plastic material model known as Barcelona Model (BM) for numerical assessment a historical vault subjected to earthquake sequence is presented in this work. As case study, part masonry erected Southern Poland 12th century was chosen. For study purposes, 3D finite element (FEM) prepared using ABAQUS/Standard software program. essential details structure geometry wer...

Abstract The moderate earthquake (Mw 5.9) struck eastern Manggarai and its surroundings on February 21, 2022, at 12:36:00 UTC. Although this was classified as a earthquake, it produced significant number of aftershocks. aftershocks could be observed the post-seismic activity, which still well recorded until March 31, 2022. hypocenter location is updated by applying double-difference method. aft...

Abstract Foreshocks in the form of microseismicity are among most powerful tools to study physical processes that occur before main earthquakes. However, their detection and precise characterization is still sparse, especially for small-to-moderate-size earthquakes (Mw<6). We present here a detailed foreshock analysis 7 November 2019, Balsorano, Italy, normal fault earthquake (Mw 4.4). T...

Both earthquake size-distributions and aftershock decay rates obey power laws. Recent studies have demonstrated the sensibility of their parameters to faulting properties such as focal mechanism, rupture speed or fault complexity. The faulting style dependence may be related to the magnitude of the differential stress, but no model so far has been able to reproduce this behaviour. Here we inves...

A shallow destructive inland earthquake of M6.8 occurred on Oct. 23, 2004 (JST) in the middle part of Niigata prefecture, Japan. The aftershock activity was high as compared to those of the other shallow inland earthquakes in Japan. We relocated the sources of the main shock and aftershock activity by adopting the double-difference earthquake location algorithm. The precisely relocated hypocent...

the andeka earthquake of 25/09/2002 (mw = 5.6) shocked the northeast region of the city of masjed-soleyman in zagros folded belt. the event caused no life loss but 4 people were reported to be injured. the quake occurred in the southern parts of the zagros belt in an oil-rich area. no damage could be observed in the masjed-soleyman dam site, which is the most important hydroelectric infrastruct...

Abstract Focal mechanisms, which reflect the sense of slip in earthquakes, provide important constraints for understanding crustal tectonics and earthquake source physics, including interactions among earthquakes during mainshock–aftershock sequences or seismic swarms. mechanisms small (magnitude ?3.5) are usually determined by first-motion P-wave polarities, sometimes supplemented ratio S-wave...

Aftershocks are the most striking evidence of earthquake interactions and the physical mechanisms at the origin of their occurrence are still intensively debated. Novel insights stem from recent results on the influence of the faulting style on the aftershock organisation in magnitude and time. Our study shows that the size of the aftershock zone depends on the fault geometry. We find that posi...