APPLICATION OF INSAR TECHNIQUE FOR THE DETECTION OF GROUND DISPLACEMENT IN PENANG ISLAND, MALAYSIA

2021 ◽  
Vol 21 (85) ◽  
Author(s):  
Kazeem Olukunle Rauff
Keyword(s):  
Sensors ◽  
2020 ◽  
Vol 20 (3) ◽  
pp. 678
Author(s):  
Mark van der Meijde ◽  
Md Ashrafuzzaman ◽  
Norman Kerle ◽  
Saad Khan ◽  
Harald van der Werff

It remains elusive why there was only weak and limited ground shaking in Kathmandu valley during the 25 April 2015 Mw 7.8 Gorkha, Nepal, earthquake. Our spectral element numerical simulations show that, during this earthquake, surface topography restricted the propagation of seismic energy into the valley. The mountains diverted the incoming seismic wave mostly to the eastern and western margins of the valley. As a result, we find de-amplification of peak ground displacement in most of the valley interior. Modeling of alternative earthquake scenarios of the same magnitude occurring at different locations shows that these will affect the Kathmandu valley much more strongly, up to 2–3 times more, than the 2015 Gorkha earthquake did. This indicates that surface topography contributed to the reduced seismic shaking for this specific earthquake and lessened the earthquake impact within the valley.


2010 ◽  
Vol 66 (2) ◽  
pp. 387-396
Author(s):  
Jiho JANG ◽  
Masanori HAMADA
Keyword(s):  

Author(s):  
Lisa Beccaro ◽  
Cristiano Tolomei ◽  
Claudia Spinetti ◽  
Marina Bisson ◽  
Laura Colini ◽  
...  

1996 ◽  
Vol 36 (Special) ◽  
pp. 81-97 ◽  
Author(s):  
MASANORI HAMADA ◽  
RYOJI ISOYAMA ◽  
KAZUE WAKAMATSU
Keyword(s):  

Author(s):  
Yu FUJIWARA ◽  
Seiya YOKOTA ◽  
Akira TAKEISHI ◽  
Koichiro IIJIMA ◽  
Masafumi EKAWA

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