Instituto do Petroleo e Geologia - Divisaun Risku Jeolojiku

03/02/2023

Arigato Gozaimash*te Goto - San, for supporting IPG so far as JICA CR. I wish you all the best in your life. Sayonara.

25/06/2022

22/04/2022

11/03/2022

OPEN ACCESS SCIENTIFIC PAPER - Timor Collision Front Segmentation Reveals Potential for Great Earthquakes in the Western Outer Banda Arc, Eastern Indonesia

"In Eastern Indonesia, the western Outer Banda arc accommodates a part of the oblique Australian margin collision with Eurasia along the Timor Trough. Yet, unlike the Wetar and Alor thrusts of the Inner Banda arc in the north and the adjacent Java subduction zone in the west, both recent and historical seismicity along the Timor Trough are extremely low. This long-term seismic quiescence questions whether the Banda Arc collision front along the Timor Trough is actually fully locked or simply aseismic and raises major concerns on the possible occurrence of large magnitude and tsunamigenic earthquakes in this vulnerable and densely populated region. Here, we jointly analyze multibeam bathymetry and 2D seismic reflection data acquired along the Timor Trough to characterize the location, nature, and geometry of active faults. Discontinuous narrow folds forming a young accretionary prism at the base of the Timor wedge and spatially correlated outcropping normal faults on the bending northwest Australian shelf reveal two concurrent contrasting styles of deformation: underthrusting and frontal accretion. We find that those tectonic regimes and their associated seismic behaviors depend on 1) the thickness of the incoming and underthrusting Cenozoic sedimentary sequence, 2) the vergence of inherited normal faults developed within the continental shelf, and 3) the depth of the décollement beneath the Timor wedge. Based on the along-strike, interchanging distinct deformation style, we identify the mechanical and seismic segmentation along the Banda arc collision front and discuss the implications for earthquake and tsunami hazards along the western Outer Banda arc region."

https://www.frontiersin.org/articles/10.3389/feart.2021.640928/full

11/06/2021

Timor-Tanimbar Trough, Eastern Indonesia Introduction The Timor-Tanimbar Trough is an oceanic trough, which is an eastern continuation o...

08/03/2021

VARANDA HEADLINE IPG halo sosializasaun-estudu mapamentu risku dezastre naturál iha Viqueque HEADLINEMUNISÍPIUVIQUEQUE IPG halo sosializasaun-estudu mapamentu risku dezastre naturál iha Viqueque March 8, 2021 4 FAHE BA Facebook Twitter Pinterest WhatsApp Linkedin Email Print Tumblr Telegram LINE ...

14/12/2020

VARANDA HEADLINE IPG-Mercy Corps selebra akordu estudu redusaun risku dezastre naturál HEADLINEKAPITÁLNASIONÁL IPG-Mercy Corps selebra akordu estudu redusaun risku dezastre naturál December 14, 2020 234 FAHE BA Facebook Twitter Pinterest WhatsApp Linkedin Email Print Tumblr Telegram LINE Viber J...