A5081734600- earthquake and tectonic studies
- Geological and Geochemical Analysis
- High-pressure geophysics and materials
- Seismology and Earthquake Studies
- Geological formations and processes
- Landslides and related hazards
- Earthquake Detection and Analysis
- Geological and Geophysical Studies
- Geological and Tectonic Studies in Latin America
- Evolutionary Game Theory and Cooperation
- Geological and Geophysical Studies Worldwide
- Ecosystem dynamics and resilience
- Seismic Waves and Analysis
- Geology and Paleoclimatology Research
- Land Use and Ecosystem Services
Société Nationale des Chemins de Fer Français (France)
2024-2025
Institut de physique du globe de Paris
2015-2021
Centre National de la Recherche Scientifique
2015-2021
Université Paris Cité
2015-2021
Earth Observatory of Singapore
2017-2020
Nanyang Technological University
2017-2020
Sorbonne Paris Cité
2015-2020
The largest tectonic relief breaking the Earth's surface (13 km vertically) is at subduction margin of Andes, which generates routinely megathrust earthquakes (Mw > 8.5) and drives paradigmatic Andean orogen. Here we present key geologic evidence to reassess first-order features geomorphology tectonics across Central where orogen includes Altiplano Plateau attains its maximum integrated height width. has a stepped morphology dominated by low-relief Atacama Bench, similar giant uplifted...
Trans-Himalayan geodetic data show that, between both syntaxes, India/Asia convergence is steadily oriented ≈ N20°E. However, surface faulting near along the 2005 and 1950 earthquake ruptures, imply long-term thrusting directed 130° apart, post-LGM (last Glacial Maximum) shortening rates of 5 to 6 mm/y, 2 3 times slower than in Nepal (≈ 15 20 mm/y). Syntaxial earthquakes' return-time are also longer (>2,000 y) 700 y). In a structural frame centered halfway syntaxial cusps, tectonic features...
Although the M=w8.7, 1950 Assam earthquake endures as largest continental ever recorded, its exact source and mechanism remain contentious. In this paper, we jointly analyze spatial distributions of reappraised aftershocks landslides, provide new field evidence for hitherto unknown surface rupture extent along Mishmi Abor Hills. Within both mountain fronts, relocated fresh landslide scars spread over an area ≈330 km by 100 km. The former are more abundant in Hills while later mostly affect...
Significance In Bali, the cooperative management of rice terraces extends beyond villages to whole watersheds. To understand why, we created a model that explores how cooperation can propagate from pairs individuals extended groups, creating resilient system bottom-up both increases and equalizes harvests. Spatial patterns collective crop management—observable in Google Earth—closely match predictions model. The spatial patterning emerges is nonuniform scale-free. Although parameters here...
Abstract The northern Indian Ocean has been widely recognized as an area of broadly distributed deformation within the composite India‐Australia‐Capricorn plate, hosting several diffuse boundary zones and a triple junction. occurrence, along reactivated fracture zones, exceptionally large ( M w = 8.6 8.2) 2012 Wharton Basin strike‐slip earthquakes, however, questions whether this plate is breaking apart discrete boundary. Using recent bathymetric seismic data, we analyze most prominent zone...
Abstract The complex near trench velocity structures, characterized by strongly varying bathymetry along with seawater, can produce substantial waveform complexities for earthquakes, which makes it difficult to study earthquake source parameters through modeling/inversion. Here we explore these wavefield via modeling teleseismic records of a Mw6.6 coast event and Mw6.8 in the 2015 Illapel sequence. For event, waveforms direct P waves at teleseismic/diffracted distances are simple, obtain...
In Eastern Indonesia, the western Outer Banda arc accommodates a part of oblique Australian margin collision with Eurasia along Timor Trough. Yet, unlike Wetar and Alor thrusts Inner in north adjacent Java subduction zone west, both recent historical seismicity Trough are extremely low. This long-term seismic quiescence questions whether Arc front is actually fully locked or simply aseismic raises major concerns on possible occurrence large magnitude tsunamigenic earthquakes this vulnerable...