A5023299933- earthquake and tectonic studies
- Geological and Geochemical Analysis
- Seismology and Earthquake Studies
- Earthquake Detection and Analysis
- Geology and Paleoclimatology Research
- Seismic Waves and Analysis
- Geochemistry and Geologic Mapping
- Geological and Geophysical Studies
- High-pressure geophysics and materials
- Landslides and related hazards
- Geological Studies and Exploration
- Paleontology and Stratigraphy of Fossils
- Geological and Geophysical Studies Worldwide
- Seismic Imaging and Inversion Techniques
- Pleistocene-Era Hominins and Archaeology
- Nuclear Physics and Applications
- Geomagnetism and Paleomagnetism Studies
- Anomaly Detection Techniques and Applications
- Geotechnical and Geomechanical Engineering
- Atmospheric and Environmental Gas Dynamics
- Scientific Measurement and Uncertainty Evaluation
- Marine and environmental studies
- Reservoir Engineering and Simulation Methods
- Groundwater and Isotope Geochemistry
- Geochemistry and Elemental Analysis
University of Leeds
2014-2025
University of Oregon
2023
Centre for the Observation and Modelling of Earthquakes, Volcanoes and Tectonics
2018-2021
University of Oxford
2009-2018
University of Florida
2006-2014
Abstract Many areas of the Earth’s crust deform by distributed extensional faulting and complex fault interactions are often observed. Geodetic data generally indicate a simpler picture continuum deformation over decades but relating this behaviour to earthquake occurrence centuries, given numerous potentially active faults, remains global problem in hazard assessment. We address challenge for an array seismogenic faults central Italian Apennines, where crustal extension devastating...
Large continental earthquakes necessarily involve failure of multiple faults or segments. But these same critically-stressed systems sometimes fail in drawn-out sequences smaller over days years instead. These two modes have vastly different implications for seismic hazard and it is not known why fault one mode the other, what controls termination reinitiation slip protracted sequences. A paucity modern observations has hampered our understanding to-date, but a series three Mw>6 from August...
We provide a database of the coseismic geological surface effects following Mw 6.5 Norcia earthquake that hit central Italy on 30 October 2016. This was one strongest seismic events to occur in Europe past thirty years, causing complex ruptures over an area >400 km2. The originated from collaboration several European teams (Open EMERGEO Working Group; about 130 researchers) coordinated by Istituto Nazionale di Geofisica e Vulcanologia. observations were collected performing detailed field...
Surface slip distributions for an active normal fault in central Italy have been measured using terrestrial laser scanning (TLS), order to assess the impact of changes orientation and kinematics when modelling subsurface that control seismic moment release. The southeastern segment surface trace Campo Felice near city L'Aquila was mapped surveyed techniques from structural geology TLS define vertical horizontal offsets geomorphic slopes since last glacial maximum (15 ± 3 ka). geometry 43...
<p>We present some preliminary results on the mapping of coseismically-induced ground ruptures following Aug. 24, 2016, Central Italy earthquake (Mw 6.0). The seismogenic source, as highlighted by InSAR and seismological data, ruptured across two adjacent structures: Vettore Laga faults. We collected field data breaks along whole deformed area different scenarios on-fault coseismic displacement arise from these observations. To north, fault, surface faulting can be mapped quite...
Abstract The temporal evolution of slip on surface ruptures during an earthquake is important for assessing fault displacement, defining seismic hazard and predicting ground motion. However, measurements near-field displacement at high resolution are elusive. We present a novel record co-seismic measured with 1-second the 30 th October 2016 M w 6.6 Vettore (Central Italy), using low-cost Global Navigation Satellite System (GNSS) receivers located in footwall hangingwall Mt. - Bove system,...
Volcanic flank instability poses a significant geohazard, particularly in oceanic island settings. Since September 2023, the VolcaMotion project has been investigating mechanisms and timing of volcano across Macaronesian archipelagos (Cape Verde, Canary Islands, Azores), integrating geological, geochronology geophysical data. We combine detailed geological structural mapping exposed volcanic edifices with high-resolution topographic surveys, including ground deformation monitoring, to study...
Seismic hazard models often assume near-constant earthquake recurrence intervals on faults since the Last Glacial Maximum, approximately 15,000 years ago. However, it is tricky to show that real fault systems exhibit this behaviour, particularly for distributed networks of normal in extensional regimes. Instead, data limited historical seismology records, which likely over a much shorter time than intervals, or single time-averaged Holocene slip rate from paleoseismology methods. Neither...
Abstract Cosmogenic exposure data can be used to calculate time‐varying fault slip rates on normal faults with exposed bedrock scarps. The method relies assumptions related how the scarp is preserved, which should consistent at multiple locations along same fault. Previous work commonly relied cosmogenic from a single sample locality determine rate of Here we show that by applying strict sampling criteria and using geologically informed modeling parameters in Bayesian‐inference Markov chain...
The combination of the Sunda megathrust and (strike‐slip) Sumatran Fault (SF) represents a type example slip‐partitioning. However, superimposed on SF are geometrical irregularities that disrupt local strain field. largest such feature is in central Sumatra where splits into two fault strands up to 35 km apart. A dense network was installed along 350 section around this bifurcation, registering 1016 crustal events between April 2008 February 2009. 528 these events, with magnitudes 1.1 6.0,...
Abstract Field measurements of coseismic fault slip often differ from surface models derived satellite geodesy. Quantifying these differences is challenging as many geodetic techniques inadequately image near‐fault deformation. We use an iterative closest point algorithm to difference preearthquake and postearthquake terrestrial laser scanning clouds reveal centimeter‐scale patterns deformation caused by shallow in the 2016 M w 6.6 Norcia (Central Italy) earthquake. Terrestrial offsets are...
SUMMARY The Mongolian Altai is an intracontinental oblique contractional orogen related to the far-field effects of Indo-Asian collision. Global Positioning System (GPS) data suggest that ∼10–15 per cent total Indo-Asia convergence accommodated across this orogen. The Hoh Serh–Tsagaan Salaa fault system one several NNW–SSE-trending faults acting partition strain and accommodate shortening dextral shear in Altai. This zone displaces late Pleistocene alluvium along southwest piedmont Serh...