Seafloor optical fiber strainmeters produce long, complex records containing tectonic signals, oceanographic variability, and instrumental noise. This research develops a template-free workflow using matrix-profile analysis to identify recurrent motifs and unusual transients without requiring predefined event waveforms. Candidate signals are evaluated using cross-instrument coherence, spectral characteristics, and comparisons with regional seismic and tremor catalogs. The broader goal is to establish a scalable and physically validated framework for discovering weak signals in offshore strain observations.

Repeated strain signatures may reveal persistent seismic sources and provide new information about how deformation is transmitted across the offshore Cascadia margin. This research investigates recurring signals detected by seafloor optical fiber strainmeters and compares their timing, waveform similarity, and spatial coherence with regional earthquakes, tremor, and other geophysical observations. Physical and statistical tests are used to distinguish tectonic signals from environmental and instrumental variability. The results help evaluate how fiber-strain observations can complement conventional seismic and geodetic monitoring offshore.

Slow-slip events redistribute stress along subduction zones, but their offshore extent and evolution remain uncertain. My research investigates how offshore strain observations can complement terrestrial geodetic (GNSS and InSAR) and seismic measurements to constrain the location, magnitude, and migration of slow slip in Cascadia. Resolving these processes may improve our understanding of interactions among slow slip, tremor, and locked portions of the megathrust.

The Bengal Basin is located near the interaction of the Indian, Eurasian, and Burma plates and contains a complex record of convergence and sediment accumulation. My research investigated variations in crustal thickness and Moho structure beneath the basin and surrounding tectonic regions. These variations provide insight into how plate interactions, sediment loading, and regional deformation have modified the continental crust.

The Indo-Burma plate boundary accommodates oblique convergence and may contain a locked megathrust capable of generating large earthquakes. I contributed to a collaborative investigation of how interseismic strain accumulation and earthquake-related deformation vary along this complex plate boundary. The project supports a better understanding of megathrust behavior and regional seismic hazards affecting Bangladesh, Myanmar, and northeastern India.

Flooding across large river basins develops through interactions among precipitation, river discharge, topography, soil conditions, and land-surface processes. This collaborative research investigates how inundation patterns evolve across space and time and how physical understanding can improve subseasonal flood estimates. The broader objective is to support more reliable flood characterization and hazard assessment in vulnerable, data-limited regions.

The hilly regions of southeastern Bangladesh experience frequent landslides influenced by topography, geology, rainfall, land use, and human disturbance. My research examined how these factors interact to control the spatial distribution of landslide-prone terrain. The results contribute to regional geohazard assessment and the identification of communities and infrastructure exposed to elevated landslide risk.

The Changotaung anticline is one of the least explored structures within the Chittagong–Tripura Fold Belt. Our collaborative research reconstructed its sedimentary evolution from wave-influenced shallow-marine conditions through tide-dominated environments to fluvio-deltaic deposition. This three-stage history provides new constraints on Upper Surma Group stratigraphy and the sedimentary and tectonic development of the Bengal Basin.

Clay deposits within the Dupi Tila Formation preserve evidence of source-rock weathering, sediment transport, and river-system development in the Bengal Basin. My research investigated their origin, composition, and depositional history to understand how geological and environmental processes influenced clay formation. These deposits provide insight into sediment provenance, post-depositional alteration, and the evolution of the basin’s fluvial landscapes.