Rasheed Ajala

Rasheed Ajala
Columbia University | CU

Doctor of Philosophy

About

6
Publications
1,514
Reads
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17
Citations
Citations since 2016
6 Research Items
17 Citations
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20162017201820192020202120220246810
20162017201820192020202120220246810
20162017201820192020202120220246810
Introduction

Publications

Publications (6)
Article
Full-text available
Accurately predicting the seismic wavefield is important for physics-based earthquake hazard studies and is dependent on an accurate source model, a good model of the subsurface geology, and the full physics of wave propagation. Here, we conduct numerical experiments to investigate the effect of different representations of the Southern California...
Article
Full-text available
Cost-effective strategies for enhancing seismic velocity models are an active research topic. The recently developed hybridization technique shows promise in improving models used for deterministic earthquake hazard evaluation. We augment the results of Ajala and Persaud (2021) by exploring other hybrid models generated using 13 sets of embedding p...
Article
Full-text available
Updating Earth models used by the scientific community in geologic studies and hazard assessment has a significant societal impact but is computationally prohibitive due to the large spatial scale. The advent of urban seismology allowed rapid development of local high-resolution models using short-term dense seismic arrays to become conventional. T...
Conference Paper
Yangon has a population of over seven million and is one of the fastest growing cities in Myanmar. Like many of Myanmar’s large cities, it is located in close proximity to the Sagaing fault, a major strike-slip fault in Southeast Asia that has historically produced magnitude >7 earthquakes. In addition, the Indo-Myanmar region hosts complex tectoni...
Poster
Full-text available
We evaluate the accuracy of earth models developed in the Salton Trough, Southern California in ground motion prediction.
Article
Full-text available
The Coachella Valley in the northern Salton Trough is known to produce destructive earthquakes, making it a high seismic hazard area. Knowledge of the seismic velocity structure and geometry of the sedimentary basins and fault zones is required to improve earthquake hazard estimates in this region. We simultaneously inverted first P wave travel tim...

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