Cloud-based Web Application for Updating USGS 3D Subduction Zone Geometry Models
Abstract
The three-dimensional (3D) geometry of a subducting plate plays a crucial role for driving upper plate deformation as well as controlling the spatial extent and magnitude of megathrust earthquakes. To provide better constraints on 3D subduction zone geometries, we are building an infrastructure that facilitates the collection and modeling of new geophysical data to improve constraints on plate geometry that are crucial in hazard assessment and mitigation research. Here, we present a workflow and current status of a cloud-based web application for collecting new geophysical data and updating U.S. Geological Survey (USGS) Slab Models. This science gateway builds upon the USGS Slab2 subduction zone geometry models (Hayes et al., 2018) by running the Slab2 code on the Amazon Web Services (AWS) cloud platform. Users can contribute geophysical data (e.g., relocated hypocenters, active source data, and tomography models) and create their own slab model through a serverless web application. The new USGS Slab Model platform will also make it easier to maintain and to integrate the latest 3D models into USGS hazard products (e.g., ShakeMap and finite fault model). The USGS Slab Model web application will be publicly accessible, and the AWS CloudFormation infrastructure as code template will also be made available. This work will provide more easily accessible and well-documented slab geometries that can be used in a wide variety of research that includes geodynamic modeling, seismotectonic studies, and earthquake and tsunami hazard assessment.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2020
- Bibcode:
- 2020AGUFMIN037..05H
- Keywords:
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- 1908 Cyberinfrastructure;
- INFORMATICS;
- 1976 Software tools and services;
- INFORMATICS;
- 1978 Software re-use;
- INFORMATICS