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Cascadia Resilience Short Course: Presentations

Cascading Hazards in the Cascades: The Oregon Hazard Explorer for Lifelines Program (O-Help) Web GIS Platform

Speaker: Michael Olsen


Description: The Cascadia Subduction Zone is capable of producing large earthquake events (e.g., M9.0) that will trigger a variety of cascading hazards including landslides, liquefaction, and a tsunami. This presentation will discuss a new, online resource for engineers, the Oregon Hazard Explorer for Lifelines Program (O-Help), which provides currently mapped seismic hazards and anticipated ground deformations in Oregon for a variety of scenario events. This tool is meant to provide preliminary information to aid in planning an appropriate site investigation and understanding potential hazards early on in a project.

Evaluating Landslide Hazards Impacts on Infrastructure using Lidar: An Asset Management Approach

Speaker: Ben Leshchinsky


Description: Landslides are a pervasive and costly hazard, affecting significant lengths of right-of-way even in the absence of an earthquake. These hazards and neighboring, apparently stable slopes are expected to mobilize under the Cascadia Subduction Zone event, affecting critical lifelines and important infrastructure at a time of exceptional vulnerability. This presentation will focus on means of evaluating existing landslide hazards, possible future seismic slope instability and risk to infrastructure using GIS datasets and high-resolution lidar.

CSZ Earthquake and Tsunami Inundation and the Built Environment: Estimating Building Damage at Community Scale

Speaker: Daniel Cox


Description: It is necessary to estimate the extent of damage to the built environment due to the combined effects of earthquakes and tsunamis for coastal Oregon. This work demonstrates how these multi-hazards are combined with our knowledge of the building inventory for a coastal community to estimate the probability of damage using a fragility analysis. The presentation uses several locations in Clatsop county to show the relative damage and direct loss for different coastal communities.

Title: Seismic Robustness and Resilience of Existing Built Environment

Speaker: Andre Barbosa


Description: This presentation will provide an overview of methods being used in industry and academia to develop estimates of loss and of structural resilience for individual structures, which can be used as part of benefit cost analysis to aid in retrofit or rehabilitation decision making. 

The Role of Material Deterioration on the Resilience of Built Infrastructure

Speaker: Burkan Isgor


Description: Resilience of civil engineering structures that have not experienced material deterioration, such as steel corrosion or concrete deterioration, has been studied extensively. Limited research exists on the seismic performance of deteriorated structures; however, in most of these studies, the processes that are used to deteriorate structural elements follow accelerated procedures that do not reflect actual conditions in service. In particular, multi-hazard scenarios that include earthquakes and tsunamis, and their interaction with structures that are exposed to the deteriorative effects of seawater, require special attention. The presentation will highlight main deleterious mechanisms of materials in coastal structures and emphasize the role of material deterioration on structural resilience.

Recent Geotechnical Advances for the Improvement of Infrastructure Resilience

Speaker: Armin Stuedlein


Description: The Cascadia Subduction Zone will produce long duration ground shaking that will severely test our existing geotechnical infrastructure. Concerns range from the development of soil liquefaction and lateral spreading to the loads these phenomena will exert on geotechnical elements, such bridge foundations. This presentation will describe the efforts and results of recently completed and on-going research on the mitigation of liquefaction and evaluation of the geotechnical performance of novel bridge foundation elements for the improvement in resilience to subduction zone earthquakes. Emphasis is placed on those conditions most relevant for the Pacific Northwest and commonly-available, and where possible, sustainable materials.

Pacific Northwest Electrical System Resiliency and Disaster Preparedness Training

Speaker: Ted Brekken


Description: In order to address the urgent talent gap for energy systems engineers, this project proposes to train Oregon electrical power systems engineers for disaster preparedness and electrical system resiliency, with particular attention to a CSZ event. Both incumbent and emerging talent in the electrical power systems area will be trained through graduate research opportunities, university courses, online professional development courses, and industrial short-courses. Over time, the training received by the incumbent workforce and graduating emerging power systems engineers will strengthen disaster preparedness and resiliency awareness and skills throughout Oregon’s energy technologies and utilities industry.

An Agent-based Tsunami Evacuation Model: Mobility and Life Safety under Network Disruptions

Speaker: Haizhong Wang


Description: This talk will show how a unplanned network disruptions, such as failed bridges from the CSZ earthquake, can affect tsunami evacuation and life safety. This work combines state of the art tsunami inundation modeling and traffic flow theory to measure the impacts of these network disruptions to the transportation system. The agent-based modeling framework allows us to understand how human decisions such as route choice and travel mode (pedestrian, vehicular) can affect life safety. A case example for Seaside, Oregon, will demonstrate how this work can be used to facilitate the retrofitting and resource allocation to improve immediate emergency evacuation and disaster response.

Supply Chain Network Disruptions due to Earthquakes: Lessons Learned from Previous Disasters to Keep the Economy Moving

Speaker: Sal Hernandez


Description: Earthquakes have led to the destruction of property and in most instances the loss of life with worldwide costs in the hundreds of billions. Such events disrupt the connectivity between cities and regions which disrupts trade patterns, especially between rural and urban communities, causing economic impacts, and slows down recovery and reconstruction efforts, and creates additional costs to national and local governments. Hence, the goal of this presentation are to illustrate lessons learned from more recent earthquake events on supply chain networks and to present Oregon supply chain network connectivity issues and challenges in regards to a Cascadia Subduction Zone (CSZ) event.

Keynote Presentation

Title: Resilience Planning at Local Levels – Necessity for Considering Dependencies

Keynote Speaker: Kent Yu


Description: Since the release of the Oregon Resilience Plan in 2013, a number of forward-thinking public entities in Oregon have developed resilience plans at local levels to better prepare for the next Cascadia Subduction Zone earthquake and Tsunami.  However, some of such resilience planning efforts are often carried out in a “silo” fashion, exploring how their specific system would function after a disaster. This is an excellent first step. But to really address resilience on a community level, one must consider dependencies within and among different infrastructure systems and how loss of function in one system could cascade to others. In addition to the physical relationship between different systems, other space-, time-, and source-based dimensions of dependency need to be identified and considered to develop an effective resilience plan.

Facility Tour at O.H. Hinsdale Wave Research Laboratory, School of Civil and Construction Engineering

Description: Following the presentation, Pedro Lomonaco will lead a facility tour at the O.H. Hinsdale Wave Research Laboratory. The tour will include the structures laboratory, the geotechnical facilities, and the coastal wave/tsunami facilities.