Household risk perceptions and evacuation intentions in earthquake and tsunami in a Cascadia Subduction Zone

Buylova, Alexandra; Chen, Chen; Cramer, Lori A.; Wang, Haizhong; Cox, Daniel T.

doi:10.1016/j.ijdrr.2019.101442

Cited by 65 publications

(33 citation statements)

References 76 publications

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“…Risk perception includes the judgment of perceived probability and consequence (financial loss, property damage, injury, death, disruption to daily life, etc.). The impact of risk perception on reaction has been studied in different earthquake and tsunami settings ( 8, 10, 17, 18, 20, 21 ). Some of these studies show that people with higher risk perception are more likely to evacuate ( 18 , 22 ); whereas some show the opposite, such as in the 2009 American Samoa event ( 8 ).…”

Section: Literature Reviewmentioning

confidence: 99%

Households’ Intended Evacuation Transportation Behavior in Response to Earthquake and Tsunami Hazard in a Cascadia Subduction Zone City

Chen

Buylova

Chand

et al. 2020

Transportation Research Record

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Earthquakes along the Cascadia subduction zone would generate a local tsunami that could arrive at coastlines within minutes. Few studies provide empirical evidence to understand the potential behaviors of local residents during this emergency. To fill this knowledge gap, this study examines residents’ perceptions and intended evacuation behaviors in response to an earthquake and tsunami, utilizing a survey sent to households in Seaside, OR. The results show that the majority of respondents can correctly identify whether their house is inside or outside a tsunami inundation zone. Older respondents are more likely to identify this correctly regardless of any previous disaster evacuation experience or community tenure. The majority of respondents (69%) say they would evacuate in the event of a tsunami. Factors influencing this choice include age, motor ability, access to transportation, and trust in infrastructure resiliency or traffic conditions. While the City of Seaside actively promotes evacuation by foot, 38% of respondents still state they would use a motor vehicle to evacuate. Females and older respondents are more likely to evacuate by foot. Respondents with both higher confidence in their knowledge of disaster evacuation and higher income are more likely to indicate less time needed to evacuate than others. Generally, respondents are more likely to lead rather than follow during an evacuation, especially respondents who report being more prepared for an evacuation and who have a higher perceived risk. This study showcases a unique effort at empirically analyzing human tsunami evacuation lead or follow choice behavior.

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Section: Literature Reviewmentioning

confidence: 99%

Households’ Intended Evacuation Transportation Behavior in Response to Earthquake and Tsunami Hazard in a Cascadia Subduction Zone City

Chen

Buylova

Chand

et al. 2020

Transportation Research Record

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“…The survey questionnaire for this research was created based on questionnaires that have been used in previous research (Rego et al, 2018;Buylova et al, 2020). The questions in the questionnaire were answered by circling the offered answer, by grading on a scale from 1 to 5, or by writing a short answer.…”

Section: Questionnaire Designmentioning

confidence: 99%

Earthquake Risk Perception in Belgrade: Implications for Disaster Risk Management

Planić¹,

Cvetković²

2021

Preprint

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This paper presents quantitative research results regarding the influence of demographic factors on the earthquake risk perception of the citizens of Belgrade. This research aims to determine how much the citizens of Belgrade are aware of the risk and prepared to react in the event of an earthquake. The relationship between gender, age, level of education, and facility ownership with risk perception was examined. T-test, One-way ANOVA, and Pearson correlation coefficient were used to examine the relationship between the variables and the earthquake risk perception. The survey was conducted using a questionnaire that was given and then collected online among 235 Belgrade respondents during September 2020. The questions were divided into three categories. The first part of the questionnaire was consisted of general questions about the demographic characteristics of the respondents, then the questions that would determine the level of awareness of the respondents about earthquakes, and finally, the questions for determining the respondents' preparedness. The results of the research show that women have a higher perception of risk. It has been proven that the youngest respondents from the age category of 18-30 have the lowest risk perception. The influence of education level in no case showed a statistically significant correlation with risk perception.

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“…Previous research on tsunami risk reduction focused on an interrelated set of topics including infrastructure, warning systems, risk assessment, vulnerability, the adeptness of using vulnerability frameworks (Løvholt et al, 2014), evacuation mapping, and modeling. Social scientists also provided an extended amount of research on decision making and risk perception (Lindell and Perry, 2012;Liu et al, 2012;Drabek, 2013;Lindell et al, 2015;Wei et al, 2017;Buylova et al, 2020;Chen et al, 2020a).…”

Section: Literature Reviewmentioning

confidence: 99%

Using Evacuation Drills to Improve Tsunami Evacuation Preparedness and Resilience

Chen

Mostafizi

Wang

et al. 2021

Preprint

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This paper presents the use of tsunami evacuation drills within a coastal community in the Cascadia Subduction Zone (CSZ) to better understand evacuation behaviors and thus to improve tsunami evacuation preparedness and resilience. Evacuees' spatial trajectory data were collected by Global Navigation Satellite System (GNSS) embedded mobile devices. Based on the empirical trajectory data, probability functions were employed to model people's walking speed during the evacuation drills. An Evacuation Hiking Function (EHF) was established to depict the speed-slope relationship and to inform evacuation modeling and planning. The regression analysis showed that evacuees' speed was significantly negatively associated with slope, time spent during evacuation, rough terrain surface, walking at night, and distance to destination. We also demonstrated the impacts of milling time on mortality rate based on participants' empirical evacuation behavior and a state-of-the-art CSZ tsunami inundation model. Post-drill surveys revealed the importance of the drill as an educational and assessment tool. The results of this study can be used for public education, evacuation plan assessment, and evacuation simulation models. The drill procedures, organization, and the use of technology in data collection provide evidence-driven solutions to tsunami preparedness and inspire the use of drills in other types of natural disasters such as wildfires, hurricanes, volcanoes, and flooding.

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Household risk perceptions and evacuation intentions in earthquake and tsunami in a Cascadia Subduction Zone

Cited by 65 publications

References 76 publications

Households’ Intended Evacuation Transportation Behavior in Response to Earthquake and Tsunami Hazard in a Cascadia Subduction Zone City

Households’ Intended Evacuation Transportation Behavior in Response to Earthquake and Tsunami Hazard in a Cascadia Subduction Zone City

Earthquake Risk Perception in Belgrade: Implications for Disaster Risk Management

Using Evacuation Drills to Improve Tsunami Evacuation Preparedness and Resilience

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