Great expectations for earthquake early warnings on the United States West Coast

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dc.citation.volume82
dc.contributor.authorBostrom A
dc.contributor.authorMcBride SK
dc.contributor.authorBecker JS
dc.contributor.authorGoltz JD
dc.contributor.authorde Groot R-M
dc.contributor.authorPeek L
dc.contributor.authorTerbush B
dc.contributor.authorDixon M
dc.date.accessioned2023-09-11T02:44:04Z
dc.date.accessioned2023-09-21T22:15:12Z
dc.date.available2023-09-11T02:44:04Z
dc.date.available2023-09-21T22:15:12Z
dc.date.issued2022-11-01
dc.date.updated2023-09-10T21:30:52Z
dc.description© 2022 The Authorsen_US
dc.description.abstractIn October 2019, California became the first state in the United States to fully activate a public earthquake early warning system—ShakeAlert®—managed by the U.S. Geological Survey. The system was subsequently rolled out in March 2021 in Oregon and May 2021 in Washington. Earthquake early warning (EEW) systems can provide seconds of notice to people and technological systems that shaking is imminent, but their effectiveness depends on recipients’ expectations and actions as well as technical performance. To better understand these dependencies, we surveyed representative samples of adults in California (N = 1219), Oregon (N = 1020), and Washington (N = 1037) in February 2021. Most respondents had experienced earthquakes, but few had lived through violent shaking; most had not followed protective action guidance to Drop, Cover, and Hold On (DCHO) in earthquakes; and most reported no personal or social harm from prior earthquakes. Nevertheless, expectations and perceived usefulness of EEW were high, and higher still for those who expected alerts to be accurate and easy to use, expressed tolerance of missed and erroneous warnings, and expected to be affected by a damaging earthquake in their lifetime. Results suggest opportunities to better align public preferences and expectations with ShakeAlert operations. For example, some respondents preferred lower alerting thresholds than those proposed by government and scientists. Moreover, reported tolerance of warning errors was widespread, but respondents wanted explanations quickly, suggesting a need to further develop post-alert messaging. Findings from this study should be informative for future research on the co-evolution of experiences and expectations with EEW systems.
dc.identifier.citationBostrom A, McBride SK, Becker JS, Goltz JD, Groot RMD, Peek L, Terbush B, Maximilian Dixon . (2022). Great expectations for earthquake early warnings on the United States West Coast. International Journal of Disaster Risk Reduction. 82.
dc.identifier.doi10.1016/j.ijdrr.2022.103296
dc.identifier.elements-typejournal-article
dc.identifier.harvestedMassey_Dark
dc.identifier.issn2212-4209
dc.identifier.urihttp://hdl.handle.net/10179/20133
dc.publisherElsevier Ltd
dc.relation.isPartOfInternational Journal of Disaster Risk Reduction
dc.rightsCC BY 4.0en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.titleGreat expectations for earthquake early warnings on the United States West Coast
dc.typeJournal article
pubs.elements-id457312
pubs.organisational-groupOther
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