Truaa Earthquake Early Warning System for Israel –Operational Stage and the Public’s Perspective
| Autor: | Nof, Ran Novitsky, Yagoda-Biran, Gony, Zwebner, Yonat |
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| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Zdroj: | XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) |
| Popis: | Truaa - Israel’s Earthquake Early Warning System (EEWS), is in operational mode since January 27th, 2022. Israel is amongst the few countries in the world to run a national, government- operated EEWS. Building and operating such a system involves not only many technical challenges, but also considering the social aspects of alert strategy and public’s perceptions.In the determination of an alert magnitude threshold, there is an inherent tradeoff between urgency and necessity. In this presentation we combine three independent data sets to inspect Israel’s alerting strategy: (1) We analyze the performance of the EEWS in the past two years to derive uncertainties of earthquake early warning alerts in Israel; (2) We re-project these uncertainties to the historic earthquake catalog of 2010-2020 and (3) We analyze a dataset of unnecessary injuries following missile alerts, to estimate the potential toll of unnecessary earthquake alerts.We then present the social point of view of alerts in Israel, as obtained by a first-of-its-kind questionnaire in Israel, focusing on people’s perceptions and perspective on earthquake alerts.Taken together, we find that the expected injury toll from unnecessary alerts is an order of magnitude lower than the potential damage of shorter reaction time (the time period between the alert and s-wave arrival) and that the public’s preferences may allow the alerting strategy to be less conservative, and to accommodate the EEWS uncertainties and limitation by allowing potentially faster alerts. The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) |
| Databáze: | OpenAIRE |
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