The urgency-necessity earthquake alert trade-off: considering the public response factor

Ran Novitsky Nof (), Gony Yagoda-Biran and Yonat Zwebner
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Ran Novitsky Nof: Geological Survey of Israel
Gony Yagoda-Biran: Geological Survey of Israel
Yonat Zwebner: Reichman University

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2025, vol. 121, issue 8, No 2, 8973 pages

Abstract: Abstract Implementing Earthquake Early Warning Systems’ (EEWS) alerting strategy entails a trade-off between urgency and necessity. Large uncertainties at initial stages might lead to issuing urgent alerts for non-damaging earthquakes. This, in turn, can lead to unnecessary indirect injuries caused by peoples’ responses to alerts. Conversely, necessary yet delayed alerts with higher certainties can lead to preventable harm. In this work, we aim to balance these approaches and optimize alerting strategies by integrating multidisciplinary datasets. First, we estimate potential costs associated with non-damaging earthquake alerts by integrating a unique dataset of indirect injuries caused by missile attacks in Israel with the uncertainties of Truaa, the operational Israeli EEWS. The findings reveal that injury costs from urgent alerts are much lower than those from delayed alerts. Additionally, we distributed a questionnaire in Israel following the February-2023 Kahramanmaraş, Türkiye earthquakes revealing the public’s preference for urgent alerts, despite alert uncertainties. By considering injury costs and social perspectives, we highlight the need to optimize alerting strategies and to consider reducing the alert magnitude threshold by incorporating social factors. This approach offers insights for making well-informed decisions to enhance the effectiveness of the Israeli EEWS.

Keywords: Earthquake early warning; EEW; EPIC; Public response; Truaa (search for similar items in EconPapers)
Date: 2025
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DOI: 10.1007/s11069-025-07155-w

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