Preprints
https://doi.org/10.5194/nhess-2021-42
https://doi.org/10.5194/nhess-2021-42

  19 Feb 2021

19 Feb 2021

Review status: a revised version of this preprint is currently under review for the journal NHESS.

Brief communication: Appropriate messaging is critical for effective earthquake early warning systems

Meng Zhang1, Xue Qiao2,3, Barnabas C. Seyler1, Baofeng Di1,4, Yuan Wang1, and Ya Tang1,3 Meng Zhang et al.
  • 1Department of the Environment, College of Architecture and Environment, Sichuan University, Chengdu 610065, China
  • 2Institute of New Energy and Low-carbon Technology & Healthy Food Evaluation Research Center, Sichuan University, Chengdu, China
  • 3State Key Laboratory of Hydraulics and Mountain River Engineering, Sichuan University, Chengdu 610065, China
  • 4Institute for Disaster Management and Reconstruction, Sichuan University, Chengdu 610200, China

Abstract. The earthquake early warning systems (EEWSs) in China have achieved great progress, with warning alerts being successfully delivered to the public in some regions. We examined the performance of the EEWS in China's Sichuan Province during the 2019 Changning Earthquake. Although its technical effectiveness was tested with the first alert released 10 s after the earthquake, we found that a big gap existed between the EEWS's message and the public's response. We highlight the importance of EEWS alert effectiveness and public participation for long-term resiliency, such as delivering useful alert messages through appropriate communication channels and training people to understand and properly respond.

Meng Zhang et al.

Status: final response (author comments only)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on nhess-2021-42', Anonymous Referee #1, 09 Mar 2021
    • AC2: 'Response to comments from Referee #1', Meng Zhang, 13 May 2021
  • RC2: 'Comment on nhess-2021-42', Anonymous Referee #2, 17 Mar 2021
    • AC1: 'Response to comments from Referee #2', Meng Zhang, 13 May 2021

Meng Zhang et al.

Meng Zhang et al.

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Short summary
Earthquake early warning system (EEWS) can help reduce losses but its effectiveness depends on adequate public's perception and understanding of EEWS. This study examined the performance of the EEWS in China's Sichuan Province during the 2019 Changning Earthquake. We found a big gap existed between the EEWS's message, the public's perception of it, and their response. The study highlights the importance of gauging EEWS alert effectiveness and public participation for long-term resiliency.
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