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On January 15, 2022, the Hunga-Tonga-Hunga-Ha'apai (Tonga) volcano erupted and triggered a tsunami forecasted to reach North America. This event provided a unique opportunity to investigate risk perception and communication among coastal emergency managers and emergency program coordinators (EMs). In response, this research explores 1) how risk can be communicated most effectively and 2) how risk perceptions associated with “distant” tsunami alerts and warnings affect EMs' willingness to issue emergency alerts. A purposive sample of coastal EMs (n = 21) in the U.S. Pacific Northwest participated in semi-structured interviews. Participants represented Tribal, county, state, and federal agencies in Washington, Oregon, and California. Interview transcripts were deductively coded and thematically analyzed. Participants perceived low risk from the Tonga tsunami but took precautionary measures and alerted the public. Participants described how their actions were driven by community characteristics and the anticipated reactions to messaging among residents. Many reported the need to balance notifying the public and avoiding the negative impacts of their messaging (e.g., “crying wolf,” panic, curiosity). The unique nature of the event led to identification of unanticipated facilitators and barriers to decision- making among participants. These findings can inform distant tsunami risk communication and preparedness for coastal communities.
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This content will become publicly available on February 1, 2026
Emergency managers’ challenges with wildfires and related cascading hazards in California
This study investigates the complexities faced by emergency managers in wildfire-prone areas to uncover pressing issues and potential solutions. Four themes are discerned through three focus group discussions with emergency managers from nine counties across California. First, there is unequal access to resources for both risk assessment and response, with counties that have fewer resources facing significant challenges in effectively managing wildfire risks. Second, effective risk communication depends on the available resources and the unique characteristics of each community. Participants stress the need for improved communication tools to reach vulnerable groups (e.g., seniors, individuals with disabilities, non-English-speaking residents). Third, the complexity and confusion surrounding multi-level collaboration in wildfire management is a recurring theme. Participants note that unclear roles and responsibilities between state and federal agencies hinder response efforts, underscoring the need for better coordination and transparent communication at all levels. Fourth, innovative responses (e.g., creative evacuation strategies, collaborative efforts) are recognized as imperative for managing wildfires and their cascading impacts in resource-constrained areas. The findings highlight that achieving equitable and effective preparation, response, and resilience for vulnerable communities requires a comprehensive understanding of wildfire severity and community susceptibility, coupled with active collaboration among emergency managers, policymakers, and both governmental and non-governmental organizations.
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- PAR ID:
- 10574742
- Publisher / Repository:
- Elsevier
- Date Published:
- Journal Name:
- Journal of Environmental Management
- Volume:
- 374
- Issue:
- C
- ISSN:
- 0301-4797
- Page Range / eLocation ID:
- 124008
- Subject(s) / Keyword(s):
- Wildfires Cascading hazards Emergency managers Emergency response Communities Disadvantaged communities Risk communication
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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