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Developing effective warning systems: Ongoing research at Ruapehu volcano, New Zealand

Citation

Leonard, GS and Johnston, DM and Paton, D and Christianson, A and Becker, J and Keys, H, Developing effective warning systems: Ongoing research at Ruapehu volcano, New Zealand, Journal of Volcanology and Geothermal Research, 172, (2008) pp. 199-215. ISSN 0377-0273 (2008) [Refereed Article]

DOI: doi:10.1016/j.jvolgeores.2007.12.008

Abstract

Purpose: This paper examines the unique challenges to volcanic risk management associated with having a ski area on an active volcano. Using a series of simulated eruption/lahar events at Ruapehu volcano, New Zealand, as a context, a model of risk management that integrates warning system design and technology, risk perceptions and the human response is explored. Principal results: Despite increases in the observed audibility and comprehension of the warning message, recall of public education content, and people's awareness of volcanic risk, a persistent minority of the public continued to demonstrate only moderate awareness of the correct actions to take during a warning and failed to respond effectively. A relationship between level of staff competence and correct public response allowed the level of public response to be used to identify residual risk and additional staff training needs. The quality of staff awareness, action and decision-making has emerged as a critical factor, from detailed staff and public interviews and from exercise observations. Staff actions are especially important for mobilising correct public response at Ruapehu ski areas due to the transient nature of the visitor population. Introduction of education material and staff training strategies that included the development of emergency decision-making competencies improved knowledge of correct actions, and increased the proportion of people moving out of harm's way during blind tests. Major conclusions: Warning effectiveness is a function of more than good hazard knowledge and the generation and notification of an early warning message. For warning systems to be effective, these factors must be complemented by accurate knowledge of risk and risk management actions. By combining the Ruapehu findings with those of other warning system studies in New Zealand, and internationally, a practical five-step model for effective early warning systems is discussed. These steps must be based upon sound and regularly updated underpinning science and be tied to formal effectiveness evaluation, which is fed back into system improvements. The model presented emphasises human considerations, the development of which arguably require even more effort than the hardware components of early warning systems. © 2008 Elsevier B.V. All rights reserved.

Item Details

Item Type:Refereed Article
Research Division:Earth Sciences
Research Group:Geology
Research Field:Volcanology
Objective Division:Environment
Objective Group:Environmental Policy, Legislation and Standards
Objective Field:Environmental Education and Awareness
Author:Paton, D (Professor Douglas Paton)
ID Code:51943
Year Published:2008
Web of Science® Times Cited:30
Deposited By:Psychology
Deposited On:2008-05-13
Last Modified:2014-12-18
Downloads:0

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