BackgroundAssistance from non-professional disaster volunteers (hereinafter, volunteers) is essential for disaster victims to recover physically and rebuild their lives; however, disaster victims in some areas are reluctant to accept assistance from volunteers. This study explored factors that may influence collaborative activities between volunteers and victims of earthquake disasters.MethodsFrom July to September 2008, a self-reporting questionnaire survey was conducted with all 302 leaders of neighborhood associations in a city within Niigata Prefecture at the time of the Niigataken Chuetsu-oki Earthquake in 2007. Each factor was determined based on the Health Belief Model. Multiple regression analysis was conducted, using collaborative activities as the objective variable.ResultsFrom 261 valid responses received (response rate 86.4%), 41.3% of leaders collaborated with volunteers, and 60.2% of associations had residents who collaborated with volunteers. Collaboration with volunteers was significantly and positively related to perceived severity of an earthquake disaster (standardized partial regression coefficient β = 0.224, p<0.001) and neighborhood association activities during the earthquake disaster (β = 0.539, p<0.001). A positive and marginally significant relation was found between such collaboration and sense of coherence within a community (β = 0.137, p = 0.06), social capital (β = 0.119, p = 0.08), and perceived benefits (β = 0.116, p = 0.09).ConclusionCollaboration between disaster victims and volunteers during the response to an earthquake may require the preemptive estimation of damage by residents during normal times and the enhancement of neighborhood association activities during a disaster. For residents to have such estimation abilities, public institutions should provide information related to anticipated disaster damage and appropriate disaster prevention training and education. In addition, residents should create a disaster prevention map with other residents. Lastly, promoting neighborhood association activities may require the participation of many residents in disaster drills and education as well as a preemptive discussion of neighborhood activities during a disaster.

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Furniture anchoring was found to be associated with risk awareness, risk perception, disaster preparedness information provided by government to residents, knowledge of earthquakes, participation in voluntary disaster preparedness activities, nonwooden structures, and marital status. An increase in furniture anchoring is important and can be achieved through education and training in daily life.

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Introduction:The Ministry of Health, Labor, and Welfare of Japan have suggested local governments establish Health, Medical, and Welfare Coordination Headquarters at the time of disaster. Gathering and processing information is one of the key functions of the headquarters. The study aims to clarify the required functions of information for the headquarters.Method:A series of interview surveys and observations were conducted, including for local governments and experts in disaster response. The contents were analyzed and required standard functions and procedures had been extracted.Results:The most important aspect of information gathering is its use in decision-making in matching needs and demands with resources. Needs and demands are based on damage and situation of the casualties. Resources can be categorized into human, material, financial, and informational. Because the headquarters have to process much information, it is important to clarify the objective and strategy of disaster response. The headquarters gather various quantitative and qualitative information using information and communication technology, telephone, meeting and other methods. Qualitative information can be categorized as: expected, surprising (unexpected), and unusual (rare) contents. For expected contents, quantification or estimation of needs from information in normal time or limited information immediately after the disaster and displaying or further analyzing by geographic information systems is useful. By surprising contents or case reports, additional responses or strategies will need to be reviewed.Conclusion:The procedure, including information gathering and decision-making, follows the OODA (observe, orient, decide, act) loop. According to our mail survey of all 47 prefectural local governments in 2019, 89% were planning to establish the headquarters. However, only 36% had prepared a manual. Using the results of this study, a standard strategic manual for the operations of the headquarters is being developed and brushed up.