Human behavioral response to earthquake ground motion has long been a subject of multidisciplinary interest and research. In most versions of seismic intensity scales, human perceptions and behavior are one component of the assignment of intensity. Public health research has shown that actions taken during earthquakes have a significant impact on the incidence of injury or the maintenance of safety. Based on this research, emergency managers and organizations promoting emergency preparedness have advocated strategies such as drop, cover, and hold on (DCHO) and promoted this safety measure through public education and annual drills. The “Did You Feel It?” (DYFI) mapping system (see Data and Resources) based on an online questionnaire developed and maintained by the U.S. Geological Survey has provided opportunities for those who have experienced an earthquake to report this experience worldwide since 2004. The DYFI questionnaire, although designed to assign intensity, also contains questions regarding the behavior in which one has engaged during the earthquake. The questionnaire includes other important information that may elucidate behavioral response to earthquakes, including assigned intensity, emotional reaction, and whether damage occurred at the location where the earthquake was experienced. The very large number of people who completed DYFI questionnaires following the July 2019 Ridgecrest, California, earthquakes provides a robust dataset for analysis and suggests that as intensity and levels of fear increase, behavior becomes more active in terms of physical movement to locations of presumed safety. Among active responses including DCHO, going to a doorway, and running outside, DCHO was the least likely to be implemented. The study provides possible explanations for low participation in DCHO despite active campaigns to promote this strategy.

中文翻译：

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2019年加利福尼亚州里奇克莱斯特市地震中的人类行为反应：基于“您感觉到了吗？”中的数据评估立即采取的行动

人类对地震地面运动的行为响应一直是多学科关注和研究的主题。在大多数地震烈度等级版本中，人类的感知和行为是烈度分配的组成部分之一。公共卫生研究表明，地震期间采取的行动对伤害发生或维护安全有重大影响。根据这项研究，应急管理人员和促进应急准备的组织提倡采取掉落，掩护和保持（DCHO）等策略，并通过公众教育和年度演练来推广这种安全措施。“你感觉到了吗？” （DYFI）制图系统（请参阅数据和资源），基于美国开发和维护的在线问卷 自2004年以来，地质调查局为那些经历过地震的人提供了机会，可以在世界范围内报告这种经历。DYFI调查表尽管旨在确定强度，但也包含有关地震发生时行为的问题。该调查表还包含其他一些重要信息，这些信息可以阐明对地震的行为响应，包括指定的强度，情绪反应以及在地震发生地点是否发生了破坏。在2019年7月加利福尼亚州里奇克莱斯特地震之后，完成DYFI问卷的人数众多，为分析提供了强大的数据集，并表明随着恐惧强度和水平的增加，行为在向假定安全地点运动时变得更加活跃。在包括DCHO，走到门口和在外面奔跑的积极回应中，DCHO被实施的可能性最小。这项研究提供了可能的解释，说明尽管积极开展了推广该策略的活动，但参与DCHO的人数较少。