Kushiro IT Cluster Promotion Association (East Hokkaido IoT Executive Committee) will hold a hackathon on September 22 and 23, and its theme is "East Hokkaido + IoT Hackathon! IoT will solve the problems of tourism and disaster prevention. "W would like to hear from those who had traveled in Hokkaido when the 2018 Hokkaido Eastern Iburi Earthquake occurred. We will appreciate your contribution even though this survey sometimes asks the same questions several times. Your opinion will help the future disaster control in Hokkaido.