9:15 AM - 9:30 AM
*Jun Okada1, Katsuya Ohmi2, Shigeo Matsuura2, Takuya Yamamura2, Yu Nihara3, Hideki Koshiya3 (1.Volcanology Research Department (Sendai Office), Meteorological Research Institute, JMA, 2.Seismology and Volcanology Division, Sendai Regional Headquarters, JMA, 3.Regional Volcanic Observation and Warning Center, Sendai Regional Headquarters, JMA)