Pada tanggal 9 Februari 1975 jam 11.45 lebih dari 33 detik terjadi gempa bumi di daerah Sukabumi dan sekitarnya akibat tersebut banyak bangunan - bagunan yang rusak retak - retak bahkan ada yang roboh pula.
I came up to Tokyo by flight on January 18th (and returned to Kagoshima on 20 th) to talk with staffs of the JSPS ( Japan Society for the Promorion of Science). We talked about the successful Krakatau Volcano Research and its related works which were made jointly together with Indonesian excellent co - workers.