“An earthquake of magnitude 5.6 was recorded on Thursday at 14:23 (06:23 Moscow time). Its epicenter was located ... 91 km south-east of the island of Simushir. The earthquake source was at a depth of 83 kilometers, ”said Elena Semenova, head of the Yuzhno-Sakhalinsk seismic station.
According to her, three minutes before the first earthquake, an earthquake of magnitude 4.2 was recorded.