The November 10, 2024 earthquake and engineering and seismometric survey of the buildings of secondary comprehensive school No. 64 in Irkutsk

The article presents the results of the analysis of macroseismic and instrumental data on a moderate earthquake (KR=12.7, mb=4.7) recorded on November 10, 2024 at 12h11m in the Eastern Sayan Mountains. Macroseismic data for this seismic event were collected using an online questionnaire. A total of 353 responses were received from respondents, 206 of which were from Irkutsk. Instrumental data were obtained by stations of the regional network, as well as by a temporary engineering seismometric station in one of the buildings of Secondary School No. 64 in Irkutsk, where an assessment of the technical condition of the building was being carried out at the time of the earthquake. The old school building was put into operation in 1955, the new one – in 2020. The survey was carried out by recording microseisms using “Baikal” equipment with A1638 seismometers. As a result, it was established that the new building of School No. 64 is in good technical condition. The old building, built in 1955, requires a thorough additional survey in order to assess its dynamic parameters.