Яндекс.Метрика

A.A. Emanov, I.F. Eshkunova

Выпуск: 6 , Том: 61 , Год издания: 2025
Сериальное издание: Izvestiya, Physics of the Solid Earth
Страницы: 938-950

Аннотация

This work uses open data of an international experiment in Central Mongolia, in particular, data from temporary stations installed in the area of Lake Klubsugul. This network consisted of 26 stations and operated in 2014-2016. This time interval includes an interesting to consider, fairly large event with an aftershock process, which occurred directly under Lake Klubsugul on December 5, 2014, with magnitude ML = 5.2. Event detection and location is performed automatically using a publicly available AI-based detector, EqTransformer, designed simultaneously to detect earthquake signals and determine P and S phases from single station data records, a phase associator using grid search, and an event locator Hypoinverse, which is also open source software. The following results were obtained: the source area of the Klubsugul earthquake of 2014 has no contact with the source area of the Klubsugul earthquake of 2021 and is not connected with known faults in this area; at the level of weak earthquakes ML < 2, increased activity is noted in the northern part of the Darkhad depression, as well as along the western side of the Klubsugul depression; from the west in the seismicity structure, an increased number of earthquakes is noted not only in the Busingol and Belin depressions, but also in the internal regions of the Shishkhid Highlands; during the experiment, there were no earthquakes in the area of the focal zone of the Klubsugul earthquake of 2021 and in the area of development of the Darkhad earthquake swarm in 2022 - 2023.
индекс в базе ИАЦ: 021238