Analysis on the predicting significance of mid-strong earthquake swarms in Gansu and its surrounding areas. Issue 1 (February 2021)

• Record Type: Journal Article
• Authors: Dou, Xiying; Wang, Enli; Zhang, Hui; Zhang, Bo; Zhang, Liqiong; Jiang, Jiajia
• Is Part Of: IOP conference series. Volume 660:Issue 1(2021)
• Publication Date: 2021-02
• Subjects: Earth sciences -- Periodicals; Environmental sciences -- Congresses; Environmental sciences -- Periodicals; 550.5
• DOI: 10.1088/1755-1315/660/1/012110
• Languages: English
• ISSNs: 1755-1307

Abstract

Abstract: In order to obtain the accurate prediction efficiency of earthquake swarms in Gansu province, the statistics of minor-moderate earthquake swarms that have occurred in Gansu since 1980 are performed. The earthquake swarm parameters are calculated and the precursory earthquake swarms are extracted based on the criteria of distinguishing the abnormal earthquake swarm. The precursory swarms obtained were analyzed correspondingly with the earthquakes with M≥5 in and around Gansu, and the prediction efficiency of them was evaluated. The accurate precursor index of the earthquake swarms in Gansu were summarized, which provided a judging basis for the seismic trending and made a certain contribution to earthquake prevention and disaster reduction.