Research on the monitoring and seismicity characteristics of the MS4.9 earthquake sequence in Rong County，Sichuan Province，2019

Abstract

Through the analysis of the earthquake sequence monitoring，seismic geology，seismicity background and regional seismicity of the epicentral and adjacent regions of the MS4.9 earthquake in Rong County，the results show that the sequence is of normal swarm type due to a silence to active process before the MS4.9 earthquake happens，Seismological parameters of the MS4.9 earthquake epicentral region and the Mt. Huaying fault zone and Mabian seismic zone are normal after the MS4.9 earthquake. It is believed that the seismogenic faults of the Rong County MS4.9 earthquake is Rong-Weiyuan base fault.The activity of the MS5—6 earthquakes on Mt. Huaying fault zone and its adjacent region since 2018 have corresponding connections with the Jiuzhaigou MS7.0 earthquake in August 2017 on the east Kunlun fault zone of the western Sichuan Province.

Keywords

• rong county ms4.9 earthquake
• earthquake monitoring
• seismicity characteristics
• seismogeniccauses