[1]LIAO Shirong,YANG Ting,ZHANG Hongcai,et al.Fast Detection and Relocation of the 2021 Shuangbai MS5.1 Earthquake Sequences in Yunnan[J].Journal of Seismological Research,2021,44(04):515-520.
Copy
Fast Detection and Relocation of the 2021 Shuangbai MS5.1 Earthquake Sequences in Yunnan
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
44
Number of periods:
2021 04
Page number:
515-520
Column:
Public date:
2021-11-10
- Title:
- Fast Detection and Relocation of the 2021 Shuangbai MS5.1 Earthquake Sequences in Yunnan
- Keywords:
- the Shuangbai earthquake; deep learning earthquake detection; double difference location; seismogenic fault
- CLC:
- P315.6
- DOI:
- -
- Abstract:
- At 19:46 on June 10,2021,an MS5.1 earthquake occurred in Shuangbai County,Yunnan Province,and another ML4.6 earthquake succeeded on June 28.In this paper,the earthquake detection algorithm based on deep learning is used to detect the continuous seismic waveforms 20 days after the mainshock.Then,phase association,magnitude measurement,earthquake location and relocation are carried out,and a complete catalog of earthquake sequence is obtained.The sequence contains a total of 1 713 earthquakes,among which 623 more earthquakes are detected than by the manual method.The magnitudes(ML)ranges from-0.8 to 5.1.The study shows that the aftershocks of the Shuangbai MS5.1 earthquake and the ML4.6 earthquake are generally distributed in NNE direction,and the seismogenic faults of the two earthquakes are steep and nearly vertical.The seismogenic fault is shallow in the northeast and deep in the southwest,and the fault plane is narrow.The aftershocks of the ML4.6 earthquake are located below the aftershocks of the MS5.1 earthquake; this indicates that the two main earthquakes may be independent events.The seismogenic fault of the two earthquake is a concealed,strike-slip fault located to the southwest of the Chuxiong-Jianshui fault.
- References:
- -
- Similar References:
Memo
-
Last Update:
2021-11-10