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Real-time Earthquake Monitoring using Deep Learning: a case study on Turkey Earthquake Aftershock Sequence.

Authors :
Wei Li
Chakraborty, Megha
Köhler, Jonas
Quinteros-Cartaya, Claudia
Rümpker, Georg
Srivastava, Nishtha
Source :
Solid Earth Discussions. 7/5/2023, p1-28. 28p.
Publication Year :
2023

Abstract

Seismic phase picking and magnitude estimation are essential components of real-time earthquake monitoring and earthquake early warning systems. Reliable phase picking enables the timely detection of seismic wave arrivals, facilitating rapid earthquake characterization and early warning alerts. Accurate magnitude estimation provides crucial information about an earthquake’s size and potential impact. Together, these steps contribute to effective earthquake monitoring, enhancing our ability to implement appropriate response measures in seismically active regions and mitigate risks. In this study, we explore the potential of deep learning in real-time earthquake monitoring. To that aim, we begin by introducing DynaPicker which leverages dynamic convolutional neural networks to detect seismic body wave phases. Subsequently, DynaPicker is employed for seismic phase picking on continuous seismic recordings. To showcase the efficacy of Dynapicker, several open-source seismic datasets including window-format data and continuous seismic data are used to demonstrate it’s performance in seismic phase identification, and arrival-time picking. Additionally, DynaPicker’s robustness in classifying seismic phases was tested on the low-magnitude seismic data polluted by noise. Finally, the phase arrival time information is integrated into a previously published deep-learning model for magnitude estimation. This workflow is then applied and tested on the continuous recording of the aftershock sequences following the Turkey earthquake to detect the earthquakes, seismic phase picking and estimate the magnitude of the corresponding event. The results obtained in this case study exhibit a high level of reliability in detecting the earthquakes and estimating the magnitude of aftershocks following the Turkey earthquake. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
18699537
Database :
Academic Search Index
Journal :
Solid Earth Discussions
Publication Type :
Academic Journal
Accession number :
171885838