Earthquakes within Earthquakes: Patterns in Rupture Complexity

This is a Preprint and has not been peer reviewed. The published version of this Preprint is available: This is version 4 of this Preprint.


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Philippe Danré, Jiuxun Yin, Bradley Lipovsky, Marine Denolle


Earthquake source time functions carry information about the complexity of seismic rupture. We explore databases of source time functions of earthquakes and find that source time functions are composed of distinct peaks that we call subevents. We observe that earthquake complexity, as represented by the number of subevents, grows with earthquake magnitude. We find that subevent magnitudes are nearly proportional to their corresponding main event magnitude. We show that the main event magnitude can be estimated after observing only the first few subevents.



Earth Sciences, Geophysics and Seismology, Physical Sciences and Mathematics


complexity, dynamics, eartthquakes, source time function


Published: 2019-01-17 03:51

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GNU Lesser General Public License (LGPL) 2.1

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