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Related Experiment Video

Updated: Jun 25, 2026

Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling

Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling

Published on: August 5, 2016

Implications of an inverse branching aftershock sequence model.

D L Turcotte¹, S G Abaimov, I Dobson

¹Department of Geology, University of California, Davis, California 95616, USA. turcotte@geology.ucdavis.edu

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics

|March 5, 2009

Summary

The branching aftershock sequence (BASS) model simulates earthquake aftershocks using a self-similar statistical process. This study explores how varying the magnitude difference parameter affects aftershock sequences, including unusual growth patterns.

Related Experiment Videos

Last Updated: Jun 25, 2026

Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling

Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling

Published on: August 5, 2016

Area of Science:

Geophysics and seismology
Statistical modeling
Complex systems

Background:

Earthquake aftershocks follow complex temporal and magnitude patterns.
The branching aftershock sequence (BASS) model offers a statistical framework for understanding these sequences.
The model's behavior is governed by key parameters, notably the magnitude difference between parent and daughter events.

Purpose of the Study:

To investigate the behavior of the BASS model across a range of the magnitude difference parameter (Deltam*).
To explore scenarios where aftershock sequences exhibit exponential growth, deviating from typical decay.
To discuss the broader applicability of self-similar branching processes beyond seismology.

Main Methods:

Analysis of the BASS model's statistical properties.
Simulation and theoretical exploration of the model's dynamics.
Examination of the impact of varying the Deltam* parameter, including negative values.

Main Results:

The BASS model can exhibit exponential growth in event numbers with time when Deltam* is negative.
The model's behavior is sensitive to the magnitude difference parameter, influencing sequence decay or growth.
Self-similar branching processes show potential for modeling phenomena in diverse fields.

Conclusions:

The BASS model provides a flexible framework for understanding earthquake aftershock sequences.
Variations in the parent-daughter magnitude difference can lead to distinct aftershock behaviors.
The principles of self-similar branching have wide-ranging implications for scientific modeling.