CrazyBeachball: A MATLAB GUI-based software package for focal mechanism inversion

IF 4.1 4区地球科学 Q3 Earth and Planetary Sciences

Earthquake Science Pub Date : 2025-09-02 DOI:10.1016/j.eqs.2025.06.003

Xianwei Zeng , Chunquan Yu

引用次数: 0

Abstract

We present CrazyBeachball, a MATLAB-based graphical user interface (GUI) software package designed for focal mechanism inversion using P-wave first-motion polarity and S/P amplitude ratio data. CrazyBeachball integrates seismic waveform visualization, first-motion polarity picking, and focal mechanism inversion into a single, interactive platform. Unlike conventional methods that involve separate, independent steps, CrazyBeachball streamlines the process and eliminates the need for external data conversion. Its user-friendly interface allows for efficient focal mechanism determination, while its human-machine interaction facilitates enhanced quality control. We demonstrate its effectiveness by determining focal mechanisms for 21 aftershocks from the 2021 M_S6.4 Yangbi earthquake sequence, with results aligning with the regional stress field and fault zone geometry. This open-source software package also allows for user customization, enabling adaptation for specific research needs.

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CrazyBeachball：一个基于MATLAB gui的震源机制反演软件包

我们提出了CrazyBeachball，一个基于matlab的图形用户界面（GUI）软件包，设计用于使用纵波第一运动极性和S/P振幅比数据进行震源机制反演。CrazyBeachball将地震波形可视化、第一运动极性提取和震源机制反演集成到一个交互平台中。不像传统的方法，涉及单独的，独立的步骤，CrazyBeachball简化了过程，消除了外部数据转换的需要。其用户友好的界面允许有效的焦点机构确定，而其人机交互有助于提高质量控制。我们通过确定2021年杨壁MS6.4地震序列的21次余震的震源机制来证明其有效性，结果与区域应力场和断裂带几何形状一致。这个开源软件包还允许用户自定义，使适应特定的研究需求。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Earthquake Science GEOCHEMISTRY & GEOPHYSICS-

CiteScore

1.10

自引率

8.30%

发文量

审稿时长

3 months

期刊介绍： Earthquake Science (EQS) aims to publish high-quality, original, peer-reviewed articles on earthquake-related research subjects. It is an English international journal sponsored by the Seismological Society of China and the Institute of Geophysics, China Earthquake Administration. The topics include, but not limited to, the following ● Seismic sources of all kinds. ● Earth structure at all scales. ● Seismotectonics. ● New methods and theoretical seismology. ● Strong ground motion. ● Seismic phenomena of all kinds. ● Seismic hazards, earthquake forecasting and prediction. ● Seismic instrumentation. ● Significant recent or past seismic events. ● Documentation of recent seismic events or important observations. ● Descriptions of field deployments, new methods, and available software tools. The types of manuscripts include the following. There is no length requirement, except for the Short Notes. 【Articles】 Original contributions that have not been published elsewhere. 【Short Notes】 Short papers of recent events or topics that warrant rapid peer reviews and publications. Limited to 4 publication pages. 【Rapid Communications】 Significant contributions that warrant rapid peer reviews and publications. 【Review Articles】Review articles are by invitation only. Please contact the editorial office and editors for possible proposals. 【Toolboxes】 Descriptions of novel numerical methods and associated computer codes. 【Data Products】 Documentation of datasets of various kinds that are interested to the community and available for open access (field data, processed data, synthetic data, or models). 【Opinions】Views on important topics and future directions in earthquake science. 【Comments and Replies】Commentaries on a recently published EQS paper is welcome. The authors of the paper commented will be invited to reply. Both the Comment and the Reply are subject to peer review.