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The RAMONES Service for Rapid Assessment of Seismic Moment and Radiated Energy in Central Italy: Concepts, Capabilities, and Future Perspectives
Seismological Research Letters ( IF 2.6 ) Pub Date : 2021-05-01 , DOI: 10.1785/0220200348
Daniele Spallarossa 1, 2 , Matteo Picozzi 3 , Davide Scafidi 1 , Paola Morasca 2 , Chiara Turino 1 , Dino Bindi 4
Affiliation  

We present Rapid Assessment of MOmeNt and Energy Service (RAMONES), a service for disseminating through a web interface, the estimates of seismic moment (⁠M0⁠) and radiated energy (⁠ER⁠) for earthquakes occurring in central Italy with local magnitudes above 1.7. The service is based on a fully‐automatic procedure developed for downloading and processing open seismological data from the European Integrated Data Archive, Italian Civil Protection repository, and Incorporated Research Institutions for Seismology (IRIS). In its actual configuration, RAMONES uses the seismic catalog generated through the event webservice of the Italian Institute of Geophysics and Volcanology (compliant with International Federation of Digital Seismograph Networks standards) to guide the data download. The concept of RAMONES is to estimate M0 and ER from features extracted directly from recordings, namely the S‐wave peak displacement (⁠PDS⁠) and the integral of the squared velocity (⁠IV2S⁠) evaluated over the S‐wave window at local distances. A data set composed of 6515 earthquakes recorded in central Italy between 2008 and 2018 was used to calibrate the attenuation models relating M0 to PDS and ER to IV2S⁠, including station corrections. The calibration values for M0 and ER were extracted from the source spectra obtained by applying a decomposition approach to the Fourier amplitude spectra known as the generalized inversion technique. To test the capabilities of RAMONES, we validate the attenuation models by performing residual analysis over about 60 earthquakes occurring in 2019 that were used for the spectral decomposition analysis but not considered in the calibration phase. Since January 2020, a testing operational phase has been running, and RAMONES has analyzed about 800 earthquakes by September 2020. The distribution of the source parameters and their relevant scaling relationships are automatically computed and disseminated in the form of maps, parametric tables, figures, and reports available through the RAMONES web interface.

中文翻译:

快速评估意大利中部地震矩和辐射能的RAMONES服务:概念,能力和未来前景

我们介绍了MOmeNt和能源服务(RAMONES)的快速评估,这是一项通过Web界面进行传播的服务,它对意大利中部发生的地震,局部震级高于1.7。该服务基于开发的全自动程序,可从欧洲综合数据档案库,意大利民防资料库和美国地震综合研究机构(IRIS)下载和处理开放的地震数据。在其实际配置中,RAMONES使用通过意大利地球物理与火山研究所的事件Web服务(符合国际数字地震仪网络联合会标准)生成的地震目录来指导数据下载。RAMONES的概念是根据直接从记录中提取的特征来估算M0和ER,即S波峰位移(⁠PDS⁠)和在局部S窗口上评估的平方速度积分(⁠IV2S⁠)距离。使用由2008年至2018年在意大利中部记录的6515地震组成的数据集来校准M0与PDS和ER与IV2S⁠的衰减模型,包括站台校正。M0和ER的校准值是从通过对傅立叶振幅谱采用分解方法(称为广义反演技术)进行分解而获得的源谱中提取的。要测试RAMONES的功能,我们通过对2019年发生的大约60次地震进行残差分析来验证衰减模型,这些地震用于频谱分解分析但未在校准阶段考虑。自2020年1月以来,测试运行阶段一直在进行,RAMONES到2020年9月已分析了约800次地震。震源参数的分布及其相关的比例关系会自动计算并以地图,参数表,数字,并通过RAMONES Web界面提供报告。
更新日期:2021-04-27
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