当前位置: X-MOL 学术Earth Syst. Sci. Data › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Enriching the GEOFON seismic catalog with automatic energy magnitude estimations
Earth System Science Data ( IF 11.4 ) Pub Date : 2024-04-05 , DOI: 10.5194/essd-16-1733-2024
Dino Bindi , Riccardo Zaccarelli , Angelo Strollo , Domenico Di Giacomo , Andres Heinloo , Peter Evans , Fabrice Cotton , Frederik Tilmann

Abstract. We present a seismic catalog (Bindi et al., 2024, https://doi.org/10.5880/GFZ.2.6.2023.010) including energy magnitude Me estimated from P waves recorded at teleseismic distances in the range 20°≤Δ≤98° and for depths shorter than 80 km. The catalog is built starting from the event catalog disseminated by GEOFON (GEOFOrschungsNetz), considering 6349 earthquakes with moment magnitude Mw≥5 occurring between 2011 and 2023. Magnitudes are computed using 1 031 396 freely available waveforms archived in EIDA (European Integrated Data Archive) and IRIS (Incorporated Research Institutions for Seismology) repositories, retrieved through the standard International Federation of Digital Seismograph Networks (FDSN) web services (https://www.fdsn.org/webservices/, last access: March 2024). A reduced, high-quality catalog for events with Mw≥5.8 and from which stations and events with only few recordings were removed forms the basis of a detailed analysis of the residuals of individual station measurements, which are decomposed into station- and event-specific terms and a term accounting for remaining variability. The derived Me values are compared to Mw computed by GEOFON and with the Me values calculated by IRIS. Software and tools developed for downloading and processing waveforms for bulk analysis and an add-on for SeisComP for real-time assessment of Me in a monitoring context are also provided alongside the catalog. The SeisComP add-on has been part of the GEOFON routine processing since December 2021 to compute and disseminate Me for major events via the existing services.

中文翻译:

通过自动能量震级估计丰富 GEOFON 地震目录

摘要。我们提出了一个地震目录(Bindi 等人,2024 年,https://doi.org/10.5880/GFZ.2.6.2023.010),其中包括根据在 20°≤Δ≤98 范围内的远震距离记录的 P 波估计的能量震级 Me ° 且深度小于 80 公里。该目录是从 GEOFON (GEOFOrschungsNetz) 发布的事件目录开始构建的,考虑了 2011 年至 2023 年间发生的 6349 起矩震级 Mw≥5 的地震。震级是使用 EIDA(欧洲综合数据档案)中存档的 1 031 396 个免费波形计算的。和 IRIS(地震学联合研究机构)存储库,通过标准国际数字地震仪网络联合会 (FDSN) 网络服务检索(https://www.fdsn.org/webservices/,最后访问时间:2024 年 3 月)。对 Mw≥5.8 的事件进行简化的高质量目录,并从中删除只有少量记录的台站和事件,构成对各个台站测量残差进行详细分析的基础,并将其分解为特定于台站和事件的残差项和解释剩余可变性的项。将导出的 Me 值与​​ GEOFON 计算的 Mw 以及 IRIS 计算的 Me 值进行比较。目录中还提供了用于下载和处理批量分析波形的软件和工具,以及用于在监控环境中实时评估 Me 的 SeisComP 插件。自 2021 年 12 月以来,SeisComP 插件已成为 GEOFON 例行处理的一部分,用于通过现有服务计算和传播重大事件的 Me。
更新日期:2024-04-05
down
wechat
bug