Bollettino Sismico Italiano (BSI), I quadrimestre 2021

Bollettino Sismico Italiano, I quadrimestre 2021, version 1.0 contains 5282 earthquake locations in the Italian region and in the border region in the time frame between 01-01-2021 and 30-04-2021.
Data used have been recorded by the National Seismic Network, operated by Istituto Nazionale di Geofisica e Vulcanologia (INGV) and regional and international networks operated by several providers.
The BSI analysts revised event with M>=1.5 (1928), 42 of them whit a M>=3.5; to locate the earthquakes we used 639 stations which contributed to the locations with 43250 P phases and 28365 S phases.
The Bollettino Sismico Italiano is available in Quakeml format and is described on a 4 months basis by a pdf document, but is also available in the ISIDe data-base for the period 1985-today. Both Quakeml files and pdf document are available at CNT webpage (http://terremoti.ingv.it/bsi).

《意大利地震通报（Bollettino Sismico Italiano）》2021年第一四月度期、版本1.0，包含2021年1月1日至2021年4月30日期间，意大利境内及边境邻域内的5282个地震定位结果。
本数据集所用观测数据由意大利国家地球物理与火山学研究所（Istituto Nazionale di Geofisica e Vulcanologia，简称INGV）运维的国家地震台网，以及多家机构运维的区域和国际地震台网采集得到。
《意大利地震通报》（BSI）的分析人员对震级M≥1.5的1928个地震事件开展了修订工作，其中包含42个震级M≥3.5的地震事件；本次地震定位共使用了639个台站的观测数据，这些台站共提供了43250条P波到时与28365条S波到时数据用于定位计算。
《意大利地震通报》支持以Quakeml格式获取，其每4个月更新一期的配套说明文档以PDF格式发布；同时该数据集1985年至今的全时段数据可在ISIDe数据库中查询。Quakeml格式文件与PDF说明文档均可通过CNT官方网页（http://terremoti.ingv.it/bsi）获取。