10.2205/ESDB-SAD-FE 20231904202316393333 Ernest Kedrov crossref@gcras.ru World Data Center for Solar-Terrestrial Physics, Geophysical Center of the Russian Academy of Sciences Geophysical Center RAS, Moscow, Russia Vitaly Ishkov World Data Center for Solar-Terrestrial Physics, Geophysical Center of the Russian Academy of Sciences Ernest Kedrov Geophysical Center of the Russian Academy of Sciences https://orcid.org/0000-0003-1837-1312 Natalia Sergeyeva World Data Center for Solar-Terrestrial Physics, Geophysical Center of the Russian Academy of Sciences Michael Nisilevich World Data Center for Solar-Terrestrial Physics, Geophysical Center of the Russian Academy of Sciences Ludmila Zabarinskaya World Data Center for Solar-Terrestrial Physics, Geophysical Center of the Russian Academy of Sciences The Database includes data on solar flare events of the 23, 24 and 25 cycles of solar activity. The entire massif of flares with x-ray class equal to or greater than M1 is presented in one system. The database also includes data on H-alpha flares from 1972 to 2017. The data are stored in the World Data Center for Solar-Terrestrial Physics, Moscow (http://www.wdcb.ru/stp/index.html). The data are freely accessible. 2018 2018 2023 Geophysical Center of the Russian Academy of Sciences Moscow, Russia World Data Center for Solar-Terrestrial Physics Moscow, Russia 10.2205/ESDB-SAD-FE 20232803202316393333 http://esdb.wdcb.ru/doi/2018/esdb-sad-fe.html Institute of Solar-Terrestrial Physics, Siberian Branch of the Russian Academy of Sciences Alexander Borovik Institute of Solar-Terrestrial Physics, Siberian Branch of the Russian Academy of Sciences Anton Zhdanov Institute of Solar-Terrestrial Physics, Siberian Branch of the Russian Academy of Sciences 2022 2023 The catalog of solar flare events is the integrated system of data set specifications of 1972-2017 H-alpha flares. The catalog includes basic characteristics of 135718 events and flare-related dynamic phenomena in X-ray and optical ranges. The catalog is an open document to be updated. 10.2205/ESDB-SAD-FE-04 20232803202316393333 http://esdb.wdcb.ru/doi/2023/esdb-sad-fe-04.html