TY JOUR TI ASSESSMENT OF AUDIENCE ENGAGEMENT INDICES ON OFFICIAL GOVERNMENT PAGES (USING THE EXAMPLE OF PUBLIC PUBLICATIONS OF THE MINISTRY OF EMERGENCY SITUATIONS OF RUSSIA) KW social networks KW official community KW engagement indices KW Russian Ministry of Emergency Situations KW Moscow KW St. Petersburg KW Sevastopol JO NATURAL AND MAN-MADE RISKS (PHYSICO-MATHEMATICAL AND APPLIED ASPECTS) AU Oluhov, N.V. PY 2026 IS 2026 PB Saint-Petersburg University of State Fire Service of Emercom of Russia