Events That Happened on April 28
- 1789 CEMutiny on the Bounty
- 1984 CEInternational Convention on Standards of Training, Certification and Watchkeeping for Seafarers
- 1996 CEPort Arthur massacre
- 1796 CEArmistice of Cherasco
- 1879 CETarnovo Constitution
- 1949 CELondon Declaration
- 1952 CETreaty of Taipei
- 2011 CE2011 Marrakech bombing
- 1817 CERush–Bagot Treaty
- 1941 CEGudovac massacre
- 1992 CEConstitution of Ghana
- 1994 CEProtocol on Economic Relations
- 2014 CEEnhanced Defense Cooperation Agreement
- 2020 CE2020 Afrin bombing
- 2023 CEMissile strike on Uman
- 2025 CE2025 Saada prison airstrike
- 1799 CERastatt Envoy Assassination
- 1929 CELa Gabaldonera
- 2025 CE2025 massacres of Syrian Druze
- 1965 CEBelgium-Morocco Bilateral Investment Treaty
- 1994 CEFrance-Turkmenistan Bilateral Investment Treaty
- 1995 CEChile-Portugal Bilateral Investment Treaty
- 1998 CEEgypt-State of Palestine Bilateral Investment Treaty
- 1998 CECroatia-Kingdom of the Netherlands Bilateral Investment Treaty
- 1998 CEFrance-Honduras Bilateral Investment Treaty
- 1999 CEEgypt-Portugal Bilateral Investment Treaty
- 2000 CEEgypt-Zambia Bilateral Investment Treaty
Natural Disasters on April 28
Records from scientific disaster catalogs that fall on this calendar day. All disaster records
- 1903 CEEarthquake — Turkey, Malazgirt (Ms 6.3)· 3,560 deaths
- 1714 CEEarthquake — Japan, Oomati· 56 deaths
- 1995 CEFlood: Ethiopia (1995-04-28)· 27 deaths
- 2003 CEFlood: Argentina (2003-04-28)· 24 deaths
- 1935 CEEarthquake — China, Sichuan Province (Ms 6)· 2 deaths
- 2021 CEEarthquake — India, Assam (Mw 6)· 2 deaths
- 1919 CESnowmelt Flooding: Sweden (1919-04-28)· 2 deaths
- 1942 CEFlash Flooding: France (1942-04-28)· 1 deaths
- 1998 CEKilauea· 1 deaths
- 1991 CEFlood: United States of America (1991-04-28)· 0 deaths
- 2022 CEFlood: Canada (2022-04-28)· 0 deaths
- 2017 CEFlood: United States of America (2017-04-28)· 0 deaths
- 1996 CEFlash Flooding: Spain (1996-04-28)· 0 deaths
- 2018 CEFlood: Burundi (2018-04-28)· 0 deaths
- 1992 CEFlood: Uzbekistan (1992-04-28)· 0 deaths
- 1911 CEM 7.4 - 128 km SSW of Tarauacá, Brazil
- 1972 CEM 7.2 - 192 km NW of Panguna, Papua New Guinea
- 2016 CEM 7.0 - 3 km NW of Norsup, Vanuatu
- 2016 CEEarthquake — Vanuatu Islands (Mw 7)
- 1995 CEM 6.9 - 107 km ENE of Shikotan, Russia
- 2001 CEM 6.9 - Fiji region
- 2017 CEEarthquake — Philippines, Sarangani (Mw 6.9)
- 2017 CEM 6.9 - 31 km SW of Burias, Philippines
- 1997 CEM 6.8 - Prince Edward Islands region
- 2012 CEM 6.6 - 76 km W of Neiafu, Tonga