Events That Happened on September 23
- 855 CETreaty of Prüm
- 2008 CEtung tung balerina shooting
- 1617 CEPeace of Busza
- 1821 CESiege of Tripolitsa
- 1868 CEGrito de Lares
- 1913 CEOhrid–Debar Uprising
- 1983 CEGulf Air Flight 771
- 1956 CERamat Rachel shooting attack
- 1971 CEConvention for the Suppression of Unlawful Acts against the Safety of Civil Aviation
- 1986 CE1986 Togolese coup d'état attempt
- 1995 CEThe Family: A Proclamation to the World
- 2009 CEVästberga helicopter robbery
- 1424 CEPeace of Špitál Field
- 1805 CETreaty of St. Peters (1805)
- 1945 CEBlack Armada
- 1995 CECuers massacre
- 2006 CE2006 Brussels riots
- 2021 CECollierville Kroger shooting
- 1981 CESri Lanka-Switzerland Bilateral Investment Treaty
- 1992 CEHungary-Poland Bilateral Investment Treaty
- 1992 CEBulgaria-United States Bilateral Investment Treaty
- 1992 CEArmenia-United States Bilateral Investment Treaty
- 1997 CEEgypt-Russia Bilateral Investment Treaty
- 1997 CECentral African Republic-Israel Bilateral Investment Treaty
Natural Disasters on September 23
Records from scientific disaster catalogs that fall on this calendar day. All disaster records
- 1947 CEEarthquake — Iran, Dustabad (Mw 6.9)· 500 deaths
- 2018 CEFlood: India (2018-09-23)· 28 deaths
- 1907 CEFlash Flooding: Spain (1907-09-23)· 21 deaths
- 1945 CEEarthquake — China, Hebei Province (Ms 6.3)· 17 deaths
- 2023 CEFlood: South Africa (2023-09-23)· 11 deaths
- 1993 CEFluvial (Riverine) Flooding: France (1993-09-23)· 9 deaths
- 1993 CEFluvial (Riverine) Flooding: Italy (1993-09-23)· 9 deaths
- 2016 CEEarthquake — Rwanda, Risuzi, Congo: Ukavu (Mb 4.8)· 8 deaths
- 1974 CEFlash Flooding: France (1974-09-23)· 8 deaths
- 2022 CEFlood: Venezuela (Bolivarian Republic of) (2022-09-23)· 7 deaths
- 2017 CEEarthquake — Mexico, Oaxaca (Mw 6.1)· 5 deaths
- 1995 CEFlood: Japan (1995-09-23)· 3 deaths
- 1993 CEFluvial (Riverine) Flooding: Switzerland (1993-09-23)· 2 deaths
- 2012 CEFluvial (Riverine) Flooding: United Kingdom (2012-09-23)· 2 deaths
- 1905 CEFlash Flooding: Italy (1905-09-23)· 2 deaths
- 2024 CEFlash Flooding: Italy (2024-09-23)· 2 deaths
- 1989 CEFlood: Philippines (1989-09-23)· 2 deaths
- 1950 CEAsamayama· 1 deaths
- 2003 CEFlash Flooding: Italy (2003-09-23)· 1 deaths
- 2003 CEFlood: Italy (2003-09-23)· 1 deaths
- 1998 CEFlood: Algeria (1998-09-23)· 1 deaths
- 2005 CEFlood: United States of America (2005-09-23)· 0 deaths
- 1985 CEFlood: Nigeria (1985-09-23)· 0 deaths
- 1956 CECoastal Flooding: Italy (1956-09-23)· 0 deaths
- 2019 CEFlash Flooding: Albania (2019-09-23)· 0 deaths