Events That Happened on August 31
- 1302 CEPeace of Caltabellotta
- 1786 CEShays's Rebellion
- 1707 CETreaty of Altranstädt
- 1839 CEConvention of Vergara
- 1907 CEBritish-Russian Convention
- 1957 CEMalayan Declaration of Independence
- 1990 CEUnification Treaty
- 2004 CEAugust 2004 Moscow Metro bombing
- 2005 CEHoyvík Agreement
- 1522 CELuso Sundanese padrão
- 1920 CEKuusinen Club Incident
- 2004 CEBeersheba bus bombings
- 2018 CE2018 Amsterdam stabbing attack
- 2019 CE2019 West Texas shooting
- 1803 CETreaty of Hoe Buckintoopa
- 1996 CE1996 Erbil massacre
- 1136 CETreaty of Alagón
- 1961 CEGermany-Morocco Bilateral Investment Treaty
- 1963 CEUnion of Orange Cities
- 1994 CEPoland-Vietnam Bilateral Investment Treaty
- 2004 CEDemocratic Republic of the Congo-South Africa Bilateral Investment Treaty
Natural Disasters on August 31
Records from scientific disaster catalogs that fall on this calendar day. All disaster records
- 1968 CEEarthquake — Iran, Dasht-E-Bayaz (Mw 7.1)· 10,488 deaths
- 2025 CEEarthquake — Afghanistan, Kunar, Nangarhar (Mw 6)· 2,205 deaths
- 1896 CEEarthquake — Japan, Senhoku, Ugo· 206 deaths
- 2002 CEFlood: Republic of Korea,Democratic People's Republic of Korea (2002-08-31)· 138 deaths
- 1976 CESemeru· 119 deaths
- 1988 CEFlood: China (1988-08-31)· 58 deaths
- 2000 CEFlood: Democratic People's Republic of Korea (2000-08-31)· 42 deaths
- 2006 CEFlood: India,Pakistan (2006-08-31)· 39 deaths
- 1994 CEFlood: India (1994-08-31)· 20 deaths
- 1926 CEFlash Flooding: Spain (1926-08-31)· 16 deaths
- 1926 CEEarthquake and tsunami — Azores, Fayal Island (Mw 5.8)· 9 deaths
- 1951 CEKelud· 7 deaths
- 2007 CEFlood: China (2007-08-31)· 7 deaths
- 2013 CEEarthquake — China, Yunnan Province: Benzilan (Mw 5.6)· 5 deaths
- 1919 CEFlash Flooding: Italy (1919-08-31)· 4 deaths
- 1999 CEFlash Flooding: Spain (1999-08-31)· 4 deaths
- 1917 CEEarthquake — Colombia, Bogota, Ubaque, Soacha, Caqueza (Ms 7.3)· 3 deaths
- 1977 CEEarthquake — Colombia, Apartado, Medellin (Ms 6.5)· 3 deaths
- 1967 CESemeru· 3 deaths
- 1939 CEFlash Flooding: Italy (1939-08-31)· 2 deaths
- 2012 CEEarthquake and tsunami — Philippines, Cagayan De Oro, Tacloban (Mw 7.6)· 1 deaths
- 1930 CEEarthquake — California, Southern (Ms 5.2)· 1 deaths
- 1999 CEEarthquake — Turkey, Izmit (Mw 5.2)· 1 deaths