Climate & Environment in the 8th century

24 sourced entries, 700 CE to 789 CE, oldest first. Also see Climate & Environment across every century or everything else in the 8th century.

• 700The Moche culture in the northern part of modern day Peru collapses, largely due to environmental problems and/or political and social unrest (approximate date).source
• 700The Mount Edziza volcanic complex erupts in northern British Columbia, Canada.source
• 701Muslims from the Arabian Peninsula destroy the then-Axum-controlled port of Adulis, thus causing the decline of Ethiopian Christianity on the African Red Sea coast (approximate date).source
• 704Winter – Abdallah ibn Abd al-Malik is recalled from Armenia to serve as governor of Egypt. He requires that government business be done in Arabic instead of Coptic. His tenure is marred by famine and corruption.source
• 709A storm separates the Channel Islands of Jethou and Herm.source
• 717December 24 – A destructive earthquake, with six months of aftershocks, affects Syria and Mesopotamia.source
• 726Seismic activity in the Mediterranean Sea: The volcanic island of Thera erupts, while the city of Jerash (in present-day Jordan) suffers a major earthquake.source
• 734March 23 – A large earthquake strikes the Tang dynasty city of Qinzhou (in the vicinity of modern-day Tianshui City), causing serious damage and killing around 4000 people.source
• 735735 Vayots Dzor Province earthquake. It affects the Vayots Dzor Province.The earthquake reportedly destroys an entire valley. The reported casualties include at least 10,000 victims.source
• 740October 26 – 740 Constantinople earthquake. An earthquake strikes Constantinople and the surrounding countryside, causing destruction to the city's land walls and buildings.source
• 743743 Caspian Gates earthquake. It took place in the Caspian Gates (Gates of Alexander). The location is identified with either Derbent, Russia or Talis, Iran.source
• 745Carantania (modern Austria) loses its independence and becomes part of the Frankish Kingdom, due to the pressing danger posed by Avar tribes from the east (approximate date).source
• 748An earthquake strikes the Middle East from northern Egypt to northwestern Mesopotamia, destroying many remnants of Byzantine culture (approximate date).source
• 749January 18 – Galilee earthquake: Palestine and eastern Transjordan are devastated by an earthquake. The cities of Tiberias, Beit She'an, Hippos and Pella are largely destroyed.source
• 757March 9 – A major earthquake strikes Palestine and Syria.source
• 759Exceptional winter in England: Frost begins October 1, and ends February 26, 760.source
• 761A great Chinese famine in the Huai-Yangtze area, late in the year, drives many people to cannibalism (approximate date).source
• 765The Annals of Tigernach tell of a shortage of bread in Ireland.source
• 774A 1.2% growth of concentration recorded in tree rings, along with corresponding spikes of and recorded in ice cores, suggests that a very strong solar storm may have hit Earth in either 774 or 775.source
• 775A 1.2% growth of carbon-14 concentration recorded in tree rings suggests that a very strong solar storm may have hit Earth, in either 774 or 775. Known as the 774–775 carbon-14 spike, corresponds to the first Miyake event.source
• 779March, days unknown - An earthquake in Silla with a magnitude of 6.7–7.0 on the Richter scale kills more than 100 people.source
• 781July 31 – The oldest recorded eruption of Mount Fuji occurs (Traditional Japanese date: July 6, 781).source
• 788The earliest recorded tornado in Europe struck Freising in 788.source
• 789An uprising in Japan leads to a major defeat for Emperor Kanmu, along with a severe drought and famine; the streets of the capital Nagaoka-kyō are clogged with the sick.source