Editing Santorini (section)

==== Post-Minoan volcanism ====
Post-Minoan eruptive activity is concentrated on the Kameni islands, in the centre of the lagoon. They have been formed since the Minoan eruption, and the first of them broke the surface of the sea in 197&nbsp;BC.<ref name="druitt" /> Nine subaerial eruptions are recorded in the historical record since that time, with the most recent ending in 1950.

In 1707, an undersea volcano breached the sea surface, forming the current centre of activity at Nea Kameni in the centre of the lagoon, and eruptions centred on it continue – the twentieth century saw three such, the last in 1950. Santorini was also struck by a devastating earthquake in 1956. Although the volcano is dormant at the present time, at the current active crater (there are several former craters on Nea Kameni), steam and [[carbon dioxide]] are emitted.

Small tremors and reports of strange gaseous odours over the course of 2011 and 2012 prompted satellite radar technological analyses and these revealed the source of the symptoms; the magma chamber under the volcano was swollen by a rush of molten rock by 10 to 20 million cubic metres between January 2011 and April 2012, which also caused parts of the island's surface to rise out of the water by a reported 8 to 14 centimetres.<ref name="NG">{{cite web |title=Santorini Bulges as Magma Balloons Underneath |author=Brian Handwerk |publisher=[[National Geographic Society]] |url=http://news.nationalgeographic.com/news/2012/09/120912-magma-balloon-lava-santorini-volcano-science/ |date=12 September 2012 |access-date=19 September 2012 |archive-date=20 September 2012 |archive-url=https://web.archive.org/web/20120920041614/http://news.nationalgeographic.com/news/2012/09/120912-magma-balloon-lava-santorini-volcano-science |url-status=dead}}</ref> Scientists say that the injection of molten rock was equivalent to 20 years' worth of regular activity.<ref name="NG" />{{clear left}}

At the beginning of February 2025, there were [[2025 Santorini earthquakes|hundreds of minor earthquakes]] up to [[Seismic magnitude scales|magnitude]] 5 near Santorini, mostly in an area around the tiny islet of [[Anydros]], north-east of Santorini. About 9,000 people left the island out of a population of 15,500 in the face of seismic activity that could last weeks. The tremors were attributed to [[tectonic plate]] movements rather than volcanic activity.<ref>{{cite news| last2=Papanikolaou | first1=Ian|last1=Aikman|first2=Nikos | last3=Stallard | first3=Esme | title=Thousands evacuate Santorini after earthquakes shake Greek island | publisher=BBC News | date=4 February 2025 | url=https://www.bbc.co.uk/news/articles/cjde94dnj08o}}</ref>