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Volcanic Activity TimeTable after Minoan Eruption |
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Source: www.decadevolcano.net
| Dating |
Event |
Sources |
| 197 BC |
Formation of an island called Hiera (gr., = "the holy one") inside the caldera, probably a precursor of Palea Kameni
Probably surtseyan activity with updoming of the sea-floor |
Strabo, Plutarch, Pausanias, Justinus, Eusebius from Cesarea, Ammianus Marcellinus |
| 46 AD |
Appearance of a new island that probably grew together with Hiera and formed the basis of Palea Kameni
Probably surtseyan activity with updoming of the sea-floor. |
Seneca, Livy, Pliny the Elder, Dio Cassius, Aurelius Victor, Philostratos, Orosius, Cassiodorus, Labbreus |
| 726 AD |
Probably small effusive activity following the pumice eruption creating the black blocky lava lobe at Agios Nikolaos (the small harbor baywith the church and hot iron springs).
Strong explosive probably sub-plinian eruption |
Nicephoros
Theophanes
Cedremus |
| 1457-1458 |
either a part of Palea Kamenicollapsed and disappeared or a new island between Palea Kameni and Thera was built. |
Athanasius Kircher
Buondelmonte |
| 1570-1573 |
Formation of Mikri Kameni (gr., = "small burnt island"). Surtseyan activity, ash-fall and block fall-out |
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| 27 Sept 1650 |
Kolumbo submarine volcano (ca. 8 km NE of Cape Kolumbo, Santorini): strong surtseyan-subplinian eruption with ash and pumice fall, toxic gasses (>50 fatalities). Generation of a strong tsunami. |
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| 23 May 1707 - Sept. 1711 |
Formation of Nea Kameni (gr., = "the new burnt island"). Strong surtseyan and effusive activity . Ash-fall and gas explosions. Lowering of the coastline of Thera and Mikri Kameni.
Rising of a white island ca. 200 m west of Mikri Kameni. Updoming of the sea-floor. White pumice and black lava blocks covered with living sea animals.
Rising of the white island without visible volcanic action up to 70-80 m height and ca. 500-600 width
Rising and growing of a black island north of the white island. "Fire" visible (lava fountains?).
The white and the black island unite |
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| 4 Feb. 1866 - 15 Oct. 1870 |
Moderate effusive and minor explosive activity. Mikri and Nea Kameni unite. Lava flows, lava fountains and ash-falls.
- 26 Jan. 1866 -- Falling down of blocks between Mikri and Nea Kameni, fractures in the walls of houses.
- Following days -- Rising temperature of seawater (boiling) and increased fumarolic activity.
- Beginning Feb. 1866 -- Smoke and rising of dark cooled lava blocks to the surface of Vulkano bay. The rising cone was called "Georgios".
- 6 Feb. 1866 -- Cooled lava blocks reach Nea Kameni and cover the houses.
- 20 Feb. 1866 -- Strong explosion of Georgios. Ash-fall. Repeated in short intervals during the following months. Max. height of pyroclastic columns during paroxysmal explosions 2,2 km.
- New eruptive center, called "Aphroessa", becomes active south of Nea Kameni.
- March 1866 -- Products of Aphroessa reach Nea Kameni.
- 10 May 1866 -- New eruptive center. Formation of a small island ("Maionisi", gr., = May-islands) that dissappears shortly after. |
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| 11 Aug. 1925- 17 March 1928 |
  
Moderate effusive and explosive activity. Growth of Nea Kameni. Lava flows, lava fountains and ash-falls.
- Aug. 1925 -- Rising temperature in the Red bay ("Kokkina Nera", gr. = red waters) at the eastern shore of Nea Kameni and subsidence of Nea Kameni's east shore. Vapor fountains and lava outflow.
- 11 Aug. 1925 - Jan. 1926 -- Building of a small cone ("Daphne"). Effusive and explosive activity from this cone culminating in paroxysmal pyroclastic columns up to 3,2 km high.
- Jan. 1926 - May 1926 -- Pause of activity.
- May 1926 -- Phreatomagmatic explosions producing minor pyroclastic flows .
- May 1926 - Jan. 1928 -- Pause of activity.
- Jan. 1928 -- 4 phreatic explosions and mixed effusive-explosive activity forming a new lava dome called "Nautilus". |
 
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| 20 Aug. 1939 - July 1941 |
Formation of several lava domes ("Tritona", "Ktenas", "Fouqué", "Smith-Reck" and "Niki"). Extrusive and slighly explosive activity. Lava outflow in most cases preceeded by phreatic explosions.
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| 10 Jan. 1950 - 2 Feb. 1950 |
Small effusive activity ("Liatsikas" lavas) preceeded by phreatic explosions.
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Source: www.decadevolcano.net |
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Photo of the Week
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Double Rooms Today |
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