Kos volcano

Caldera(s) 430 m / 1411 ft
Aegean Sea, Greece, 36.85°N / 27.25°E
Current status: (probably) extinct (0 out of 5)

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Typical eruption style: unspecified
Kos volcano eruptions: None during the past 10,000 years
Less than 2.58 million years ago (Pleistocene)

Latest nearby earthquakes

TimeMag. / DepthDistance/Location
Wed, Sep 8, 2021 (GMT) (1 earthquake)
Sep 8, 2021 4:40 am (GMT +3) (Sep 8, 2021 01:40:02 GMT)
4.5

14 km
39 km (24 mi)
Aegean Sea, 43 km south of Kos, Dodecanese, South Aegean, Greece
Tue, Sep 7, 2021 (GMT) (2 earthquakes)
Sep 8, 2021 2:24 am (GMT +3) (Sep 7, 2021 23:24:17 GMT)
3.5

8.8 km
43 km (27 mi)
Aegean Sea, 48 km south of Kos, Dodecanese, South Aegean, Greece
Sep 8, 2021 12:55 am (GMT +3) (Sep 7, 2021 21:55:22 GMT)
3.9

14 km
39 km (24 mi)
Aegean Sea, 44 km south of Kos, Dodecanese, South Aegean, Greece
Mon, Sep 6, 2021 (GMT) (1 earthquake)
Sep 6, 2021 6:04 pm (GMT +3) (Sep 6, 2021 15:04:39 GMT)
4.2

16 km
49 km (30 mi)
Aegean Sea, 55 km south of Kos, Dodecanese, South Aegean, Greece
Thu, Sep 2, 2021 (GMT) (1 earthquake)
Sep 3, 2021 12:12 am (GMT +3) (Sep 2, 2021 21:12:53 GMT)
4.2

16 km
50 km (31 mi)
Aegean Sea, 55 km south of Kos, Dodecanese, South Aegean, Greece

Background

The island of Kos is dominantly non-volcanic but contains Miocene to Pleistocene volcanic centers. The Kamari caldera is of mid-Pleistocene age and contains the 1.0-0.55 million-year-old, post-caldera Zini lava dome. The formation of a large caldera deposited the widespread Kos Plateau Tuff (erupted about 160,000 years ago), which blankets much of the western half of Kos and originated from a stratovolcano between Kos and Nisyros islands. The caldera dimensions are uncertain, but may extend as much as 20 km from Kefalos Bay in SW Kos Island to Nisyros Island. Remnants of the pre-eruption stratovolcano are preserved on the islets of Pachia and Pyrgousa and as submarine volcanic rocks on Nisyros. Kos was included in the Catalog of Active Volcanoes of the World (Georgalas, 1962) based on its geothermal activity. Several solfatara fields are present, including Vromotopos at Kefalos Isthmus on the western side of the island and a group of thermal areas at the eastern side of Kos. Thermal activity consists of weak hydrogen sulfide emission, sulfur deposits, and two hot springs along the southeastern coast.
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Smithsonian / GVP volcano information

Kos Photos

The island of Kos is in the far background, forming the rim of the large submerged caldera created by the huge Kos supervolcano explosion around 160,000 years BP. (c)
The island of Kos is in the far background, forming the rim of the large submerged caldera created by the huge Kos supervolcano explosion around 160,000 years BP. (c)
Natural bridge formed by sea erosion into the white ash and pumice deposit near Papafrakos. A good spot for a group picture... (Photo: Tom Pfeiffer)
Natural bridge formed by sea erosion into the white ash and pumice deposit near Papafrakos. A good spot for a group picture... (Photo: Tom Pfeiffer)
White cliff of the Sarakinikos coast (Milos Island, Greece) (Photo: Tom Pfeiffer)
White cliff of the Sarakinikos coast (Milos Island, Greece) (Photo: Tom Pfeiffer)
Mandraki at the beginning of the night. In the background, Kos island. (c)
Mandraki at the beginning of the night. In the background, Kos island. (c)
 



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