Nisyros volcan

Mise à jour: 7 août. 2022 15:46 GMT - Refresh
Stratovolcano, volcanic domes 680 m
Dodecanese Islands, Greece, 36.58°N / 27.17°E
Condition actuelle: normal / en sommeil (1 sur 5)
Last update: 12 déc. 2021
Stephanos crater of Nisyros volcano
Stephanos crater of Nisyros volcano

The small round island of Nisyros is one of the more active but less known volcanoes in Greece. It is located south of the popular beach holiday island of Kos.
The volcano is part of the Hellenic Arc, a curved line of volcanic centers which are caused by a subduction zone, and stretches from the Saronic Gulf opposite Athens via the island groups of Milos, Santorini, and Nisyros-Yali-Cos to the Bodrum peninsula at the extreme SW of Turkey.
The last eruption of Nisyros were phreatic explosions in 1881-87. They left a moonscape with colorful craters and very active fumaroles. More information about Nisyros island

Montrer carte interactive
Style éruptif tipique: Hydrothermal explosions, effusive volcano, volcano domes
Eruptions du volcan Nisyros: 1881-1887 - hydrothermic explosions of the crater "Micros Polyvotis"
1500 - hydrothermic explosions
1000-2000 B.C. - hydrothermic explosions of the crater "Stefanos"
5000-10.000 B.C. - hydrothermic eruptions of the Kaminakia craters
15.000-10.000 B.C. - building of postcalderic volcano domes
15.000 B.C. - effusive eruption of the central caldera of Nisyros ("Upper pumice")
25.000 B.C. - effusive eruption of the central caldera of Nisyros ("Lower pumice")
40.000-30.000 B.C. - effusive eruption ("Kira-Formation")
150.000 B.C. - first submarin eruptions
Derniers séismes proches:
HeureMag. / ProfondeurDistance/Lieu
dimanche, 7 août 2022 GMT (4 séismes)
7 août 2022 15:51 (GMT +3) (7 août. 2022 12:51 GMT)
2.6

12 km
19 km (12 mi)
Mer Égée, 56 km au sud de Kos Stadt, Dodecanese, South Aegean, Grèce
7 août 2022 11:30 (GMT +3) (7 août. 2022 08:30 GMT)
2.1

5.5 km
25 km (16 mi)
Mer Égée, 62 km au sud de Kos Stadt, Dodecanese, South Aegean, Grèce
7 août 2022 10:49 (GMT +3) (7 août. 2022 07:49 GMT)
3.0

8.9 km
21 km (13 mi)
Mer Égée, 57 km au sud de Kos Stadt, Dodecanese, South Aegean, Grèce
7 août 2022 08:01 (GMT +3) (7 août. 2022 05:01 GMT)
2.5

13 km
20 km (12 mi)
Mer Égée, 56 km au sud de Kos Stadt, Dodecanese, South Aegean, Grèce
samedi, 6 août 2022 GMT (1 séisme)
6 août 2022 23:45 (GMT +3) (6 août. 2022 20:45 GMT)
2.7

15 km
17 km (10.6 mi)
Mer Égée, 53 km au sud de Kos Stadt, Dodecanese, South Aegean, Grèce

Introduction

Nisyros is together with the volcanoes of the Cos caldera the east edge of the Aegean Arch with its active volcanoes Methana, Milos, Santorini. The Nisyros volcano is the most active remain of the Cos caldera that exploded aprox. 150.000 years ago. Nisyros, Yali, Strongyli, Pyrgoussa, Pahia and Kefalos (at Cos) are the remains of a zone that is considered to be still active. A Magma chamber below Nisyros is only 3-4 km deep and still rising up. Since 2000 when the Nisyros research program of the GEOWARN-Team started, the temperatures of the fumaroles have been changing from 98 C to 103 C in 2004. There was also a high tectonic (earthquakes) activity in the last years and so a program to prevent volcanic hazards is still ongoing.

Nisyros Photos

Hot drops of sulfuric acid at a fumarole of Stefanos crater on Nisyros volcano, Greece (Photo: Tobias Schorr)
Hot drops of sulfuric acid at a fumarole of Stefanos crater on Nisyros volcano, Greece (Photo: Tobias Schorr)
Ancient, corinthian columns on the acropolis Paliocastro at Mandraki/Nisyros (Photo: Tobias Schorr)
Ancient, corinthian columns on the acropolis Paliocastro at Mandraki/Nisyros (Photo: Tobias Schorr)
Black cat from Nisyros (c)
Black cat from Nisyros (c)
Ancient castle Paliocastro above the village Mandraki on Nisyros island. (Photo: Tobias Schorr)
Ancient castle Paliocastro above the village Mandraki on Nisyros island. (Photo: Tobias Schorr)
 



Voyages au volcan Nisyros :
Amandes, Olives et Volcans (7-jours voyage randonnées & étude sur l'île volcanique de Nisyros, Grèce)

See also: Sentinel hub | Landsat 8 | NASA FIRMS
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