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Nisyros vulcano

Aggiornato: 29 nov. 2023 09:36 GMT -
Stratovolcano, volcanic domes 680 m
Dodecanese Islands, Greece, 36.58°N / 27.17°E
Stato attuale: normal or dormant (1 di 5)
Last update: 12 dic 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

Mostra la mappa interattiva
Stile eruttivo tipico: Hydrothermal explosions, effusive volcano, volcano domes
Eruzioni del vulcano 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

Latest nearby earthquakes

Data / oraMag. / Prof.Distanza/Ubicazione
martedì, 21 novembre 2023 GMT (1 sismo)
21 nov 18:48 (Athens)
(21 nov 16:48 GMT)

7.5 km
37 km (23 mi)
Greece: Ege Denizi - [26.35 Km] Datça (Muğla)
domenica, 19 novembre 2023 GMT (1 sismo)
19 nov 03:00 (Athens)
(19 nov 01:00 GMT)

7.2 km
20 km (12 mi)
17 km a sud da Kos, Dodecanese, Egeo Meridionale, Grecia


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

See also: Sentinel hub | Landsat 8 | NASA FIRMS

Nisyros Tour di vulcano

Nisyros Island, Greece
Almonds, olives and volcanoes
9-days walking & study tour on the volcanic islands of Nisyros & Cos, Greece
8 giorni - Moderata
Price 1690 €
11-18 mag 2024

3D-Image of the area of Cos & Nisyros

Threedimensional image of the caldera of Cos with its volcanoes Yali & Nisyros
Threedimensional image of the caldera of Cos with its volcanoes Yali & Nisyros
Thu, 13 Dec 2012, 11:05

Nisyros volcano (Dodecanese Islands, Greece) activity update

Location of recent quakes near Nisyros Island, Greece
Terremoti sono stati più frequenti di recente a Nisyros vulcano. 2 ulteriori terremoti di magnitudo 2.1 e 3.1 sono verificati oggi vicino l'isola ad una profondità di circa 10 e 20 km, rispettivamente. ... Read all
Tue, 4 Dec 2012, 10:33

Earthquake swarms could indicate eruption near Nisyros, Greece

Uno sciame sismico del 2000 microearthquakes vicino l'isola di Nisyros, dal 24 novembre potrebbe indicare un inizio di una o di un'eruzione vulcanica nelle vicinanze di Nisyros. ... Read all
The hydrothermal explosion crater Stefanos in the caldera of Nisyros island. (c) Tom Pfeiffer
The hydrothermal explosion crater Stefanos in the caldera of Nisyros island. (c) Tom Pfeiffer
The Polyvotis lava dome. (c) Tom Pfeiffer
The Polyvotis lava dome. (c) Tom Pfeiffer
A hot fumarole at Stefanos crater. (c) Tom Pfeiffer
A hot fumarole at Stefanos crater. (c) Tom Pfeiffer
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