Pas d'article dans la liste.
Stratovolcano 1160 m / 3,806 ft
Style éruptif tipique
United States, Aleutian Islands, 52.02°N / 178.14°E
Condition actuelle: normal / en sommeil (1 sur 5)
Eruptions du volcan Segula
: unknown, no recent eruptions
No recent earthquakes
|Heure||Mag. / Profondeur||Distance||Location|
The 6 x 7 km island of Segula east of Kiska volcano consists of a conical stratovolcano cut by a prominent NNW-SSE-trending fissure that extends to sea level at both ends of the island. The northern end of the fissure is flooded by the sea to produce a long, narrow cove. Segula was constructed above a 100-m-deep submarine platform that extends eastward to Khvostof and Davidof islands. A submarine debris-avalanche deposit extends up to 18 km offshore to the north. The summit of Segula contains a small, poorly defined caldera that is partly overtopped on the south by a cinder cone that forms the 1153 m high point of the island and on the north by extensive lava flows that reach the NE coast along a broad front. Another lava field on the SE coast originated from a cinder cone at 300 m altitude on the SE flank. No historical eruptions are known from Segula, but Nelson (1959) considered fresh lava flows on the north flank to possibly be only a few hundred years old.
Smithsonian / GVP volcano information
See also: Sentinel hub
| Landsat 8
Plus sur VolcanoDiscovery
Top 20 quakes in 2016
: Several magnitude 7 quakes occurred in 2016 (but none above M8): Papua New Guinea, NZ, Ecuador, Solomon Islands, Sumatra, Chile, Alaska and others - nearly all major earthquakes were located near active subduction zones.
See the top 20 list of largest quakes in 2016 with this map.
Photos de volcans en activité en tout le monde, prises perdant nos expéditions.
Become a supporter
: To continue to run this website full of free information about earthquakes and volcanoes to you, we also need to pay our developer, servers and in addition, we spend lots of our free time on it. If you enjoy it, we will greatly appreciate your support. If you like, you can send us a small donation.