What type of volcano is Kanaga?
Stratovolcano
From Miller and others (1998): “Kanaga Volcano occupies the northern corner of Kanaga Island, one of the most southerly members of the Aleutian chain….Kanaga Volcano description and information.
| Official Name: | Kanaga Volcano |
|---|---|
| Type: | Stratovolcano within caldera |
| Most Recent Activity: | February 18, 2012 |
When did Kanaga last erupt?
February 2012
The summit of Kanaga has a crater with fumarolic activity. It is located about 25 km (16 mi) west of the U.S. Navy installation and port on Adak Island….
| Mount Kanaga | |
|---|---|
| Mountain type | Stratovolcano |
| Volcanic arc/belt | Aleutian Arc |
| Last eruption | February 2012 |
Is the Kanaga Volcano Active?
Kanaga volcano is an active symmetrical stratovolcano rising 1300 m on the northern part of Kanaga Island in the western Aleutians, Alaska. It is one of the most southerly volcanoes of the central Aleutian chain.
What is observation of Kanaga Volcano in Alaska?
It is a symmetric composite cone 1307 m high and 4.8 km in diameter at sea level, built of interbedded basaltic and andesitic lava flows, scoria layers, and pyroclastic rocks….Kanaga Volcano description and information.
| Official Name: | Kanaga Volcano |
|---|---|
| Quadrangle: | Adak |
| CAVW Number: | 311110 |
| Pronunciation: | Sound file |
What causes stratovolcano?
Like other types of volcanoes, stratovolcanoes form around vents from which molten rock, or magma, reaches the Earth’s surface as lava. They’re most common along the planet’s great subduction zones, where a tectonic plate plunges beneath another, generating the rock melt necessary to produce volcanic activity.
What does the name Kanga mean?
Raven
The name Kanga is primarily a gender-neutral name of Native American origin that means A Raven.
What is a fumaroles of a volcano?
A fumarole (or fumarole; smoke hole) is an opening in the crust of the Earth and is often found in areas surrounding volcanoes, which emits steam (forms when superheated water vaporizes as its pressure drops when it emerges from the ground) and gases such as carbon dioxide, sulfur dioxide, and hydrogen sulfide.
What type of volcano is the Kanaga Volcano?
Kanaga volcano is an active symmetrical stratovolcano rising 1300 m on the northern part of Kanaga Island in the western Aleutians, Alaska.
Was there an eruption of Kanaga in 1994?
In our last report on Kanaga, issued in 1995 ( BGVN 20:08), we discussed an eruption during January through mid-October 1994. In addition to a brief explosion in February 2012, more information from the Alaska Volcano Observatory (AVO) has come to our attention, some discussing events more than a decade ago.
How did the Kanaga caldera form?
“Coats (1950 [4], 1956 [2]) suggested the caldera formed through collapse of a Tertiary volcano (Mount Kanaton) near the end of Pleistocene time. However, Miller and Kirianov (1994) [5] suggested periods of caldera formation on Kanaga occurred ~6000, ~4,500, and ~3,000 yBP based on tephrachronology studies on nearby Adak Island.
Did avavo detect a volcanic eruption at Kanaga?
AVO detected volcanic tremor at Kanaga from 1523 to 1527 UTC on 18 February 2012. This was followed by numerous small earthquakes at Kanaga continuing for about an hour.