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Erta Ale volcano, Ethiopia

Erta Ale volcano, Ethiopia, Volcano photo


Erta Ale volcano, Ethiopia

The summit of Erta Ale volcano contains a dramatic 0.7 x 1.6 km, elliptical caldera housing steep-sided pit craters.

Steam rises from the North pit at the left, and a lava lake was active in the center pit crater at the time of this February 2002 view from the south.

Erta Ale is an isolated basaltic shield volcano that is the most active volcano in Ethiopia.

Fresh-looking basaltic lava flows fill much of the caldera and have overflowed its rim on the southern side.

One, or sometimes two, long-term lava lakes have been active since at least 1967.

Erta Ale volcano, Ethiopia, Volcano photo
The steep-walled southern pit crater cuts the floor of the summit crater of Ethiopia's Erta Ale volcano.

This November 1992 photo shows an active lava lake on the floor of the 100-m-deep crater.

Fresh lava flows radiate away from the crater rim.

They were produced by lava overflows from the crater, particularly during 1971-73.

The southern pit crater has had an active lava lake since at least 1967, and possibly since 1906.

Few observations are made of this remote volcano, located in the extremely hot and arid Afar region.

Erta Ale volcano, Ethiopia, Volcano photo
Erta Ale is an isolated basaltic shield volcano that is the most active volcano in Ethiopia.

The broad, 50-km-wide volcano rises 500 m from below sea level in the barren Danakil depression.

It contains a 0.7 x 1.6 km, elliptical summit crater, seen here from the SE.

The crater houses steep-sided pit craters that contain one or more lava lakes that have been active since at least 1967.

Fresh black lava flows from the southern pit crater fill much of the floor of the larger crater and spill over its rim down the south flank.

Erta Ale volcano, Ethiopia, Volcano photo
This 1992 view looks south over the summit crater of Erta Ale volcano.

A pit crater at the center, whose floor is not visible in this photo, contains an active lava lake.

Overflows of lava from this crater during 1971-73 diverged around an older cone and covered much of the broad crater floor.

Erta Ale volcano, Ethiopia, Volcano photo
A permanent lava lake has been present at the isolated Erta Ale volcano in Ethiopia since at least 1967, and possibly since 1906.

This November 1992 photo shows a lava lake in a 100-m deep crater in the southern part of the large summit crater.

For many years two lava lakes were active simultaneously.

During 1971-73 continuous overflows from the southern lava lake filled the entire crater floor and sent lava flows down the southern flank.

The northern lava lake ceased activity sometime between satellite observations in February 1987 and June 1992.

PHOTO SOURCE: Photo by Jürg Alean, 2002 (Kantonsschule Zürcher Unterland, Bülach, Switzerland), Luigi Cantamessa, 1992 (courtesy of Pierre Vetsch), courtesy of the Global Volcanism Program, Smithsonian National Museum of Natural History, used with permission.


NOTE: The information regarding Volcano on this page is re-published from other sources. No claims are made regarding the accuracy of Volcano information contained here. All suggestions for corrections of any errors about Volcano photos should be addressed to the copyright owner noted below the photo.





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