Intense day of activity for Martyn in Canberra
Timeless attitudes

Magnificent satellite imagery of Bagana volcano


Bagana volcano from the ground []MOUNT BAGANA IS AN ACTIVE VOLCANO located in central Bougainville and is the most active volcano in PNG.

Just northeast of Bagana, one of 17 volcanoes on Bougainville, is the volcano crater lake, Billy Mitchell.

Bagana is a massive symmetrical lava cone about 1,750-metres high, largely constructed by an accumulation of lava flows. The entire cone could have been constructed in about 300 years at its present rate of lava production.

Bagana is poorly monitored. Located on the mountainous spine of Bougainville, it is far from any large towns and hard to reach due to the rough terrain.

Bagana emits volcanic gases (including water vapour and sulphur dioxide) almost continuously, and frequently extrudes thick lava flows. Satellites provide the most reliable way to watch this activity.

This natural-colour image, collected by the Earth Observing-1 satellite on 16 May, reveals a fresh lava flow on Bagana’s eastern flank.

Imagery from Landsat 7 shows that the flow was established some time between March 2011 and February 2012. The fresh lava is dark brown, while lighter brown areas were likely stripped of vegetation by volcanic debris or acidic gases.

Older lava flows are covered in light green vegetation, and the surrounding forests are dark green. The volcanic plume and clouds are both white.

Bagana volcano from space


Feed You can follow this conversation by subscribing to the comment feed for this post.

Verify your Comment

Previewing your Comment

This is only a preview. Your comment has not yet been posted.

Your comment could not be posted. Error type:
Your comment has been saved. Comments are moderated and will not appear until approved by the author. Post another comment

The letters and numbers you entered did not match the image. Please try again.

As a final step before posting your comment, enter the letters and numbers you see in the image below. This prevents automated programs from posting comments.

Having trouble reading this image? View an alternate.


Post a comment

Comments are moderated, and will not appear until the author has approved them.

Your Information

(Name and email address are required. Email address will not be displayed with the comment.)