1995: Photos and video by Pierre Vetsch

1995: Photos and video by Pierre Vetsch
Overview from the summit on the active North crater. On the left: scarp of the Eastern Rift Valley; in the background the sodic lake Natron (18.12.95).
1995: Photos and video by Pierre Vetsch
General view from inside the crater with activity of the cinder cone just before flank collapse (see also photo below; 17.12.95).
1995: Photos and video by Pierre Vetsch
Filming of very thin (few centimeters) carbonatitic lava flows issued from one of the hornitos (17.12.95).
1995: Photos and video by Pierre Vetsch
Active carbonatitic lava channel, flow from top to bottom of picture, where the channel is almost closed forming a «micro» lava tube (17.12.95).
1995: Photos and video by Pierre Vetsch
Spattering from a small hornito, about 2 meters tall (17.12.95).
1995: Photos and video by Pierre Vetsch
Strombolian activity inside the large cinder cone just after flank collapse (height about 12-15 meters).
1995: Photos and video by Pierre Vetsch
Spectacular bubbling from a carbonatitic hornito (17.12.95).
1995: Photos and video by Pierre Vetsch
Very rapid, dangerous lava flow (approx. 1 m thick), transporting large blocks. Sequence approx. 5 mins, taken from E rim.
Video clips

  • Overflowing from a carbonatitic lava channel with bubbling probably caused by a reaction with a hydrated substratum (18.12.95). QuickTime movie 8fps, 5secs, sound, 540K
  • Spattering from a small hornito (17.12.95). QuickTime movie 8fps, 12secs, sound, 1.3M
  • Bubbling from a small carbonatitic lava pond (diameter approx. 1 m; 17.12.95). QuickTime movie 8fps, 6secs, sound, 620K


Copyright: P.Vetsch.
«Volcanic activity of Ol Doinyo Lengai in December 1995» is available as a videotape (VHS PAL or VHS NTSC) by contacting:

Pierre Vetsch, pvetsch@iprolink.ch
Societé de Volcanologie Genève, svg@worldcom.ch
B.P.298, CH-1225 CHENE-BOURG,
Switzerland