This (almost) daily post intends to follow up the activity changes of volcanoes all over the world.
This post is written by geologist Richard Wilson who specializes in Volcano seismicity and Armand Vervaeck. Please feel free to tell us about new or changed activity if we haven’t written about it. -
July 21 – 22, 2012 volcano activity
We have not yet received Richard Wilson daily report so far. Richard is often in the field and has only now and then a good Internet reception. This article will be updated if it reaches us.
Bocca Nuoca at Etna volcano (Sicily, Italy) continues to give an incandescent show after dark. Take a look at the Lave webcam at night to see the volcano’s activity.
Activity observed by satellites
VAAC only reports Sakurajima volcano as having had new eruptive activity.
Satellite images are showing faint SO2 clouds in the greater Hunter an Matthew Islands area (see below). These volcanic islands are belonging to Vanuatu. We unfortunately have no proof of this activity as nobody has confirmed it so far and as no satellite imagery is present in the open internet (please provide us with details if you know the existence of such images). The shallow (poorly constrained) M5.8 earthquake to the East of Vanuatu yesterday, was more to the north. Often powerful earthquakes are triggering sudden volcanic activity. We could not detect any activity on the SO2 satellite image from Aura/OMI.
Manam volcano (Papua New Guinea) shows an SO2 plume on the NOAA satellite image earlier today (July 22).
The strong activity of Kilauea volcano (Hawaii, USA) can well be seen on the satellite picture below.
Volcanoes’ role in reef formation studied
Volcanic eruption in the southwest Pacific could save the Great Barrier Reef — and might be responsible for its formation, an Australian researcher says. Queensland University of Technology geologist Scott Bryan and colleagues studied the westward flow, or rafting, of pumice — created when frothy molten rock cools rapidly and forms a lightweight bubble-rich rock that can float in water — after volcanic eruptions in Tonga in 2001 and 2006. Read more …
Both Time lapse video’s below have been recorded by Earthquake-report.com and are showing Popocatepetl activity and night and during daylight. The patterns are of course similar.