Nabro volcano (Eritrea): eruption has decreased. Has it stopped?
Friday Jun 17, 2011 17:13 PM |
The eruption at Nabro volcano in Eritrea that started 5 days ago seems to have decreased a lot in intensity, or even have stopped.
Nabro SO2 plume 14-17 June (OMI data, KNMI.FMI/NASA). Original images from ESA SACS, composite from The Volcanism Blog (volcanism.wordpress.com)
Emissions early yesterday on 16 June were still strong after recovering from a decrease on 14 June and the ash/aerosol (mainly SO2) plumes reached 20,-40,000 ft (6-12 km) and drifted N and NE to cause renewed flight cancellations in neighboring countries.
Today, VAAC Toulouse reported at 06:00 UTC that the "eruption stopped" at 15:00 UTC on 16 June - no more ash can be detected above the volcano from satellite. MODIS hotspots data from 12-16 June indicate that the explosive eruption was accompanied by a large lava flow from vents inside the caldera and reaching around 16 km distance to the west of the caldera. It is uncertain whether lava emissions are still ongoing, but this is a realistic possibility.
An magnitude 5.6 earthquake at 10 km depth hit near Nabro volcano today, but it is speculation to relate it to a possible re-intensifying or restart of the eruption.
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Monday, Jun 13, 2011
The eruption plume from the ongoing eruption at Nabro volcano is driffting at an altitude of ca. 7km (20,000 ft, flight level 200) and has reached southern Egypt. It is well visible on satellite images. [more]
Following a swarm of intense earthquakes, a new and apparently large explosive eruption started last night in Eritrea near the Ethiopian border, in an area which is the continuation of the spreading rift axis of the Red Sea. ... [more]