Tungurahua Volcano, Ecuador: possible lava flow
Sunday Aug 19, 2012 11:59 AM | BY: T
Thermal images taken of the lava flow and mobilized incandescent blocks tumbling down from a notch in the crater wall on the northwestern flank of the volcano Tungurahua. (S. Vallejo / IGEPN)
The lava flow which some observers also reported seeing by naked eye is emerges from a breach in the sidewall of the crater on the upper NW flank and directed towards the Cusu gorge.
Apparently the lava flow stopped after nearly 4 hours of motion, but bad weather conditions make detailed observations difficult.
Preceding the effusion of the new flow, there had been a strong increase of activity since 16 August including seismic tremor, steam and ash emissions and loud explosions audible in nearby towns such as Ambato.
Links / Sources:
Friday, Aug 17, 2012
The new earthquake swarm that started on 15 August at El Hierro islan continues in the same area at aroud 10 km depth beneath the western El Golfo coast, but seems to be decreasing. Yesterday, 58 quakes occurred, today so far 18 although this number is likely to rise. Tremor is low to none. ... [more]
Thursday, Aug 16, 2012
There has not been much change in volcano activity worldwide, and as we're on tour, our reports will be less frequent until next week. ... [more]
Wednesday, Aug 15, 2012
Tuesday, Aug 14, 2012
This is what a (small) 2.7 earthquake in 25 km distance at 20 km depth looks like on the seismogramms of Santorini and gives an idea about how sensitive they are. [more]
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