News from Ubinas volcano:
Ubinas volcano (Peru): increased internal activity, eruption warning
Thursday Sep 15, 2016 22:10 PM | BY: T
Increased degassing from Ubinas volcano on 13 Sep 2016 (image: Melquiades Alvarez / IGP)The volcano has been showing increased signs of unrest that could herald a new phase of activity in the new future.
Peru's Geophysical Institute (IGP) reported very significant changes in the volcano's seismic activity recently. After a gradual decrease of activity during the first half of the year until May, seismicity started again to pick up since June, indicating a new phase of internal pressure build-up. This trend has become more pronounced since 9 September when volcano-tectonic quakes, caused by internal rock fracturing (possibly due to intruding magma), appeared in greater numbers and with greater energy. Their location was at shallow depths of 3.6 km beneath the summit.
These changes are likely a sign of new magma rising within the volcano, which could (but not must) lead to a new phase of eruptions. This scenario becomes more likely after since 13 Sep more sustained gas emissions were observed at the volcano - gasses as the most mobile component of new magma reach the surface first.
Heightened vigilance is in place for the volcano.
Saturday, Jan 16, 2016
A moderately large vulcanian-type explosion occurred at the volcano yesterday 12:53 local time. An ash plume rose 3 km above the crater and drifted SE. Light ash fall occurred in up to 10 km distance, including the villages of Sacohaya, Querapi and Ubinas. ... [more]
Friday, Nov 13, 2015
Another small explosion occurred this afternoon at the volcano, similar to the event a week ago. An ash plume rose approx. 500 m above the crater and quickly dissipated. [more]
Friday, Nov 06, 2015
A small explosive eruption occurred last evening, producing an ash plume that rose approx. 1 km above the crater and quickly dissipated. Seismic activity at the volcano remains low, according to the corresponding bulletin of Buenos Aires VAAC. [more]
Friday, Nov 06, 2015
Activity at the volcano remains low, with weak emissions of gas and steam, sometimes mixed with ash. ... [more]
Saturday, Oct 03, 2015
A small explosion occurred at 16:35 local time on 1 October. It generated a small ash plume that rose a few hundred meters and quickly dissipated. [more]