Philippine Institute of Volcanology and Seismology (PHIVOLCS) stated in the latest advisory report that Mayon volcano (13.2500°N, 123.6833°E) produced a small phreatic eruption early on May 7, 2013, which lasted 2 minutes 26 seconds. The agency stated that in
The current eruption of Cleveland Volcano, which began with an explosion on May 4, 2013, has transitioned into a continuous low-level eruption. The activity is characterized by long duration airwave signals measured on the nearby Okmok seismic network, 120 km (80
Alaska Volcano Observatory (AVO) infrasound detected 2-3 possible explosion at Cleveland Volcano early on May 4, 2013. The infrasound signals suggest that this was a relatively short duration, low-level explosion. A small, low-altitude ash cloud along with high
This week, two volcanoes had new activity, whereas ongoing activity was reported for 19 volcanoes. This report covers active volcanoes in the world recorded from April 24 – April 30, 2013 based on Smithsonian/USGS criteria.
New
The National Secretariat for Risk Management said yellow alert remains in surrounding communities of Tungurahua volcano in Ecuador.
On April 27, 2013 two small earthquakes associated with fracturing of rocks within the volcano (volcano-tectonic earthquakes) were
Strong strombolian activity and frequent ash emissions that continued throughout the whole night on April 27, 2013, were a prelude to the 13th paroxysm (lava fountaining) of this year at Etna’s New Southeast Crater. The strombolian activity had begun already on
This week, one volcano had new activity, whereas ongoing activity was reported for 10 volcanoes. This report covers active volcanoes in the world recorded from April 17 – April 23, 2013 based on Smithsonian/USGS criteria.New activity/unrest: | Soputan,
A new study of the Yellowstone National Park geyser shows that the underground plumbing of the Old Faithful looks like a bagpipe. Scientists report, in study published online March 30, 2013 in the journal Geophysical Research Letters, that a big chamber is
Only two days passed since the last eruption, and new, 12th paroxysm of the New SE crater happened during April 20, 2013. According to INGV Sezione di Catania, explosive activity had resumed on April 19, 2013, less than 24 hours after the end of the previous
The new, 11th paroxysm from the Etna's New SE crater occurred on April 18, 2013 with lava fountains, a lava flow directed into the Valle del Bove, and a column of ash and lapilli that expanded south-southwestward. The phase of lava fountaining was
