Volcanic Activity Worldwide: Monday June 27, 2016

Eruption of Santiaguito yesterday (photo: Geól. Sergio Almazán ‏@chematierra / INSIVUMEH / Twitter)

Santiaguito (Guatemala): The elevated activity from the Caliente lava dome continues to produce intermittent strong vulcanian eruptions every few days or so: yesterday afternoon at 16:16 local time, a powerful explosion produced an ash column that rose to 5 km altitude and generated pyroclastic flows on the SW and SE side of the lava dome.
The ash plume drifted west and northwest, causing again mild to moderate ash fall in nearby communities in up to 20-30 km distance.
The explosion itself seems not o have caused any particular damage, but INSIVUMEH warns that the currently strong rainfalls can trigger dangerous lahars (mud flows) at any time.

Fuego (Guatemala): The 10th paroxysmal episode at the volcano in 2016 has come to an end and the volcano is now back to its normal state of intermittent mild to moderate strombolian explosions, ejecting incandescent material up to 100 m above the summit vents, at intervals of 1-2 hours on average.
The explosions (13 in total recorded by INSIVUMEH during the past 24 hours) produced ash plumes of 500-1000 meters height. The stronger ones were accompanied by weak shock waves and caused ash plumes that drifted up to approx. 10 km before dissipating.

The voluminous lava flows on the SE side erupted during the eruption in the past days (s. b.) were no longer alimented this morning according to INSIVUMEH, although their fronts and sides remain incandescent (likely, caused by the remaining fluid lava contained in their centers which continues to move a bit).
Fuego’s 10th paroxysm in 2016 – summary:

Turrialba (Costa Rica): The volcano continues to produce intermittent mild ash emissions in phases that last several hours to days. During yesterday, ash plumes rose 200-300 meters from the crater and were quickly blown and dispersed to the west.
In short, activity has not changed significantly during the past week. Costa Rica’s Red Sismológica Nacional (RSN) records elevated tremor during such episodes and closely follows the volcano’s activity.

Calbuco (Southern Chile and Argentina): The alert level was raised a notch last week, as volcanologists from SERNAGEOMIN started to record a significant increase in seismicity associated with a slight inflation of the volcanic edifice,- typical signs of magma intrusion at depth under the volcano.
No particular signs of unrest are (for now) visible on the surface of the volcano which had a spectacular series of eruptions in April last year.

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 13 May 2016)
Bagana (Bougainville Island, Papua New Guinea): intermittent mild ash emissions (updated 23 May 2016)
Batu Tara (Sunda Islands, Indonesia): strombolian explosions, ash plumes up to 500 m, extrusion of a small lava dome with rockfalls (updated 28 Nov 2015)
Bristol Island (United Kingdom, South Sandwich Is): new eruption since late April 2016 (updated 6 Jun 2016)
Colima (Western Mexico): intermittent mild to moderate explosions (updated 1 Jun 2016)
Copahue (Chile/Argentina): seismic unrest, occasional ash venting (updated 22 Mar 2016)
Dukono (Halmahera): mild strombolian activity, continuous intense ash emissions (updated 1 Jun 2016)
Erebus (Antarctica): active lava lake in summit crater (updated 8 Dec 2014)
Erta Ale (Danakil depression, Ethiopia): overflowing lava lake (updated 2 Mar 2016)
Fuego (Guatemala): lava flows on S and W flanks, lava fountaining from summit vent (updated 23 May 2016)
Ibu (Halmahera, Indonesia): stromolian and phreatomagmatic explosions (updated 29 Oct 2015)
Karymsky (Kamchatka): occasional small explosions, thermal anomaly (updated 5 May 2016)
Kerinci (Sumatra): intermittent ash explosions (updated 5 Jun 2016)
Kilauea (Hawai’i): new surface lava flows from breakouts N and NE of Puu Oo since 24 May 2016 (updated 28 Apr 2015)
Kliuchevskoi (Kamchatka): mild strombolian activity in summit crater (updated 4 Jun 2016)
Langila (New Britain, Papua New Guinea): ash emissions (updated 13 May 2016)
Masaya (Nicaragua): active lava lake ini summit crater (updated 6 Jun 2016)
Nyiragongo (DRCongo): new vent on crater floor (updated 1 Jun 2016)
Ol Doinyo Lengai (Tanzania): effusion of natrocarbonatite lava inside the crater (updated 8 Jul 2013)
Pacaya (Guatemala): intense spattering from intra-crater cone (updated 29 Mar 2016)
Popocatépetl (Central Mexico): degassing, sporadic explosions, slowly growing lava dome (updated 13 Jun 2016)
Reventador (Ecuador): lava flow on SW flank (updated 24 Feb 2016)
Sakurajima (Kyushu, Japan): sporadic vulcanian explosions from Minamidake and Showa crater (updated 3 Jun 2016)
Sangay (Ecuador): mild strombolian activity in summit crater (updated 20 May 2016)
Santiaguito (Guatemala): intermittent strong explosions from growing Caliente dome (updated 26 May 2016)
Semeru (East Java, Indonesia): lava flow, small strombolian explosions (updated 13 Jun 2016)
Shiveluch (Kamchatka): growing lava dome (updated 9 May 2016)
Sinabung (Sumatra, Indonesia): continuing pyroclastic flows (updated 10 Jun 2016)
Stromboli (Eolian Islands, Italy): weak, intermittent strombolian explosions (updated 23 May 2016)
Suwanose-jima (Ryukyu Islands): strombolian explosions (updated 13 Jun 2016)
Turrialba (Costa Rica): intermittent mild to moderate ash emissions (updated 3 Jun 2016)
Villarrica (Central Chile): lava lake in summit crater, spattering, strombolian explosions (updated 4 Apr 2016)
Yasur (Tanna Island, Vanuatu): ash emissions, weak strombolian explosions (updated 13 Nov 2015)