Volcanic Activity Worldwide: Tuesday August 23, 2016

Steam/ash plume from Klyuchevskoy volcano this morning (KVERT webcam)

Klyuchevskoy (Kamchatka): The eruption of the volcano continues with the effusion of a lava flow on the eastern flank and intermittent explosive activity at the summit.
A phase of near-continuous small to moderate explosions occurred last night (this morning in Kamchatka), generating an ash plume that rose to 23,000 ft (7 km) and drifted southeast.

Chikurachki (Paramushir Island): KVERT lowered the Aviation Color Code back to green.
No more signs of eruptive activity (ash plumes, thermal anomalies) have been detected during the past days, but according to KVERT, a “moderate gas-steam activity of the volcano continues.”

Sinabung (Sumatra, Indonesia): Small to moderate explosions continue to occur at rates of once or twice per day on average.
Yesterday morning (08:53 local time), an eruption generated an ash plume that rose 1300 m above the summit and dissipated into easterly directions. A small pyroclastic flow also descended the eastern flank and reached 1500 m length.

Sabancaya (Peru): The volcano remains restless. A strong emission of steam with some ash occurred this morning. In its latest report, IGP reported only low internal (seismic, deformation) and surface activity (degassing) of the volcano during the first half of August.
The Volcanic Ash Advisory Center Buenos Aires (VAAC) issued the following report: VA REPORTED AT 23/1311Z OBS VA DTG:23/1345Z

Villarrica (Central Chile): The volcano has increased its activity during the past two weeks: glow from the summit has reappeared in early August and become more pronounced lately.
This suggests a rise of the magma column in the conduit where a small lava lake is often present (typical for the volcano) and/or spattering or small strombolian activity.
Satellite-based measurements of heat output also show an increase recently.

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 12 Jul 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)
Bromo (East Java, Indonesia): intermittent mild ash emissions (updated 2 Aug 2016)
Chikurachki (Paramushir Island): ash emissions since 18 Aug 2016 (updated 19 Aug 2016)
Colima (Western Mexico): intermittent mild to moderate explosions (updated 14 Aug 2016)
Copahue (Chile/Argentina): strombolian activity from new intra-crater cone (updated 4 Jul 2016)
Dukono (Halmahera): mild strombolian activity, continuous intense ash emissions (updated 14 Aug 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 30 Jul 2016)
Gamalama (Halmahera): small ash eruption on 3 Aug 2016 (updated 5 Aug 2016)
Ibu (Halmahera, Indonesia): stromolian and phreatomagmatic explosions (updated 29 Oct 2015)
Kilauea (Hawai’i): new surface lava flows from breakouts N and NE of Puu Oo since 24 May 2016 (updated 28 Apr 2015)
Klyuchevskoy (Kamchatka): strombolian explosions in summit crater, active lava flows on SE flank (updated 10 Aug 2016)
Masaya (Nicaragua): active lava lake ini summit crater (updated 12 Jul 2016)
Nevado del Ruiz (Colombia): intermittent mild to moderate ash emissions (updated 29 Jul 2016)
Nevados de Chillán (Central Chile): sporadic ash emissions (updated 10 Aug 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): strombolian explosions (updated 29 Jul 2016)
Popocatépetl (Central Mexico): degassing, sporadic explosions, slowly growing lava dome (updated 14 Aug 2016)
Reventador (Ecuador): lava flow on SW flank (updated 8 Aug 2016)
Sakurajima (Kyushu, Japan): sporadic vulcanian explosions from Minamidake and Showa crater (updated 25 Jul 2016)
Sangay (Ecuador): mild strombolian activity in summit crater (updated 20 May 2016)
Semeru (East Java, Indonesia): growing lava dome, mild strombolian activity in summit crater (updated 29 Jul 2016)
Shiveluch (Kamchatka): growing lava dome (updated 14 Aug 2016)
Sinabung (Sumatra, Indonesia): continuing pyroclastic flows (updated 8 Aug 2016)
Stromboli (Eolian Islands, Italy): weak, intermittent strombolian explosions (updated 23 May 2016)
Suwanose-jima (Ryukyu Islands): steaming, occasional ash emissions from On-take crater (updated 17 Aug 2016)
Turrialba (Costa Rica): near-continuous ash emissions (updated 25 Jul 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 14 Aug 2016)