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Volcanic activity worldwide 1 Jun 2016: Colima volcano, Bromo, Semeru, Dukono, Turrialba, Nyiragongo...

wo, 1 jun 2016, 21:00
21:00 PM |
Ash emission from Bromo this morning (photo: Andi / VolcanoDiscovery Indonesia)
Ash emission from Bromo this morning (photo: Andi / VolcanoDiscovery Indonesia)
View of Semeru's lava flow on the southern flank (PVMBG webcam)
View of Semeru's lava flow on the southern flank (PVMBG webcam)
Small eruption of Colima this morning (Webcams de Mexico)
Small eruption of Colima this morning (Webcams de Mexico)
Turrialba seen during a brief window of clear weather today (OVSICORI-UNA webcam)
Turrialba seen during a brief window of clear weather today (OVSICORI-UNA webcam)
Bristol island volcano on 26 May, showing a dark spot in its NW center, possibly a new cinder cone (image: Aqua/MODIS/NASA via South Sandwich Islands Volcano Monitoring Blog)
Bristol island volcano on 26 May, showing a dark spot in its NW center, possibly a new cinder cone (image: Aqua/MODIS/NASA via South Sandwich Islands Volcano Monitoring Blog)
Bromo (East Java, Indonesia): (1 Jun) Our expedition leader Andi currently on location reported that the volcano's activity has been increased since 4 days ago, with visible activity consisting of mild phreatic explosions and strong steaming.
The volcano observatory has been registering continuous tremor as well. Small ballistic ejecta (bombs) can be seen from the rim of the crater.

Semeru (East Java, Indonesia): The activity has not changed significantly for several months at Java's highest and most active volcano. The lava flow on the upper southern flank of the volcano remains active. Due to the steep incline, incandescent rockfalls from its side and front are relatively frequent.
This effusive activity is also accompanied by ongoing explosive activity: intermittent, small to moderate strombolian explosions from the summit vent.
While these explosions have been occurring relatively frequently, their average size has been much smaller than several years ago, when the volcano's typical activity had been best characterized by vulcanian-type explosions, a few daily strong blasts generating ash columns rising up to a few km (with no or little effusive activity on the other hand). This difference could be explained by a change towards less viscous lava being erupted recently, allowing for easier degassing and effusive activity.

Dukono (Halmahera): Ash emissions from the volcano continue to occur almost daily. This morning, the ash plume monitored by Darwin VAAC extended 30 km to the WNW.

Colima (Western Mexico): The activity of the volcano remains essentially unchanged, currently relatively low: infrequent small to moderate explosions produce ash plumes that rise 1-2 km, accompanying the very slow growth of a lava dome inside the summit crater.

Turrialba (Costa Rica): Activity has decreased significantly during the past days. Since 2 am local time on 27 May, RSN has detected a substantial and abrupt decrease in the level of seismic activity, which also marks the end of the most recent period of frequent, moderate ash emissions.
During the past days, seismic activity has been dominated mainly by small low-frequency volcanic earthquakes and harmonic tremors of very low energy and short duration, reflecting internal fluid movements.
When not obscured in clouds, only a steam plume can be seen emerging from the active crater. No recent ash falls or sulfur smells in the Central Valley have been reported.

Nyiragongo (DRCongo): (1 Jun) One of the local mountain guides reported that as of 30 May, no more lava flows from the side vent were active and cascading into the main lava lake, although lava bubbling could still be seen at the side vent.
Our next group will visit the volcano from 18-21 June and hopefully be able to report the volcano's current activity in more detail.

Bristol Island (United Kingdom, South Sandwich Is): Eruptive activity continues at the remote volcano and might have become more intense recently.
Satellite images from past days show ash emissions that appear stronger and more regular than earlier on, drifting into northeasterly directions. Also, recent imagery shows a dark patch on the island itself, near the summit, which could be a new cinder cone and/or associated lava flows.
According to the South Sandwich Islands Volcano Monitoring Blog's latest update, the recent satellite images "show some faintly dark lines suggesting the presence of lava flows and also a dark patch just west-northwest of the Mount Sourabaya area."

Volcano Activity Summary for 1 Jun 2016:

Currently erupting:

Ambrym (Vanuatu): active lava lakes in several craters (updated 13 May 2016)
Aso (central Kyushu, Japan): degassing, sporadic steam / ash explosions (updated 8 Mar 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 1 Jun 2016)
Chikurachki (Paramushir Island): new eruption since end of March 2016 (updated 31 Mar 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 emissions (updated 1 May 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 27 Apr 2016)
Langila (New Britain, Papua New Guinea): ash emissions (updated 13 May 2016)
Masaya (Nicaragua): active lava lake ini summit crater (updated 6 May 2016)
Momotombo (Nicaragua): intermittent vulcanian explosions (updated 29 Mar 2016)
Nevado del Ruiz (Colombia): intermittent mild to moderate ash emissions (updated 23 May 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 20 Apr 2016)
Reventador (Ecuador): lava flow on SW flank (updated 24 Feb 2016)
Sakurajima (Kyushu, Japan): sporadic vulcanian explosions from Minamidake and Showa crater (updated 20 May 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 1 Jun 2016)
Shiveluch (Kamchatka): growing lava dome (updated 9 May 2016)
Sinabung (Sumatra, Indonesia): continuing pyroclastic flows (updated 22 May 2016)
Stromboli (Eolian Islands, Italy): weak, intermittent strombolian explosions (updated 23 May 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)

Eruption warning / minor activity:

Alaid (Northern Kuriles): intense thermal signal from summit crater, strong degassing (updated 20 May 2016)
Awu (North Sulawesi & Sangihe Islands): seismic unrest, eruption warning (updated 13 May 2016)
Barren Island (Indian Ocean): weak thermal hot spot (updated 3 Mar 2016)
Bezymianny (Central Kamchatka Depression): steaming, weak seismic activity (updated 3 Jul 2014)
Bromo (East Java, Indonesia): steaming, ash emissions (updated 1 Jun 2016)
Bulusan (Luzon Island, Philippines): occasional sporadic explosions (updated 23 Feb 2016)
Canlaon (Central Philippines): occasional sporadic explosions (updated 30 Mar 2016)
Cerro Negro (Nicaragua): increased earthquake activity (updated 16 Feb 2016)
Chirinkotan (Northern Kuriles, Russia): sporadic ash emissions (updated 28 Jul 2015)
Cleveland (Aleutian Islands, Alaska): energetic steaming and highly elevated temperatures (updated 20 May 2016)
Etna (Sicily, Italy): weak, dilute ash emissions from NE crater (updated 19 Apr 2014)
Heard (Australia, Southern Indian Ocean): strombolian activity, lava flow from Mawson Peak summit crater (updated 1 Feb 2016)
Karangetang (Siau Island, Sangihe Islands, Indonesia): rockfalls, glowing lava dome (updated 13 Jan 2016)
Kuchinoerabu-jima (Ryukyu Islands): large explosive eruption on 29 May 2015 (updated 27 Mar 2015)
Lokon-Empung (North Sulawesi, Indonesia): seismic unrest, eruption warning (updated 9 Mar 2016)
Manam (Papua New Guinea): large explosion on 31 July 2015 (updated 4 Mar 2016)
Merapi (Central Java, Indonesia): sporadic phreatic explosions (updated 21 Aug 2015)
Michael (United Kingdom, South Sandwich Is): unspecified activity detected as hot spot on satellite data (updated 3 Oct 2015)
Nevados de Chillán (Central Chile): sporadic ash emissions, seismic unrest (updated 9 May 2016)
Niigata-Yake-yama (Honshu): sporadic explosions, seismic unrest (updated 8 May 2016)
Nyamuragira (DRCongo): lava lake in summit crater disappeared in early April 2016 (updated 16 Apr 2016)
Ontake-san (Honshu): steaming, low seismic activity (updated 18 Dec 2014)
Papandayan (West Java): steaming (updated 6 May 2013)
Pavlof (Alaska Peninsula, USA): possible new eruption since 13 May (updated 14 May 2016)
Piton de la Fournaise (La Réunion): eruption ended or paused (updated 27 May 2016)
Poas (Costa Rica): phreatic explosions (updated 14 Oct 2014)
Rincón de la Vieja (Costa Rica): sproadic hydrothermal explosions (updated 3 May 2016)
Sabancaya (Peru): steaming, elevated seismic activity (updated 11 Oct 2015)
Sacabaya (Northern Chile, Bolivia and Argentina)
San Cristobal (Nicaragua): intermittent ash explosions (updated 24 Apr 2016)
San Miguel (El Salvador): intermittent ash emissions (updated 15 Jan 2016)
Sangeang Api (Indonesia): weak lava extrusion from summit crater (updated 11 Nov 2015)
Sirung (Pantar Island, Indonesia ): degassing (updated 10 Jul 2015)
Slamet (Central Java): steam emissions (updated 12 Jan 2015)
Telica (Nicaragua): lava glow from crater, degassing, occasional light ash emissions (updated 9 May 2016)
Turrialba (Costa Rica): steaming, degassing, seismic unrest (updated 1 Jun 2016)
Ubinas (Peru): sporadic vulcanian explosions (updated 16 Jan 2016)

Vorig nieuws
Tue, 31 May 2016, 21:00
Map of the new lava flows from the 24 May breakouts
Kilauea (Hawai'i): Early in the morning of 24 May (at 06:50 local time), a sudden surge in lava supply caused the main lava tube carrying the lava underground away from Pu'u 'O'o to rupture. This resulted in two so-called surface lava breakouts located about 500 m N and NE from the cone, feeding two new large surface lava flows. ... Lees alle
Sun, 29 May 2016, 21:00
Bromo (East Java, Indonesia): The activity of the volcano remains low. Sporadic, relatively weak ash emissions continue to occur from time to time and a weak glow is visible sometimes at night. ... Lees alle
Fri, 27 May 2016, 21:00
Strombolian activity from Etna's Voragine on Wednesday
Etna (Sicily, Italy): (27 May) The violent strombolian activity from the Voragine summit crater continued all though Wednesday (25 May) and the following night, but gradually decreased and ceased yesterday. At the moment, no significant eruptive activity is going on. ... Lees alle
Thu, 26 May 2016, 21:00
Piton de la Fournaise (La Réunion): (26 May) A new eruption - the first in 2016 - started at the volcano this morning, around 08:05 local time when the volcano observatory registered a strong tremor signal, typical for the onset of Piton de la Fournaise's fissure eruptions. ... Lees alle
Tue, 24 May 2016, 21:00
Strombolian activity at the Voragine Crater (Osservatorio Meteorologico Nunziata webcam)
Etna (Sicily, Italy): (23 May) Starting from 21:00 this evening weak Strombolian activity has again started from the Voragine crater together with some ash emission. ... Lees alle
 

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