Volcano news by volcanologist Janine Krippner and Armand Vervaeck (Archive Nr. 3)

For the latest part of Janine's and Armand's report - Click here


 

Update December 17, 21:09 UTC (Armand) : Volcano Activity for the week of December 9 until December 15
The Weekly Volcanic Activity Report is a cooperative project between the Smithsonian's Global Volcanism Program and the US Geological Survey's Volcano Hazards Program.

Screen Shot 2015-12-17 at 20.37.03

Etna | Sicily (Italy)
INGV reported that grayish-brown ash plumes rose from Etna's Northeast Crater on 9 December and drifted SE. Seismicity had significantly decreased.

Fuego | Guatemala
INSIVUMEH reported that during 10-12 December explosions at Fuego generated ash plumes that rose 450-950 m above the crater and drifted as far as 12 km W and SW. Shock waves from the explosions vibrated nearby homes. Incandescent material was ejected 200 m high, landed on the flanks, and then formed small avalanches in the Santa Teresa (SW), Taniluyá (SW), and Las Lajas (SE) drainages. Block avalanches reached vegetated areas during 11-12 December. Activity increased during the night of 14-15 December, characterized by an increased number of explosions (4-6 per hour). Ash plumes rose almost 1 km high and drifted 10-15 km NE, E, and SE. Two 800-m-long lava flows were active in the Trinidad (S) and Santa Teresa drainages.

Kanlaon | Philippines
PHIVOLCS reported that two volcanic earthquakes at Kanlaon were accompanied by a one-minute, low-energy, gray ash emission at 0513 on 11 December. Observers noted ash emissions at 0951, 1008, 1140, and 0101 on 13 December which rose 200-300 m and drifted SW. The emissions were not detected by the seismic network, indicating a shallow source. Trace amounts of ashfall were reported in Sitio Bais, Brgy Yubo, and La Carlota City on the W flank and Brgy Sag-ang and La Castellana on the SW flank. The Alert Level remained at 1 (on a scale of 0-5).

Masaya | Nicaragua
INETER reported that during 11-12 December a lava lake formed in Masaya's Santiago Crater, small explosions were recorded, and rumbling was heard.

Momotombo | Nicaragua
Based on INETER and SINAPRED reports, activity at Momotombo continued through 10 December. Fieldwork revealed a small, incandescent, circular crater halfway up Momotombo's E flank that was fuming during the morning on 6 December. An explosion on 7 December destroyed part of the crater. On 10 December SINAPRED reported that material had been accumulating in the crater since the beginning of the eruption on 1 December. Seismicity during 9-14 December was low and stable.

Tengger Caldera | Eastern Java (Indonesia)
Based on satellite and webcam images, the Darwin VAAC reported that during 9-15 December ash plumes from Tengger Caldera's Bromo cone rose to an altitude of 3 km (10,000 ft) a.s.l. and drifted 45-65 km NE, NW, W, and SW. On 15 December BNPB reported that activity at the volcano remained high; gray-brown ash plumes rose 1.5 km above the crater and drifted W and NW. Weak rumbling was noted.

Zhupanovsky | Eastern Kamchatka (Russia)
KVERT reported quiet conditions at Zhupanovsky after a partial collapse of the S central sector on 27 and 30 November. Satellite images detected a very weak thermal anomaly over the volcano on 4 and 7 December. Moderate levels of fumarolic activity continued. On 10 December the Aviation Color Code was lowered to Yellow.


 

Update December 17, 10:34 UTC (Armand) : BROMO, Java, Indonesia


 

Update December 16, 18:48 UTC (Armand) : FUEGO, Guatemala
Fuego has increased its activity the last couple of days. 3 lava streams were observed this morning. Below a beautiful and impressive eruption picture on December 13.
Local reports are mention fire columns like a train locomotive 400 meter above the crater.

Screen Shot 2015-12-16 at 18.56.05

Update December 16, 18:45 UTC (Armand) : SINABUNG, Indonesia
Sinabung remains by far the most spectacular volcano at the moment. The pyroclastic flows are still raging


 

Update December 14, 17:11 UTC (Armand) : COLIMA, Mexico

Update December 14, 17:09 UTC (Armand) : SINABUNG, Indonesia

Update December 14, 16:43 UTC (Armand) : COLIMA, Mexico


 

Update December 12, 09:12 UTC (Armand) : ETNA, Sicily, Italy

Screen Shot 2015-12-12 at 10.14.55


 

Update December 11, 17:04 UTC (Armand) : EL HIERRO, Canary Islands, Spain
2 new slight earthquakes off the South Western coast of El Hierro. Both at a depth of 33 km (same depth as most of the previous quakes)
(in-depth article)

Screen Shot 2015-12-11 at 17.57.45

Update December 11, 08:31 UTC (Armand) : RINJANI, Indonesia

Update December 11, 08:31 UTC (Armand) : KANLAON, Philippines


 

Update December 9, 23:37 UTC (Armand) : Volcano Activity for the week of December 2 until December 8
The Weekly Volcanic Activity Report is a cooperative project between the Smithsonian's Global Volcanism Program and the US Geological Survey's Volcano Hazards Program.

Screen Shot 2015-12-10 at 00.33.19

Etna | Sicily (Italy)
INGV reported that after a progressive intensification of activity during the evening of 2 December, an eruption at Etna's Voragine Crater peaked between 0330 and 0410 on 3 December. During the peak period sustained lava fountains rose over 1 km above the crater with some jets of hot material rising 3 km high. An ash plume rose several kilometers high and drifted NE, causing ashfall in Linguaglossa, Francavilla di Sicilia, Milazzo, Messina, and Reggio Calabria. Activity had almost ceased by dawn. This event was among the largest in the last 20 years, similar to large events occurring at the same crater on 22 July 1998 and 4 September 1999.
At about 1000 on 4 December renewed activity at Voragine Crater was characterized by tall lava fountains and an ash plume that rose 7-8 km high. The ash plume had a mushrooming top and produced deposits of coarse-grained pyroclastic material on the upper SW flank above 2 km elevation. Ashfall was reported in Giarre-Zafferana Etnea on the E flank. The activity was accompanied by frequent ash emissions from a new pit crater that had recently opened on the upper E flank of the New Southeast Crater (NSEC) cone. Two more events occurred at Voragine Crater during 4-5 December, between 2130 and 2215 on 4 December and 1555 and 1635 on 5 December, again producing tall lava fountains and many-kilometer-high ash plumes.
During the evening of 5 December activity at Voragine Crater progressively diminished. Between 0300 and 0400 on 6 December surveillance cameras recorded the onset of vigorous Strombolian activity from the vent on the E flank of the NSEC cone. Repeated collapses of both old and new material from the cone's flank generated hot avalanches that traveled a few hundred meters E towards the Valle del Bove. Ongoing effusive activity through the day produced two lava flows; one advanced NE for less than 1 km and the other advanced E. Strombolian activity continued through the evening. On 7 December a second vent on the E part of NSEC was also active, and the main lava flow had advanced 4 km. During the early morning hours of 8 December Strombolian activity progressively diminished and then ended. Later that afternoon weak Strombolian activity and ash emission were observed at the Northeast Crater.

INGV Catania Etna tremor graph at the time of writing this update : strong decrease of activity

INGV Catania Etna tremor graph at the time of writing this update : strong decrease of activity

Momotombo | Nicaragua
Based on satellite and webcam observations, and seismic data, the Washington VAAC reported that during 2-3 December ash plumes from Momotombo rose to an altitude of 2.4 km (8,000 ft) a.s.l. and drifted 90-225 km NW and WNW.

Tengger Caldera | Eastern Java (Indonesia)
PVMBG reported that during 15 November-4 December white plumes from Tengger Caldera's Bromo cone rose as high as 150 m above the crater, and an intense sulfur dioxide odor was noted at the Bromo observation post. On 15, 23, and 27 November dense ash plumes rose 150 m above the crater rim. RSAM values increased at the beginning of November, and then sharply increased in the beginning of December. Based on seismic analysis, visual observations, and hazard potential, the Alert Level was raised to 3 (on a scale of 1-4) on 4 December. Residents and visitors were warned not to approach the crater within a radius of 2.5 km.
Based on information from PVMBG and satellite images, the Darwin VAAC reported that during 5 and 7-8 December ash plumes rose to an altitude of 3 km (10,000 ft) a.s.l. and drifted 55-185 km W, SW, S, and SE.

Screen Shot 2015-12-10 at 00.43.29

Zhupanovsky | Eastern Kamchatka (Russia)
KVERT reported moderate eruptive activity at Zhupanovsky during 27 November-4 December. Explosions on 27 and 30 November generated ash plumes that rose to altitudes of 6-7 km (19,700-23,000 ft) a.s.l. and drifted 300 km E and SE. Pyroclastic flow deposits 15.5 km long were observed on the S flank after the 30 November event. Weak thermal anomalies were detected in satellite images over the crater on both of those days, and in the area of the pyroclastic flow deposits on 30 November and 3 December.


 

Update December 6, 22:38 UTC (Armand) : ETNA, Sicily, Italy
Below both the tremor graphics and the erupting cone at the moment of writing this update.
The time shown on the image is the local Italian time (1 hour behind UTC time)
The webcam used for this screenshot can be followed here

Screen Shot 2015-12-06 at 23.31.40 Screen Shot 2015-12-06 at 23.35.08

Update December 6, 09:54 UTC (Armand) : ETNA, Sicily, Italy


 

Update December 5, 11:55 UTC (Armand) : ETNA, Sicily, Italy
What a beautiful picture of the heavily erupting Mount Etna

Update December 5, 11:59 UTC (Armand) : SINABUNG, Indonesia
Explosion on December 3 at 06:40 (image via @KAROglobal)

Screen Shot 2015-12-05 at 12.58.51

Update December 5, 11:55 UTC (Armand) : ETNA, Sicily, Italy

Screen Shot 2015-12-05 at 13.03.29

Update December 5, 11:55 UTC (Armand) : BROMO, Java, Indonesia


 

Update December 4, 14:04 UTC (Armand) : ETNA, Sicily, Italy
Renewed increased activity (see volcanic tremor graph) today

Screen Shot 2015-12-04 at 14.59.04 Screen Shot 2015-12-04 at 14.58.13

Update December 4, 11:17 UTC (Armand) : EL HIERRO, Canary Islands, Spain
A (rare) M2.8 at 12 km depth earthquake below the new cone (2011 activity) - See also in our in-depth El Hierro journal

Screen Shot 2015-12-04 at 12.07.27


 

Update December 3, 22:56 UTC (Armand) : Volcano Activity for the week of November 25 until December 1
The Weekly Volcanic Activity Report is a cooperative project between the Smithsonian's Global Volcanism Program and the US Geological Survey's Volcano Hazards Program.

Screen Shot 2015-12-03 at 23.52.44

Fuego | Guatemala
INSIVUMEH reported that on 29 November activity at Fuego increased significantly, characterized by large and strong explosions, ash plumes, and lava flows. Ash plumes rose as high as 2.2 km above the crater and drifted 40 km W and SW. Lava fountains rose 500 m above the crater, feeding four lava flows that traveled 3-4 km down the Ceniza, Trinidad, Las Lajas, and Santa Teresa drainages. Ash fell in Panimache I and II (8 km SW), Morelia (9 km SW), Santa Sofía (12 km SW), El Porvenir (8 km ENE), Yucales (12 km SW), Rochelle, Ceylon, and other neighboring communities. Activity declined on 30 November; lava fountains rose 100-150 m, and ash plumes rose 1 km and drifted 25 km WSW. Lava flows were active in five drainages, including the Honda drainage (E flank). On 1 December weak-to-moderate explosions generated ash plumes that rose 400-800 m and drifted 10-12 km W and SW. Lava fountains continued to rise as high as 150 m. The five lava flows were at most 3 km long, and small pyroclastic flows descended the Honda drainage.

Zhupanovsky | Eastern Kamchatka (Russia)
Based on satellite images, KVERT reported that on 28 November ash plumes from Zhupanovsky rose to altitudes of 5-6 km (16,400-19,700 ft) a.s.l. and drifted 285 km E. The Aviation Color Code was raised to Orange. IVS FED RAS (Institute Volcanology and Seismology Far East Division of the Russian Academy of Sciences) observers noted an ash explosion at 0356 on 1 December; the Tokyo VAAC reported that the resulting ash plume rose to an altitude of 9 km (29,500 ft) a.s.l. and drifted 60 km SE.

Kanlaon | Philippines
PHIVOLCS reported that the seismic network for Kanlaon detected 11 volcanic earthquakes during 24-25 November. Emissions of gas and ash rose 150 m above the crater and drifted SW on 25 November. The Alert Level remained at 1 (on a scale of 0-5).

Momotombo | Nicaragua
INETER reported that at 0749 on 1 December an explosion at Momotombo generated a gas-and-ash plume that rose 1 km above the crater and drifted SW. Explosions at 0817, 0842, and 0855 generated ash plumes that rose 300 m. Gas emissions were visible the rest of the day. SINAPRED reported that during 1-2 December explosions ejected incandescent tephra and a slow-moving lava flow on the N flank was observed. Ashfall was reported in nearby communities to the W and SW, including La Concha, Los Arcos, Flor de la Piedra, La Paz Centro, and Leóin. Some families in La Paz Centro self-evacuated.

Telica | Nicaragua
INETER reported that four 5-minute-long explosions at Telica were detected at 0602, 0818, 0934, and 1124 on 25 November, and generated ash-and-ash emissions. On 26 November multiple gas-and-ash explosions were detected; the strongest explosion occurred at 0941 and produced an ash plume that rose more than 800 m above the crater. During 26-27 November a total of 29 explosions were detected, with 16 of those producing ash plumes.

Update December 3, 11:53 UTC (Armand) : ETNA, Sicily, Italy
The ash cloud at the time of writing this update (see image below)

Screen Shot 2015-12-03 at 12.50.24

Screen Shot 2015-12-03 at 12.55.35

Image courtesy INGV


 

Update December 2, 23:58 UTC (Armand) : MOMOTOMBO, Nicaragua

Update December 2, 15:26 UTC (Armand) : MOMOTOMBO, Nicaragua

Update December 2, 15:20 UTC (Armand) : FUEGO, Guatemala
Great video from the Fuego eruption on November 30

Update December 2, 14:16 UTC (Armand) : SANTIAGUITO, Guatemala

Update December 2, 12:05 UTC (Armand) : MOMOTOMBO, Nicaragua

Update December 2, 12:05 UTC (Armand) : VESUVIUS, Italy
What a beautiful and impressive historic picture. American soldiers who just liberated Italy are watching an incredible eruption of the Vesuvius volcano (image via @Dope_History)

Screen Shot 2015-12-02 at 12.56.02


Update December 1, 17:48 UTC (Armand) : MOMOTOMBO, Nicaragua
Explosion earlier today (via René Goad)

Update December 1, 12:58 UTC (Armand) : SINABUNG, Indonesia
Yahoo has published 10 great pictures of what a dangerous volcano can do with the nearby villages when the villagers have to get away to survive the dangerous pyroclastic flows. Below just 1 of the 10.

Screen Shot 2015-12-01 at 14.50.57

Click on this picture to be linked to the article

Update December 1, 13:41 UTC (Armand) : COPAHUE, Chile

Update December 1, 13:02 UTC (Armand) : FUEGO, Guatemala
A Reuters VIDEO of the Monday Fuego eruption

Update December 1, 12:58 UTC (Armand) : SANTIAGUITO, Guatemala
@CultureVolcan reports that a relatively strong explosion occurred yesterday Image courtesy @stereo100noticias

Screen Shot 2015-12-01 at 13.57.23

Update December 1, 12:55 UTC (Armand) : FUEGO, Guatemala
According to @insivumehgt, Fuego volcano eruption has ended after 42 hours.

Update December 1, 11:22 UTC (Armand) : RINJANI, Indonesia

Screen Shot 2015-12-01 at 12.18.12


 

Update November 30, 00:50 UTC (Armand) : POPOCATEPETL, Mexico

Update November 30, 00:49 UTC (Armand) : FUEGO, Guatemala


 

Volcano Activity for the week of November 18 until November 24 (Armand, November 26)
The Weekly Volcanic Activity Report is a cooperative project between the Smithsonian's Global Volcanism Program and the US Geological Survey's Volcano Hazards Program.

Screen Shot 2015-11-26 at 12.42.15

Awu | Sangihe Islands (Indonesia)
PVMBG reported that during 1-24 November the seismic network at Awu detected a significant increase in seismicity, especially in the number of shallow volcanic earthquakes (from a baseline maximum of 4 per day to 74 events on 24 November). The Alert Level was increased to 2 (on a scale of 1-4). Fog prevented visual observations.

Screen Shot 2015-11-26 at 12.59.27

Photo by Kristianto, 1995

Ibu | Halmahera (Indonesia)
PVMBG reported that during 1-17 November white-to-gray plumes rose as high as 450 m above Ibu’s summit crater. Seismicity was dominated by signals indicating surface or near-surface activity, and the continued growth of the lava dome. The Alert Level remained at 2 (on a scale of 1-4). The public was warned to stay at least 2 km away from the active crater, and 3.5 km away on the N side.

Kanlaon | Philippines
PHIVOLCS reported that the seismic network for Kanlaon detected an explosion-type signal beginning at 0930 on 23 November, culminating with an 8-minute-long steam explosion. Observers reported that a white plume rose 1-1.5 km above the crater and drifted SW, and rumbling was heard in local areas. Only four volcanic earthquakes had been recorded during the previous week, but after the explosion, the network detected volcanic tremor that lasted for five hours. The Alert Level was raised to 1 (on a scale of 0-5). Continuous steam emissions with minor ash content were observed the next morning.

Telica | Nicaragua
Based on wind and satellite data, pilot observations, and webcam images, the Washington VAAC reported that on 22 November an ash plume from Telica rose to an altitude of 2.4 km (8,000 ft) a.s.l. and drifted almost 100 km W. According to news articles, (at least) two explosions, at 0847 and 0848, generated ash plumes that rose 2 km and ejected tephra at least 900 m away. An unstated number of people living within a 900-m-radius evacuated, and residents in Agua Fría (also 900 m away) noted it was the first time variously-sized lapilli and blocks had reached their community. Ash fell in at least 70 communities in the municipalities of Quezalguaque (13 km SW), Posoltega (16 km WSW), Chichigalpa (20 km WSW), and Chinandega (30 km W).

Tengger Caldera | Eastern Java (Indonesia)
PVMBG reported that during 1 August-16 November white plumes from Tengger Caldera's Bromo cone rose as high as 150 m above the crater, and an intense sulfur dioxide odor was noted at the Bromo observation post. On 5, 8, and 12 November booming was reported and emissions rose 1.2 km above the crater; diffuse amounts of ash were present in the emissions on 12 November. Seismicity was dominated by tremor, but also included deep and shallow volcanic earthquakes. The Alert Level remained at 2 (on a scale of 1-4). Residents and visitors were warned not to approach the crater within a radius of 1 km.


 

Update November 25, 17:49 UTC (Armand) : STROMBOLI, Eolian Islands, Italy

Update November 25, 17:05 UTC (Armand) : FUEGO, Guatemala

Update November 25, 14:33 UTC (Armand) : COLIMA, Mexico
Spectacular Lightning in Ash Clouds from Colima volcano, Mexico (Timelapse) captured by Richard Roscoe (copyright photovolcanica.com)


 

Update November 24, 09:20 UTC (Armand) : RINJANI, Indonesia

Update November 24, 09:15 UTC (Armand) : Mt KANLAON, Philippines
The first image of the ash explosion at Mount Kanlaon yesterday. The bigger ash cloud on the left is in fact a less concentrated cloud from the ash cloud above the crater on the right (see below for the location of the crater on the areal map)


Update November 23, 17:18 UTC (Armand) : Mt KANLAON, Philippines
Phivolcs reports a minor ash explosion (see their notice below).
Do not forget to watch the (drone?) video from NAVA.TV to have a full impression of this beautiful volcano located in the midst of a rain forest.

Screen Shot 2015-11-23 at 18.19.11 Screen Shot 2015-11-23 at 18.21.26 Screen Shot 2015-11-23 at 18.22.31

Update November 23, 17:18 UTC (Armand) : COPAHUE, Chile
Moderate eruptive activity continues (via @CultureVolcan)

Screen Shot 2015-11-23 at 18.15.30

Update November 23, 17:14 UTC (Armand) : FUEGO, Guatemala


 

Update November 22, 14:06 UTC (Armand) : EL HIERRO, Canary Islands, Spain
We have restarted our in-depth reporting of the El Hierro activity below the Canary Island of El Hierro. A number of events are taking place offshore of the western tip of the island, the last one on Sunday Magnitude 3.1 at a depth of 33 km.
Our in-depth reporting can be followed by this link (another link is present on the frontpage)

Screen Shot 2015-11-22 at 14.55.54

Update November 22, 08:38 UTC (Armand) : TUNGURAHUA, Ecuador
Volcano monitors say about a dozen farming villages have been dusted with ash due to bursts from Ecuador's Tungurahua volcano.
The Geophysics Institute says clouds of gas and ash have risen as high as 2,500 meters above the crater, producing "a strong fall of dark grey ash" over some settlements.
Thursday's report comes a day after authorities imposed new precautionary measures around the volcano, which has been increasingly restive.
The picture below has been taken by myself on November 16 while flying from Quito to Guayaquil. The volcano had started to show increased activity already then.

Screen Shot 2015-11-22 at 09.46.17

Screen Shot 2015-11-22 at 09.53.01

Spectrogram Tungurahua volcano RETU station on November 21

Update November 22, 00:05 UTC (Armand) :


 

Update November 21, 12:04 UTC (Armand) :
Increased activity yesterday morning of the Chilean volcano Copahue

Image via @reddeemergencia chile

Image via @reddeemergencia chile

Update November 21, 11:25 UTC (Armand) :
Nishinoshima volcano's #eruption on 11/17/15 which had been erupting since Nov. 2013 - Photo by Japan Coast Guard
Pictures via @jaimessincioco - Tweet via René Goad @renvolcanoman

Screen Shot 2015-11-21 at 12.21.05

Screen Shot 2015-11-21 at 12.21.18

Update November 21, 09:43 UTC (Armand) :


 

Update November 20, 23:09 UTC (Armand) :
SHISHALDIN Volcano, Alaska aviation color code decreased from Orange to Yellow and alert level from Watch to Advisory.
No anomalous activity at Shishaldin has been observed in satellite data since weakly elevated surface temperatures were detected on October 16. Low-amplitude seismic tremor continues but is not considered to be indicative of an active eruption. AVO is therefore downgrading the status of Shishaldin volcano from aviation color code ORANGE to YELLOW and from volcano alert level WATCH to ADVISORY. AVO will continue to monitor Shishaldin with satellite, seismic and infrasound (pressure sensor) data.

Eventual ash fall forecast

Eventual ash fall forecast

Update November 20, 12:23 UTC (Armand) :
CultureVolcan shows in his today's overview the below video from the Erta Ale crater and surroundings (Ethiopia). A really nice video. The Erta Ale area video part starts at 3'

Update November 20, 09:32 UTC (Armand) : My Ecuador - Galapagos tour from last week. The island of Santiago is a perfect example of a massive Pahoehoe lava eruption. Although the lava looks like the eruption occurred only 3 months ago (an almost total lack of even the smallest vegetation), these lava fields are at least 110 years old.

Screen Shot 2015-11-20 at 10.39.31

Screen Shot 2015-11-20 at 10.39.47

Update November 20, 09:32 UTC :


 

Volcano Activity for the week of November 11 until November 17 (Armand, November 19)
The Weekly Volcanic Activity Report is a cooperative project between the Smithsonian's Global Volcanism Program and the US Geological Survey's Volcano Hazards Program.

Screen Shot 2015-11-19 at 11.57.34

Fuego | Guatemala
INSIVUMEH reported that during 11-12 and 14-16 November explosions at Fuego generated ash plumes that rose 450-750 m above the crater and drifted WSW. Ashfall was reported in Panimache I and II (8 km SW), Morelia (9 km SW), Santa Sofía (12 km SW), El Porvenir (8 km ENE), Sangre de Cristo, and in the municipalities of San Pedro Yepocapa, Rochela, Ceilán, San Andrés Osuna, and El Zapote. Lava flows remained active in the Las Lajas and El Jute (SE) drainages.

Rinjani | Lombok Island (Indonesia)
Based on observations conducted at a volcano observation post in the village of Lawang Sembalun, PVMBG reported that during 11-13 November dense white-and-gray plumes rose as high as 2.6 km above Rinjani’s Barujari crater. Elevated levels of continuous tremor were detected by the seismic network, although RSAM values showed a declining trend. Strombolian activity continued to feed N-to-E-trending lava flows. A lava flow entered lake Segara Anak, causing an increase in the lake level and increased flow in the Kokok Putih river. The Alert Level remained at 2 (on a scale of 1-4); visitors and residents were warned not to approach the crater within a 3-km radius. BNPB reported on 14 November that ash plumes rose as high as 1.6 km and drifted WSW; ashfall was reported in some villages downwind. The report also noted that flight conditions were normal at the airport. Based on satellite observations, the Darwin VAAC reported that during 15-17 November ash plumes rose to altitudes of 3.7-4.3 km (12,000-14,000 ft) a.s.l. and drifted as far as 240 km NW, WNW, W, and SW.


Rinjani video recorded on October 26

Yasur | Vanuatu
On 13 November, the Vanuatu Geohazards Observatory stated that activity at Yasur had increased with more intense explosions. The Alert Level was raised to 2 (on a scale of 0-4). VGO reminded residents and tourists that hazardous areas were near and around the volcanic crater, and that volcanic ash and gas could reach areas impacted by trade winds.


 

Update November 18 (Armand): Just back from a Galapagos and Ecuador tour.
A picture which i have taken on November 4 of the Tungurahua volcano who still has regular ash explosions. In between the ash explosions the volcano shows a mainly steam plume.

Screen Shot 2015-11-18 at 21.28.37

Update November 18 (Armand): Just back from a Galapagos and Ecuador tour.
The day before yesterday i was able to use a couple of clear hours to take a picture of a strongly steaming Cotopaxi volcano. The picture was taken from the 9th floor of the Marriott Hotel in Quito

Screen Shot 2015-11-18 at 21.16.31


 

Volcano Activity for the week of November 4 until November 10 (Armand November 17)
The Weekly Volcanic Activity Report is a cooperative project between the Smithsonian's Global Volcanism Program and the US Geological Survey's Volcano Hazards Program.

Screen Shot 2015-11-18 at 21.08.03
Fuego | Guatemala
INSIVUMEH reported that during 5-6 and 8-10 November explosions at Fuego generated ash plumes that rose 550-750 m above the crater and drifted 10-15 km S and SE. Ashfall was reported in Panimache I and II (8 km SW), Morelia (9 km SW), Santa Sofía (12 km SW), and El Porvenir (8 km ENE), and Sangre de Cristo. Incandescent material was ejected 200 m high and produced avalanches that descended the Santa Teresa, Trinidad, and Las Lajas (S) drainages. During 8-9 November a new lava flow traveled 1.5 km down the Las Lajas and El Jute (SE) drainages. By 10 November the lava flow was 2.5 km long. Incandescent material was ejected 300 m high, and ashfall was reported in Panimache I and II, Morelia, Santa Sofia, El Porvenir, Sangre de Cristo and the municipality of San Pedro Yepocapa. Later that evening pyroclastic flows descended the E flank. Ash fell in multiple areas including Morelia, Santa Sofía, el Porvenir, Panimache II, Sangre de Cristo, San Pedro Yepocapa, Rochela, Ceilán, San Andrés Osuna, El Zapote, Siquinala, Santa Lucia Cotzumalguapa, Mazatenango, Patulul, and Cocales.

Rinjani | Lombok Island (Indonesia)
PVMBG reported that after an eruption occurred at Rinjani on 25 October tremor amplitude increased, and was continuous from 1109 on 2 November through 0600 on 5 November. During 25-31 October dense white emissions rose 900 m above Barujari Crater. During 1-5 November dense gray-to-brown ash plumes rose as high as 1.6 km above the crater. The webcam showed incandescent material being ejected from the crater on 4 November. The Alert Level remained at 2 (on a scale of 1-4); visitors and residents were warned not to approach the crater within a 3-km radius. Based on a 9-November PVMBG notice, BNPB reported that a lava flow had traveled 1 km E of the crater, towards the Koko Putih River. Incandescent material was ejected 750 m above the crater and ash plumes rose 2.5 km. Based on satellite observations and pilot observations, the Darwin VAAC reported that during 4-10 November ash plumes rose to altitudes of 4.3-6.1 km (14,000-20,000 ft) a.s.l. and drifted as far as 740 km NW, W, SW, and S.
According to news articles, Ngurah Rai International Airport in Bali reopened on 9 November but some international flights had remained canceled; the airport had closed the evening before. The closure of Lombok International Airport had been extended until 10 November.


Lascar volcano, Chile, 30 October, 13:50 UTC
A small eruption occurred at Lascar volcano this morning at 9:32 (local time). SERNAGEOMIN observed the eruption through the webcam producing a light grey plume to a height of 2500 m. The volcanic alert level has been raised to YELLOW.

Bulusan, Philippines, 28 October, 12:25 UTC
PHIVOLCS reports an increase in seismic activity at Bulusan volcano yesterday. From 5 am to noon (October 27) 38 volcanic earthquakes were recorded - a number well above the background seimicity. Am update released today at 8 am (local time) reported 14 earthquakes in the past 24 hours. All other monitoring parameters remain 'unremarkable', although precise leveling surveys taken September 1-6 show a slight inflation relative to July measurements. GPS data have indicated a slight deflation trend since August. Thick cloud cover has prevented visual observations. This increase in seismicity may be a precursor to phreatic (steam) eruptions at the currently active W-NW, NW, SE, or summit vents, based on past behavior. Bulusan volcano is on Alert Level 1, with a permanent danger zone established in a 4 km radius around the volcano where the public is strictly prohibited from entering.

Shiveluch volcano, Kamchatka, 28 October, 12:25 UTC
KVERT reports that the active dome of Shiveluch volcano produced a hot avalanche (small block and ash flow) today, accompanied by a 4 km above sea level ash plume that drifted to the north-west.

Dome activity at Shiveluch volcano today. Courtesy of Yu. Demyanchuk, IVS FEB RAS, KVERT.

Dome activity at Shiveluch volcano today. Courtesy of Yu. Demyanchuk, IVS FEB RAS, KVERT.


Cotopaxi, Ecuador, 21 October, 14:30 UTC
IGEPN released an eruptive activity report on Cotopaxi volcano yesterday with the following information.
Activity this past week has been characterized by sporadic seismic activity associated with gas emissions (water, gas, and some ash). Volcano-tectonic (VT) earthquakes have been recorded on average 50 events per day, with a magnitude generally less than 1, with events larger than 2.7 recorded on October 14. Most VT activity is located less than 12 km below the crater. Additionally, some hybrid and very low frequency events (VLP) have been recorded.

Real Time Web Analytics