Volcano news by volcanologist Janine Krippner (Archive Nr. 1)

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Kilauea volcano, USA, April 27, 13:30 UTC
The lava lake in Kilauea's Halema'uma'u Overlook crater continues to rise, now only a few meters below the crater rim after rising 8 m over Saturday-Sunday.
See the webcams here.

Spattering on the eastern corner of the lava lake. Image posted yesterday by HVO, USGS.

Spattering on the eastern corner of the lava lake. Image posted yesterday by HVO, USGS.

The lava lake 3 m (10 ft) below the crater rim yesterday morning. Courtesy of HVO, USGS.

The lava lake 3 m (10 ft) below the crater rim yesterday morning. Courtesy of HVO, USGS.

Different view of the lava lake taken yesterday morning by HVO, USGS.

Different view of the lava lake taken yesterday morning by HVO, USGS.

HVO webcam image captured this morning from Halemaʻumaʻu Overlook.

HVO webcam image captured this morning from Halemaʻumaʻu Overlook.

Thermal webcam image from Halemaʻumaʻu Overlook taken this morning. Temperature scale in in degrees Celsius. courtesy of HVO, USGS.

Thermal webcam image from Halemaʻumaʻu Overlook taken this morning. Temperature scale in in degrees Celsius. courtesy of HVO, USGS.

Calbuco volcano, Chile, April 27, 00:40 UTC
Calbuco has continued producing ash for a fourth day with a plume less than 2 km height and seismicity has remained low according to SERNAGEOMIN. Videos and photos are being posted of local residents who have lost their homes, fields, animals, bees, and fish. Some farmers still do not have food or clean water for their animals. The map below was released today showing areas at risk of secondary lahars - flows of remobilized sediment due to rainfall that is expected over the coming weeks. The areas most at risk are those with volcanic material accumulated to thicknesses over 30 cm, and on slopes steeper than 35º. If lahars were to be produced danger zones will be 200 m either side of the channels in the case of heavy rainfall. Residents are working to remove the heavy ash and lapilli (rock fragments 2 to 64 mm in diameter) from buildings to prevent structural collapse, especially before rains make the material much heavier.

Map showing areas at risk of secondary lahars courtesy of SERNAGEOMIN.

Map showing areas at risk of secondary lahars courtesy of SERNAGEOMIN.

 


Calbuco volcano, Chile, April 26, 02:05 UTC
SERNAGEOMIN and ONEMI report that the Calbuco eruptions have emitted 210 million cubic meters of material so far, with each cubic meter of volcanic material weighing about 1 ton. This includes 40 million cubic meters during the initial eruptive episode and 170 million cubic meters in the second eruptive pulse that began after midnight. The fine ash that is depositing away from the volcano contains fine cristobalite (a form of silica) that is damaging when inhaled, the use of face masks to prevent health issues is recommended. The 20 km exclusion zone is maintained and Red Alert remains with ash plumes not exceeding 2 km above the crater still being produced. Evacuation plans for animals in the exclusion zone are being put into effect when conditions allow and army trucks of food are being delivered to those animals (below). The risk of lahars or remobilization of volcanic debris remains.

Kilauea volcano, USA, April 26, 01:45 UTC
The Hawaii Volcano Observatory (HVO, USGS) reports that the summit of Kilauea continues to inflate and the level of the lava lake continues to rise, with a surface now within 12 m of the Overlook crater rim. Crater wall collapses have triggered explosions around 2 am local time throwing hot spatter onto the crater rim. The lava lake can be seen through the webcam with the latest image below.

Halemaʻumaʻu Overlook webcam image taken 15:26 local time. Courtesy of HVO, USGS.

Halemaʻumaʻu Overlook webcam image taken 15:26 local time. Courtesy of HVO, USGS.

Photo taken on 24 April from the Overlook crater rim. Courtesy of HVO, USGS.

Photo taken on 24 April from the Overlook crater rim. Courtesy of HVO, USGS.

Area of spattering along the active lava lake margin. Courtesy of HVO, USGS.

Area of spattering along the active lava lake margin. Courtesy of HVO, USGS.

Calbuco volcano, Chile, April 25, 14:00 UTC
Sam Cristoforetti posted this photo from her twitter account @AstroSamantha a few hours ago saying "A dark shadow on the horizon caught my attention... looks like the massive ash cloud of volcano #Calbuco in #Chile" taken from the International Space Station.

Image taken from the International Space Station by Sam Cristoforetti.

Image taken from the International Space Station by Sam Cristoforetti.

Calbuco volcano, Chile, April 25, 00:05 UTC
ONEMI Los Lagos has released evacuation figures in the Lakes Region around Calbuco volcano with a total of 6,514 people evacuated from the restricted zone. The restricted zone remains with a 20 km radius from the volcano. Lahars can travel the 20 km from the volcano and 200 m either side of these channels are considered to be danger zones. The Alert Level remains at Red.
The eruption was still visible on the live feed as the sun was setting a few hours ago.

Eruption plume visible at Calbuco volcano as the sun was setting. Link to live feed provided earlier.

Eruption plume visible at Calbuco volcano as the sun was setting. Link to live feed provided in the 15:55 update.

NASA Earth Observatory MODIS satellite image of the ash plume visible around midday today.

NASA Earth Observatory MODIS satellite image of the ash plume visible around midday today.

 


Calbuco volcano, Chile, April 24, 17:10 UTC
SERNAGEOMIN has released an update on the situation of Calbuco volcano: The current plume is no more than 2 km high dispersing to the east-southeast and is accompanied by continuous tremor related to magmatic fluid movement within the system. This period of increased activity began last night at 23:30 local time (23 April). The activity over the past few days suggests that the volcano has entered an unstable phase of continuous activity and this could lead to lava flow or dome generation. The most affected area is around the volcanic massif and in valleys and channels where pyroclastic density current and lahars have traveled. It is recommended that the 20 km restriction zone remains in place and the Alert level remains on Red.

Calbuco volcano, Chile, April 24, 15:55 UTC
Multiple plumes can be seen emitting from Calbuco volcano, which now has 6 vents.
Watch the live feed here.

Mutiple plumes rising from the summit of Calbuco volcano. See this live feed with the link provided above.

Multiple plumes rising from the summit of Calbuco volcano. See this live feed with the link provided above.

Calbuco volcano, Chile, April 24, 11:55 UTC
Ash plumes are visible on the webcam this morning:

Ash plume visible on the SERNAGEOMIN webcam, taken around 11:30 UTC today.

Ash plume visible on the SERNAGEOMIN webcam, taken around 11:30 UTC today.

Nicarnica Aviation has posted the below images of the SO2 plume emitting from the Calbuco vent between 1:30 and 2:00 am local time on 23 April taken 29 km from the volcano. These images have not been corrected for ash which is likely to have an impact on the SO2 data retrieval. Click on below image for full GIF.

SO2 measurements taken by the SERNAGEOMIN OVDAS, courtesy of Nicarnica Aviation.

SO2 measurements taken by the SERNAGEOMIN OVDAS, courtesy of Nicarnica Aviation.

The below video was taken by a tourist in the area, capturing the first moments of the eruption at around 21 seconds:

Kilauea volcano, USA, April 24, 11:45 UTC
The USGS Hawaiian Volcano Observatory (HVO) reports that breakouts on the June 27th lava flow remain active, burning forest at the tip of a lava flow 8 km from the vent. The lava lake in Halema'uma'u crater has reached a new high level after rising over the past few days. The surface is now 20 m (66 feet) below the Overlook crater rim, high enough for spatter fragments to reach the rim.

 Halemaʻumaʻu crater lava lake. Courtesy of HVO, USGS.

Halemaʻumaʻu crater lava lake. Courtesy of HVO, USGS.

Closer view of the  Halemaʻumaʻu crater lava lake. Courtesy of HVO, USGS.

Closer view of the Halemaʻumaʻu crater lava lake. Courtesy of HVO, USGS.

Spatter fragments are reaching the crater rim,  Halemaʻumaʻu crater lava lake. Courtesy of HVO, USGS.

Spatter fragments are reaching the crater rim, Halemaʻumaʻu crater lava lake. Courtesy of HVO, USGS.

Calbuco volcano, Chile, April 24, 00:25 UTC
SERNAGEOMIN has released a report on the Calbuco volcano eruptions with the following information:
During the eruption activity period starting yesterday at 18:04 local time, two sub-Plinian eruptions have occurred. The first generated an eruption column reaching over 15 km. Seismic activity that accompanied the first eruption consisted of continuous low frequency tremor associated with fluid movement in the volcano.
The second eruption was of longer duration, lasting 6 hours and producing an ash column reaching greater than 15 km, with ash from the plumes reaching a distance of 300 km. This second pulse was accompanied by a continuous low-frequency tremor relating mainly to rocks fracturing at the surface. 1620 VT earthquakes have been recorded over the two eruption episodes.
Pyroclastic flows reached a maximum distance of 7 km and channelized lahars traveled nearly 15 km from the volcano. Thick pumiceous pyroclastic fall deposits accumulated in the Region of Los Lagos and finer ash deposits in the regions of Los Rios and Araucania, reaching the Argentina territory NE of the volcano.
A helicopter overflight recorded at least 6 active craters located on the former dome and a high thermal anomaly has been noted.
It is highly probable that the system can evolve into new eruptive episodes similar to those in the past 24 hours and a 20 km restricted area remains around the volcano.

Updated hazard map from the latest SERNAGEOMIN report.

Updated hazard map from the latest SERNAGEOMIN report.


 

Calbuco volcano, Chile, April 23, 20:20 UTC

Calbuco volcano, Chile, April 23, 16:45
The first eruption pulse declined last night. Calbuco volcano experienced a lull in activity until a second pulse began around 1 am (local time) after an increase in seismic activity. Pyroclastic density current (pyroclastic flow) material was confirmed before this second pulse. The second pulse which was more energetic than the first, ended at 8:40 am local time but the volcano remains on Red Alert.
The updated hazard map below shows the 20 km exclusion zone. Images of ash covering roads are being posted on twitter and pets that were left behind are being checked on by police. Locals are advised that breathing in the ash is a hazard and it is best to stay inside at this time. and the governor is distributing 46,000 masks to help reduce adverse health affects from inhaling the ash. Evacuation and safety zone maps were recently updated and so far there have been no reports of casualties.
The video below shows timelapse footage of the eruption during the night.

Hazard map for area surrounding Calbuco volcano. Courtesy of SERNAGEOMIN.

Hazard map for area surrounding Calbuco volcano. Courtesy of SERNAGEOMIN.


Calbuco volcano, Chile, April 22, 23:15 UTC
Footage of the ash column and umbrella ash cloud:

 

Calbuco volcano, Chile, April 22, 22:15 UTC
A restricted area with a 20 km radius has been set around the volcano. Activity began today with a VT seismic swarm (associated with rock fracturing below the volcano) at 15:11 local time. Calbuco volcano was on Green Alert earlier today.

Calbuco volcano, Chile, April 22, 22:00 UTC
Below is an image of the seismograph showing the activity at Calbuco posted by SERNAGEOMIN.

Seismograph image courtesy of SERNAGEOMIN.

Seismograph image courtesy of SERNAGEOMIN.

The latest webcam image:

Taken 22:00 UTC.

Taken 22:00 UTC.

Calbuco volcano, Chile, April 22, 21:30 UTC
An eruption has begun at Calbuco, SERNAGEOMIN reports that the volcano is now on Red Alert

Villarrica volcano, Chile, April 22, 15:30 UTC
SERNAGEOMIN took the following images during an overpass yesterday (21 April). The images show a hot lava lake in the summit crater measured to be 1027°C.

The summit of Villarrica volcano emitting gas. Courtesy of SERNAGEOMIN.

The summit of Villarrica volcano with gas emissions. Courtesy of SERNAGEOMIN.

The crater and lava lake at the summit of Villarrica volcano. Courtesy of SERNAGEOMIN.

The crater and lava lake at the summit of Villarrica volcano. Courtesy of SERNAGEOMIN.

Thermal infrared image of the lava lake at the Villarrica summit with temperatures reaching 1027 degrees Celsius. Courtesy of SERNAGEOMIN.

Thermal infrared image of the lava lake at the Villarrica summit with temperatures reaching 1027 degrees Celsius. Courtesy of SERNAGEOMIN.

Nevado del Ruiz volcano, Colombia, April 22, 15:15 UTC
The Manizales Observatory released a report this morning on an explosion at Nevado del Ruiz. The image below shows the seismograph and increase of seismic activity at the time of the eruption, shown in the photograph to the right.

Explosion at Nevado del Ruiz, courtesy of the Manizales Observatory.

Explosion at Nevado del Ruiz, courtesy of the Manizales Observatory.


Ubinas volcano, Peru, April 17, 17:30 UTC
An eruption at 7:43 am (local time) was recorded by the Scientific Committee of Permanent Monitoring Ubinas. The ash plume reached 2500 m above the base of the crater and dispersed to the east.

Colima volcano, Mexico, April 17, 12:25 UTC
Explosions continue at Colima volcano. A stronger eruption occurred at 3:20 pm (local time) yesterday:

Popocatepetl volcano, Mexico, April 17, 11:45 UTC
CENAPRED has taken an observation flight over the summit of Popocatepetl volcano on April 10 and report that the activity on March 24 and April 5 has emplaced a new dome in the inner crater. The dome has a diameter of 250 m and is 30 m thick. The radial fractures visible in the below photograph show that the central portion of the dome has deflated and collapsed. It is probable that over the next few days to weeks the dome will be destroyed by one or more larger explosions.

Popocatepetl volcano and summit crater. Courtesy of CENAPRED.

Popocatepetl volcano and summit crater. Courtesy of CENAPRED.

Summit crater of Popocatepetl volcano with inner crater where the dome is situated. Courtesy of CENAPRED.

Summit crater of Popocatepetl volcano with inner crater where the dome (darker material) is situated. Courtesy of CENAPRED.

Inner crater containing the new dome at the summit of Popocatepetl volcano. The radial fractures are visible in the darker dome material. Courtesy of CENAPRED.

Inner crater containing the new dome at the summit of Popocatepetl volcano. The radial fractures are visible in the darker dome material. Courtesy of CENAPRED.


Shiveluch volcano, Kamchatka, April 11, 14:05 UTC
KVERT reports an eruption at Shiveluch volcano today that produced an ash plume reaching 5500-6000 m above seal level.

Ash plume at Shiveluch volcano today. Photo courtesy of Yu Demyanchuk.

Ash plume at Shiveluch volcano today. Photo courtesy of Yu Demyanchuk.

An ash eruption at the active dome of Shiveluch volcano. Ash plume at Shiveluch volcano today. Photo courtesy of Yu Demyanchuk, volkstat.ru.

An ash eruption at the active dome of Shiveluch volcano. Ash plume at Shiveluch volcano today. Photo courtesy of Yu Demyanchuk, volkstat.ru.


Ubinas volcano, Peru, April 9, 14:40 UTC
INGEMMET reports two explosions yesterday sending ash to 2500 m above the crater depositing ash on towns to the southeast.

Eruption of Ubinas volcano on 8 April. Courtesy of INGEMMET.

Eruption of Ubinas volcano on 8 April. Courtesy of INGEMMET.


Reventador volcano, Ecuador, April 8, 12:25 UTC
The Instituto Geofisico monitoring cameras show fresh deposits in Reventador volcano. The hot deposits and summit activity are visible on the thermal infrared camera.

GIF taken today from the thermal infrared camera that shows fresh, hot deposits on the flanks of Reventador volcano. Courtesy of the Instituto Geofisico.

GIF taken today from the thermal infrared camera that shows fresh, hot deposits on the flanks of Reventador volcano. Courtesy of the Instituto Geofisico.


Villarrica Volcano, Chile, April 7, 13:10 UTC
SERNAGEOMIN reports continued activity at Villarrica volcano. A 5 km total restriction zone is in place for residents and a 10 km restriction zone is in place for non-residents. Surface activity has included strombolian explosions ejecting ballistics (volcanic material) from the summit lava lake, creating a cone around the crater. Incandescence can be seen at night and intermittent ash emission can be seen on the webcams. The current activity has the potential to rapidly evolve into a more unstable phase and change eruptive behavior.

Incandescence at Villarrica Volcano on April 5. Photo courtesy of SERNAGEOMIN, Twitter.

Incandescence at Villarrica Volcano on April 5. Photo courtesy of SERNAGEOMIN, Twitter.

Thermal image of the Villarrica Volcano summit recording temperatures of 1100 Degrees Celsius on 28 March. Courtesy of SERNAGEOMIN.

Thermal image of the Villarrica Volcano summit recording temperatures of 1100 degrees Celsius on 28 March. Courtesy of SERNAGEOMIN.

Restriction zones around Villarrica Volcano. Courtesy of SERNAGEOMIN.

Restriction zones around Villarrica Volcano. Courtesy of SERNAGEOMIN.

Turrialba Volcano, Costa Rica, April 6, 13:30 UTC
Turrialba volcano produced a minor eruption yesterday. OVSICORI provided the following video:


 

Kilauea Volcano, United States, April 5, 12:45 UTC
The USGS, Hawaii Volcano Observatory (HVO) reports the continuation of active lava breakouts in three areas northeast of Pu'u 'O'o. The following images are of a blue glassy pahoehoe lava flow, with the hot area visible on the right thermal image (white box on left image shows extent of thermal image). The yellow and white areas are the hottest and active areas of the flow and the purple areas are surface crust.

Visible (left) and thermal (right) images of an active area of a breakout. Images courtesy of HVO, USGS.

Visible (left) and thermal (right) images of an active area of a breakout. Images courtesy of HVO, USGS.

A new ~27 m diameter circular collapse pit has formed in the western portion of the Pu'u 'O'o crater of Kilauea. The thermal image below (right) shows two areas of ponded lava ~24 m below the rim of the pit.

Visible (left) and thermal (right) images of the new collapse pit in Pu'u 'O'o crater. Images courtesy of HVO, USGS.

Visible (left) and thermal (right) images of the new collapse pit in Pu'u 'O'o crater. Images courtesy of HVO, USGS.

Villarrica volcano, Chile, April 5, 12:25 UTC
Villarrica volcano remains on Orange alert. Incandescence was visible through the night and ash emission is visible on the SERNAGEOMIN webcams.

Villarrica volcano webcams taken around 12:10 UTC today. Webcam images courtesy of SERNAGEOMIN.

Villarrica volcano webcams taken around 12:10 UTC today. Webcam images courtesy of SERNAGEOMIN.


 

Sinabung volcano, Indonesia, April 3, 12:40 UTC
The photographs below were taken by Mbah Lëwå of the summit of Sinabung volcano. The first is of the summit dome on 30 March before the eruption on 2 April resulted in destruction of the dome and pyroclastic flows out to 3.5 km from the summit. The second image was taken today, showing the absence of the lava dome.

The summit of Sinabung volcano before the 2 April activity. Photo by Mbah Lëwå, Facebook.

The summit of Sinabung volcano before the 2 April activity. Photo by Mbah Lëwå, Facebook.

The summit of Sinabung volcano today.  Photo by Mbah Lëwå, Facebook.

The summit of Sinabung volcano today. Photo by Mbah Lëwå, Facebook.


 

Sinabung volcano, Indonesia, April 2, 19:55 UTC
Edit - Reports are coming in of evacuations around Sinabung volcano after the eruption yesterday that produced pyroclastic flows up to 3.5 km from the volcano and ash plumes up to 2 km. Villages near Sinabung are preparing for evacuations and have been encouraged to wear face masks to protect from ash inhalation. Local communities and tourists are not to enter a 3 km radius around Sinabung, and no activities are to be carried out within a 5 km radius to the south of the southeast sector where deposits are directed. Rainfall is also producing an additional hazard around the volcano.

Eruption at Sinabung volcano, photo taken yesterday by Mbah Lëwå, Facebook.

Eruption at Sinabung volcano, photo taken yesterday by Mbah Lëwå, Facebook.

Colima volcano, Mexico, April 2, 18:55 UTC
Ash explosions continue at Colima, the below images were captured on the webcam today, showing a vulcanian ash plume and minor pyroclastic flows.

Karymsky volcano, Kamchatka, April 2, 18:40 UTC
KVERT reports the continuation of moderate explosive eruptions with ash plumes reaching 6 km above sea level that could occur at any time. A team of volcanologists traveled to Karymsky volcano over 24-25 March for observation and sampling. The following photos were released on volkstat.ru.

Photo courtesy of Yashchuk V.

Ash plume at Karymsky volcano. Photo courtesy of V. Yashchuk.

Photo courtesy of Yashchuk V.

Ash plume at Karymsky volcano. Photo courtesy of V. Yashchuk.

Photo courtesy of V. Yashchuk.

Ash fallout from the eruption plume at Karymsky volcano. Photo courtesy of V. Yashchuk.

Sinabung volcano, Indonesia, April 2, 15:45 UTC
There are reports of pyroclastic flows reaching 4 km from the dome, igniting fires around the village of Sibintun. There are no current reports of any injuries or casualties and I am unaware of how many were in the area at the time. Updates will be provided when more news comes through.

Pyroclastic flow on 1 April. Photo by Mbah Lëwå, Facebook.

Pyroclastic flow on 1 April. Photo by Mbah Lëwå, Facebook.

Pyroclastic flow on 1 April. Photo by Mbah Lëwå, Facebook.

Pyroclastic flow on 1 April. Photo by Mbah Lëwå, Facebook.