On this page : Fogo (Cabo Verde), Nevado del Ruiz (Colombia), Aso (Japan), Chiles and Cerro Negro (Colombia), Copahue (Chile),Ubinas and Sabancaya (Peru), Bardarbunga (Iceland), El Hierro (Canary Islands), Nishinoshima (Japan), Shishaldin (Alaska), Ruapehu (New Zealand), Kilauea (Hawaii), Stromboli (Italy), Santiaguito (Guatemala), Kuril Islands volcanoes (Russia)
Click here to read the latest part of our report
This report is compiled out of many information sources.
For our El Hierro volcano report : Click here
Fogo, Cabo Verde update December 4, 17:30 UTC (Armand)
@CultureVolcan reports that the Fogo eruption has strongly decreased and that the destructive flow has (maybe temporarily) stopped. This means, at least for now, great news for the Portela inhabitants who's houses have survived the current flow. The eruption at Fogo is Strombolian, which means short lived strong eruptions.
Fogo, Cabo Verde December 4, 12:11 UTC (Janine)
Aso, Japan December 4, 11:10 UTC (Janine)
Spectacular #strombolian activity at #Aso #volcano #Japan Photo by Tomohiro Yamashita pic.twitter.com/03jSEjjpDo
— Roberto C. Lopez (@Bromotengger) December 4, 2014
Nevado del Ruiz, Colombia December 4, 10:36 UTC (Janine)
The Observatorio Vulcanologico Y Sismologico de Manizales reports a significant increase in VT earthquakes associated with rock fracturing began on December 3 at 16:50 (local time) northeast of the volcano near the Arenas crater. An earthquake with a maximum magnitude of 3.4 at a depth of 3.3 km was felt in the proximal area. An increase in the VT seismic activity began on December 2, 01:30 local time.
Fogo, Cabo Verde update December 4, 10:36 UTC (Armand)
That´s the way the #Fogo #volcano #eruption looks as an IR image (pre-processed) (Source Involcan, Canary Islands)
Image courtesy and copyright Involcan
Chiles - Cerro Negro, Colombia update December 4, 09:25 UTC (Armand)
The alert level of the volcano has been decreased to Yellow. Seismicity is still important but decreased considerably
Copahue volcano, Chile update December 4, 09:25 UTC (Armand)
The activity of the Chilean volcano did become magmatic
Fogo, Cabo Verde update December 4, 09:19 UTC (Armand)
Below a map from INGT showing the situation of the lava flows along the Fogo volcano as it was yesterday morning in the Portela area
Click on this image to watch it in the original size
#volcan #volcano #Fogo cartographie de la coulée le 01/12;the lava flow on 01/12 mapped. Par/by @CopernicusEMS pic.twitter.com/bykbrKPyX8
— CultureVolcan (@CultureVolcan) December 3, 2014
Aso, Japan December 4, 3:46 UTC (Janine)
MODIS (Moderate Resolution Imaging Spectroradiometer sensor on NASA's Aqua satellite) image of an ash plume from Aso volcano's Naka-Dake crater traveling to the southeast on November 29. Image courtesy of NASA Earth Observatory.
Image courtesy of NASA Earth Observatory, acquired 29 November.
Ubinas, Peru December 4, 03:15 UTC (Janine)
Fumerolic activity has significantly decreased during the past week and seismic activity has slightly increased. A low amount of VT earthquakes associated with the fracturing of rock have been recorded. LP earthquakes associated with magmatic fluid movement has increased, peaking at 310 events on November 27 - the highest recorded in 3 months. No hybrid earthquakes have been recorded since the last explosion on November 23.
Read the full report here
Sabancaya, Peru December 4, 03:15 UTC (Janine)
Seismic activity related to rock fracturing and the movement of fluids has increased slightly during the past week. VT earthquakes have increased from an average of 38 to 58 per day located between 6-15 km north and northeast of the volcano. Three VT earthquakes were recorded with local magnitude between 2.9 and 3.1 at 8 km depth. LP earthquakes have averaged 15 per day. Hybrid events associated with magma ascent averaged 6 per day in the past week. Fumerolic activity continues but has decreased with steam rising to over 1,400 m.
Read the full report here
Bárðarbunga, Iceland update December 4, 02:11 UTC (Janine)
The Scientific Advisory Board reviewed the Holuhruan eruption data and developments today.
The lava field has reached 76 km² in size with a recent volume estimate of 1 km³ (with an uncertainty of 0.3 km³) - the largest lava field on the planet since the Iceland Laki eruption in 1783-1784. If the current unrest continues the eruption is expected to proceed for at least a few months although the situation may change.
The Holuhraun seismic unrest is among the largest ever recorded at a single volcano globally with a continuation of strong seismicity since August when the progression of the dyke preceded the beginning of the eruption. A peak in seismic activity occurred in early September coinciding with a peak lava flow rate of about 200 m³ per second, after which both have been in decline. The flow rate for November is estimated to have been under 100 m³ per second. Subsidence of the Bárðarbunga caldera began at a rate around 80 cm per day in August and has since slowed to around 25 cm per day, resulting in a subsidence depth of about 50 m in the center of the bowl-like depression.
Ground deformation studies indicate a magma volume in the dyke of approximately 0.5 km³ that was already in place before the eruption commenced. The amount of lava effusion is large and steady, with geochemistry indicating a primitive basaltic composition typical of the Bárðarbunga system, and a stabilization depth of 9-20 km.
Due to the size and duration of the eruption the gas pollution is the first to impact Iceland in 150 years. The average flux of sulfur dioxide (SO2) in the first month was estimated to have been 400 kg per second, and has been measured to be as high as 1300 kg per second. The SO2 flux is expected to decline along with an eventual decline in lava effusion.
Access the full report here
We were sent these amazing photos of the #volcano in #holuhraun #Bardarbunga pic.twitter.com/uhcXL8zWHZ
— Air Iceland (@airiceland) December 3, 2014
Fogo, Cabo Verde update December 3, 18:10 UTC (Armand)
Involcan (Canary Islands) video of IR measuring of the erupting lava
El Hierro, Canary Islands update December 3 17:53 UTC (Armand)
Seismicity almost stopped the second part of November. All earthquakes since October 6 here
Images courtesy and copyright IGN Spain
Fogo, Cabo Verde update December 3, 15:52 UTC (Armand)
It must be tragic to watch your house be engulfed by the slowly moving magma. So far, all efforts to deviate an AA lava flow have been unsuccessful. The lava makes concrete crumble like paper.
Image courtesy and copyright Involcan, Canary Islands
Nishinoshima, Japan December 3, 12:33 UTC (Janine - @JanineKrippner)
Operational Land Imager (OLI) Landsat 8 image acquired on November 25 shows the now 1-year-old Nishinoshima volcanic island that has grown to 1.89 square km (0.73 square miles) with the highest elevation point at 100 m (328 feet) above sea level. A faint grey plume is visible to the north of the island. Image courtesy of the NASA Earth Observatory.
Nishinoshima volcano OLI Landsat 8 image, acquired November 25.
Shishaldin, Alaska December 3, 12:23 UTC (Janine)
The Alaska Volcano Observatory (AVO) reports continued elevated seismic activity. A low-level lava eruption is probably still occurring although visual satellite confirmation is prevented by cloud cover.
Fogo, Cabo Verde update December 3, 12:22 UTC (Armand)
Beautiful image made by the Involcan scientists - image courtesy and copyright Involcan, Canary Islands
Ruapehu, New Zealand December 3, 12:23 UTC (Janine)
The Ruapehu crater lake is currently in a cooling trend and has reached 15ºC, the lowest temperature recorded since April 2010. This is part of a regular heating and cooling cycle that sees temperatures below 22ºC 25% of the time. Heat flow and chemistry data show that the vents at the base of the lake are not sealed.
Read full article here
Bárðarbunga, Iceland update December 3, 12:02 UTC (Janine)
The Icelandic Met Office has developed an online interactive gas dispersal model that displays calculations of SO2 emissions at the ground level for each hour ranging from hazardous (maroon) to good (green). SO2 gas inhalation can result in serious respiratory issues and this tool allows individuals to see the hazard level in their area and take recommended actions.
Access the map here
Holuhraun eruption SO2 gas dispersal map
Hawaii Pahoa, Puʻu ʻŌʻō update December 3, 12:02 UTC (Janine)
The new lava lobe is advancing and widening, now 4.3 km (2.7 miles) from Highway 130. The below WorldView 2 satellite, sensor image (acquired December 1) shows the active flow front moving to the west of the older, now inactive, flow. A faint blow/grey smoke plume is visible due to burning vegetation.
Read full article here
WorldView-2 image of the June 27 lava flow
https://twitter.com/Bromotengger/status/540109618165592064
Hawaii Pahoa, Puʻu ʻŌʻō update December 2, 19:23 UTC
The new leading edge of the June 27 lava flow is receiving a large volume of lava resulting in the advancement rate of ~400 meters (1/4 mile) per day. At this rate, and along the current flow path to the north-northeast, the flow front could reach Pahoa as soon as December 12. The flow could possibly break off to a second line of steepest descent to head towards Ainaloa, or head down both paths of steepest descent. It is too early to tell at this point.
There is no immediate threat to the local communities.
Read the full article here
Fogo, Cabo Verde update December 2, 17:35 UTC (Armand)
The lava flow did not spare the school, the hotel and many houses.
Today being the worst of the 10 ten days from the start of the eruption. So far 57 houses (37 today only) were destroyed, 51 tanks and about 30 hectares of land have been consumed by the lava.
Bárðarbunga, Iceland update December 2, 17:23 UTC (Armand)
NASA picture of the Bardarbunga, Holuhraun eruption. The new outbreak on the north side has increased 450 meter towards NNE since 30.11.2014!
Image courtesy Nasa
A new volunteer reporter for this volcano page
Janine Krippner is her name. She is following up volcanoes all over the world which means that she will be a grace for our readers. People active on Twitter (tweep name @janinekrippner) may known here for some time as she actively tweets about whatever happens in the volcano world. Her own description on twitter is as follows :
"Kiwi volcanologist, remote sensor, & PhD researcher crazy about volcanoes! Studying pyroclastic flows & lahars on Shiveluch & Merapi - University of Pittsburgh" On behalf of our readers we wish Janine a great time and interaction on Earthquake-report.com.
Fogo, Cabo Verde update December 2, 14:48 UTC (Armand)
ESA Radar images from the Sentinel-1A satellite are helping to monitor ground movements of the recently erupted Fogo volcano. Located on Cape Verde’s Fogo island, the volcano erupted on 23 November for the first time in 19 years and has been active ever since. Lava flows are threatening nearby villages, and local residents have been evacuated. Radar scans from the Sentinel-1A satellite are being used to study the volcano. The image above – an ‘interferogram’ – is a combination of two radar images from 3 November and 27 November, before and during the eruption. Deformation on the ground causes changes in radar signals that appear as the rainbow-coloured patterns.
Read the full article here
Important Fogo, Cabo Verde update December 2, 12:43 UTC (Armand)
Dramatic scenes this morning as more and more houses are eaten up by the cruel AA lava flow. The video below has been captured only a few minutes ago.
For your information
We have archived the November 23 to November 28 items. Links to all archived parts can be found at the bottom of this page + here for the latest part
Nevado del Ruiz, Colombia update December 2, 11:14 UTC (Janine)
Nevado del Ruiz volcano (Colombia) time series videos of activity showing small gas plumes. Seismic activity has been recently increasing due to fluid movement within the volcanic system.
Video below posted on November 29 by the Colombian Geological Survey Through The volcanological And Seismological Observatory Manizales.
Click on this picture to start the short video
Hawaii Pahoa, Puʻu ʻŌʻō update December 2, 11:01 UTC (@JanineKrippner)
The new lava lobe of the June 27 lava flow is moving approximately 400 m (400 yards) per day and is following a new flow path. The lobe is forecasted to flow towards the intersection of Pāhoa Village Road and Highway 130.
Read the full article here
Comparison of photograph and thermal image of the new lava lobe - Click on the images to enlarge
Photo taken on December 1, courtesy USGS HVO showing current active flow front - Click on the image to enlarge
Fogo, Cabo Verde update December 2, 10:48 UTC (Janine)
MODIS (on the Aqua satellite) image of Fogo volcano, Cape Verde, showing gas plume (faint blue-grey streak) acquired on Nov 29.
Image courtesy of NASA Earth Observatory
Fogo, Cabo Verde Update December 2, 10:29 UTC (Armand)
When Pico do Fogo erupted on 23 November the first indication from a satellite came from SEVIRI on Meteosat-10 at 11:30 UTC. SO2 was detected from SEVIRI, and also AIRS on NASA's Aqua satellite, with an initial estimate of around 14 kilotonne (kt).
Read the full article here
Image courtesy and copyright Eumetsat
Hawaii Pahoa, Puʻu ʻŌʻō update December 2, 09:38 UTC (Armand)
USGS Hawaiian Volcano Observatory (HVO) scientists conducted an overflight at midday on Monday, mapping and observing the entire length of the June 27th lava flow field. Since the last overflight on November 24, a narrow finger has broken away from the west edge of the flow field and moved to the north by about 2.8 km (1.7 mi), which is an average advance rate of 400 meters/day (440 yards/day). The finger branches off at a point downslope of the crack system where the older flow makes a bend from the north to the northeast. Along its length, the width of the active finger varies from 30 meters (33 yards) to 180 meters (200 yards). The total length of the flow, between Puʻu ʻŌʻō and the front of the new finger, is 18.3 km (11.4 mi) as measured along the flow axis.
The new finger is following a different steepest-descent path than the previously active flow lobe. The new forecast path takes the flow towards the intersection of Pāhoa Village Road and Highway 130, in the vicinity of the Pahoa Marketplace. The flow is currently about 4.6 km (2.9 miles) upslope of the intersection as measured along a straight line. The flow is approaching an area of gentler topography, however, where two steepest-descent paths nearly converge. The ultimate flow path is therefore difficult to forecast while the activity remains upslope of this point.
During the overflight, HVO scientists were also able to measure the cross-sectional area of the lava stream within the tube near Puʻu ʻŌʻō. Their result of 2.0 square meters (2.4 square yards) is a 25% reduction in area compared to last week. A smaller lava-stream cross section is consistent with less lava flowing through the tube due to the current summit deflation, which has been ongoing since Saturday morning.
Based on the gentler topography that the flow is approaching and the decrease in cross-sectional area of the lava stream within the tube, it is likely that the advance rate of the narrow finger will slow in the coming days.
In addition to the narrow finger, weak activity is also present in three areas upslope: 1) surface lava was active where the new finger branches off from the existing flow field; 2) minor surface flows were extending the flow margin to the east at the eastern edge of the crack system; and 3) about 3.5 km (2.2 mi) downslope from Puʻu ʻŌʻō, small amounts of surface lava marked the continued activity of the breakout that started near the Kahaualeʻa cone about two weeks ago. Observations of the stalled flow that extends from the crack system into Pāhoa Village indicate that the lava tube is not being reoccupied, and that this lobe of the flow is effectively inactive.
Click o,n the map to make it bigger
Stromboli, Sicily, Italy (Armand)
Infrequent but strong explosions on the summit vents
#volcan #volcano #Stromboli des explosions peu fréquentes mais parfois assez importantes se produisent au sommet pic.twitter.com/Fa4H0zaZBJ
— CultureVolcan (@CultureVolcan) December 2, 2014
Santiaguito, Guatemala
A column of white fumaroles. Some ash explosions reached 3000 m
Image courtesy Conred Guatemala
Copahue volcano, Chile
#volcan #volcano #Copahue incandescence nocturne et émissions de cendres/glowing by night & ash émissions are ongoing pic.twitter.com/eeG7qLoej4
— CultureVolcan (@CultureVolcan) December 1, 2014
Hawaii Pahoa update December 1, 15:43 UTC
The lowermost breakouts on the flow field continue to advance downslope between the abandoned geothermal well site and Kaohe Homesteads. Webcam imagery of smoke from burning forest suggests that the flow is advancing by several hundred meters per day along the northwest margin of the existing flow, which is consistent with observations from recent Civil Defense overflights. Based on these data, the flow is now within about 4 km (2.5 miles) of Apaʻa Street. An HVO overflight is planned for Monday, weather permitting.
Map below has been published by the County of Hawaii on November 29. Report above dates from November 30
Fogo, Cabo Verde Update December 1, 15:24 UTC
Harsh conditions at the FOGO volcano. The INVOLCAN team is forced to wear masks to protect themselves. Involcan also reports that the eruption becomes more explosive with lots of ash being ejected.
3 houses have been destroyed by the Lava Flow last night alone.
New lava flow addition red). To the North the main part of Portula (still spared from destruction) - Click on the image to watch the full size
Image courtesy and Copyright Involcan
Bárðarbunga scientific advisory board update December 1, 15:00 UTC
* Insubstantial (scientific way of saying almost none) changes have been on the volcanic eruption in Holuhraun over the last two weeks.
* Seismic activity in Bardarbunga continues to be strong. The biggest earthquake that was detected since noon on Friday, was of magnitude M4,5 on Friday, 28. November at 22:52. Since noon on Friday 12 earthquakes larger then M4,0 were detected in Bardarbunga. In total about 200 earthquakes were detected in Bardarbunga since noon on
Friday.
* About 10 earthquakes were detected in the dyke and around the eruption site in Holuhraun since Friday. All of them were smaller then magnitude M1,0. It is worth noting that the seismograph network is sensitive to wind so fewer smaller earthquakes are detected during a stormy weather like the one that has gone over Iceland in the last few
days.
Bardarbunga volcano - New map of the Holuhraun lava field. It's just over 75 km2 by now and keeps growing. - Image courtesy and copyright University of Iceland
Hottest place in Iceland right now, the boiling lava lake in Holuhraun - Image courtesy and copyright University of Iceland
#Bárðarbunga. Graphic showing the ice filled-covered caldera, along with subsidence graph. http://t.co/oAGlaOdqEQ pic.twitter.com/EKK9A9DrW3
— Dave McGarvie (@subglacial) November 30, 2014
Fogo, Cabo Verde Update November 30, 19:59 UTC
The lava flow is entering bit by bit in Portela and destroys everything which it finds on his path, here the building of the National Park headquarters
Fogo, Cabo Verde Update November 29, 14:03 UTC
Involcan volcanologists are cooperating with the local scientific people in measuring all kinds of data. On this picture an Involcan scientist is measuring the temperature of the eruption with an IR (Infra Red) instrument
Image courtesy and Copyright Involcan, Islas Canarias
Fogo, Cabo Verde Update November 29, 09:50 UTC
The images below are showing the extend of the current lava flow.
Images courtesy INGT
Russia Kuril Island volcanoes Update November 29
#volcan #volcano #Moyorodake - #Kudryavy #Chirpoi #Chirinkotan #Sinarka en images/with pict pic.twitter.com/neK78eh8sH
— CultureVolcan (@CultureVolcan) November 29, 2014
Fogo, Cabo Verde Update November 29, 00:16 UTC
Incredible night scenery eruption video at Fogo, enjoy the beauty of nature - thanks to local MuzikaTV
