john pike
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Posts posted by john pike
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Tuesday
09.12.2014 18:00:03 64.668 -17.512 0.6 km 4.9 99.0 3.1 km NNE of Bárðarbunga
imo called that 18.00 quake as above
however thats very shallow
http://en.vedur.is/earthquakes-and-volcanism/earthquakes/#view=table
Holuhraun Eruption 100-Days-Old By Alëx Elliott December 09, 2014 12:45 Updated: December 09, 2014 13:26
Photo: Páll Stefánsson.
Today marks 100 days since the ongoing volcanic eruption in the Icelandic highlands began.
A meeting yesterday between scientists from the Icelandic Met Office and the Institute of Earth Sciences at the University of Iceland, along with representatives from the Icelandic Civil Protection, the Environmental Agency of Iceland and the Directorate of Health concluded that there have been insignificant changes at the eruption site in recent weeks, but that seismic activity remains strong.
Scientists currently believe the eruption will probably continue until the subsistence at Bárðarbunga ceases—meaning the eruption could continue for several more months.
So far the eruption has caused the biggest lava flow for centuries and the dispersal of poisonous gas on the wind around Iceland. However, there has been no ash and no disruption to flights. The gas pollution today (Tuesday) is to the north and northeast of the volcano.
Though most likely, there are also other possible scenarios: “The volcanic fissure may lengthen southwards under Dyngjujökull, resulting in a jokulhlaup (glacial flood) and an ash-producing eruption,†a statement from the scientists says. “It is also possible that eruptive fissures could develop in another location under the glacier. If such an eruption would be prolonged it could eventually produce a lava flow.â€
A volcanic eruption in the Bárðarbunga caldera is also still a possibility. “Such an eruption would melt large quantities of ice, leading to a major jokulhlaup, accompanied by ash fall. Other scenarios cannot be excluded.â€
http://icelandreview.com/news/2014/12/08/concerns-about-acid-spring-melt
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havent looked at this for a few days
pressure looks to be on the up again (assuming the storms aint tainting these at present)
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M 4.8 - ICELAND - 2014-12-09 18:00:10 UTC
http://www.emsc-csem.org/Earthquake/earthquake.php?id=412377
http://www.emsc-csem.org/Earthquake/alert/?id=qd578;INFO&date=2014-12-09
hi rusty
looks like a 5 as you said
http://www.livefromiceland.is/webcams/bardarbunga/
new vent or very big fountain ????????????
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December 08 11:00 h (December 08 17:00 GMT)
In the last 24 hours the monitoring system of Popocatepetl volcano recorded 70 low-intensity exhalations along with emissions of steam, gases and occasionally small quantities of ash.http://www.cenapred.gob.mx/cgi-bin/popo/reportes/ultrepi2.cgi
pics and images in link above
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Volcanoes Today, 8 Dec 2014: Cerro Negro de Mayasquer volcano, Erebus, Fogo, Pavlof, Sinabung
Monday Dec 08, 2014 16:00 PM |The lava flow of Fogo passing near a destroyed building (image: INVOLCAN / @involcan / twitter)Fogo's lava flow reaching Bangaeira in the background - parts of destroyed Portela in the foregroundPyroclastic flow on Sinabung Saturday noon (source: Leopold Kennedy Adam â€@LeopoldAdam / twitter)Steam plume from Pavlof volcano on 5 Dec (AVO)Histogram of earthquakes at Chiles volcano (IGPEN)Seismic recording from Mt. Erebus on 5 Dec 2014Fogo (Cape Verde): The second village Bangaeira in the path of the rapidly advancing lava flow has been destroyed within only a few hours.
With 2 villages destroyed, more than 1700 people displaced and without some of their most valuable economic possession, farmland, this now 15 days old eruption is the worst volcanic disaster of the century. The history of 150 years of settlement in the Cha caldera is now under lava.
The flow continues to be well alimented, but it is still too early to predict how far it will eventually go: Following the natural gradient, it still needs to travel for another 4 km until it can reach the break-in-slope towards the steep outer eastern flank. From there, it could rapidly reach the coastal area where another 3 villages would be at risk: Corvo, Achada Grande, and Relva.
No historic lava flow from inside the caldera (vents west of the Pico cone) seems to have achieved this, i.e. reached the sea,- so far.
...8 Dec:
The new lava flow, more fluid than the earlier one, continues to advance rapidly. It has reached and started to engulf Bangaeira village, downslope of the already destroyed Portela village.
If the eruption continues long enough, the lava flow, following the downwards slope, would eventually reach the eastern coast.
Sinabung (Sumatra, Indonesia): The volcano remains active and dangerous although it has been generally quieter during the past weeks as compared to the surge in activity in Oct. However, sudden collapses of the still growing lava flow and/or explosions occur from time to time: a moderately sized, 2 km long pyroclastic flow traveled down the southern flank Saturday noon (local time).
Pavlof (Alaska Peninsula, USA): Weak activity continues at the volcano. The volcano observatory showed photographs showing the volcano emitting a steam plume and reports seismic activity is still elevated.
Increased temperatures at the summit, detectable on satellite data, are coming from the recent lava flow.
Cerro Negro de Mayasquer (Colombia): Seismic activity continues to be important. In the last week, almost 20,000 earthquakes with a daily average of 2845 were detected. 5 of them were felt by the local population, the largest one was a 3.8 event on 2 Dec at 17:58 local time.
Compared to October and November this year, when daily averages were 3740 and 4579, respectively, seismic activity has declined a lot, but remains high.
The epicenters of most quakes are located a few kilometers south-west of the Chiles volcano.
Erebus (Antarctica): The Mount Erebus Volcano Observatory (MEVO) reported yesterday that "it has been an active time for the last 24 hours. There were 6 significant eruptions which show up nicely on the MACZ (short period single vertical component) seismometer.
... There is no knowing if this will continue or was just a one off. It does show that gas is accumulating somewhere at depth and migrates to the lava lake as a big bubble where it bursts explosively sending volcanic bombs shooting above the lava lake and sometimes out onto the crater rim where people may be working."########################
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hi mark
certainly some strange folk around
re friday
if we do see something it will likely only be brief
however it would be nice to see something even if only for looking at purposes
got plenty of winter left for the proper fun
:)this week is really a tricky week to call at present
i will update tomorrow night to see where we stand
off now
goodnight all
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friday is a tricky call
its a case of what comes first
the 528 dam air or the front to our far north west
maybe something wintry for us down here but not going there yet
gfs para shows this
but if the colder air digs in after it will likely be rain
will re check that again tomorrow night
saturday looks cold with a breezy north west flow
but dry at present
ukmo raw
for sunday bottom right
too far to call but looks a shade warmer at present
winds more westerly and from a warmer source there
all this is subject to change though
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Monday
08.12.2014 21:59:47 64.682 -17.445 7.2 km 4.2 99.0 6.1 km NE of Bárðarbunga
quakes are picking back up again now
still deep too
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Monday
08.12.2014 20:57:47 64.618 -17.462 12.9 km 4.6 99.0 4.0 km SE of Bárðarbunga
Se and very deep
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http://www.weathercharts.org/ukmomslp.htm
brief as busy
tomorrow http://www.weathercharts.net/noaa_ukmo.../PPVE89.gif... should stay dry but cloudy temps will be cold but late afternoon it will get to around 8 degrees as the warm from comes in and rain gets here,,windy SW but not overly strong
tomorrow night http://www.weathercharts.net/noaa_ukmo.../PPVG89.gif... winds veer back NW and will be gusty for a time could see temps go to 10 degrees,,,then the cold front comes in after 3am and it will dry out and temps will drop but not frost likely due to the wind strengthwednesday winds gusty NW and temps will drop back again to around 4 degrees. should be a sunny day but RAW in the wind (around 30 mph but around 40+ coastal) should stay dry barring the odd onewednesday night http://www.weathercharts.net/noaa_ukmo.../PPVJ89.gif... strong nw wind,,30-40 mph but maybe a 50 coastal, still got some showers around but only local,,,,temps cold close to freezing but no frost again as the wind should stop that,,,,a very slim chance the odd wintry shower may appear late at night but only a low chance.....more on that tomorrow if it looks more interestingthursday http://www.weathercharts.net/noaa_ukmo.../PPVK89.gif... looks very similar to wednesday night and winds still being a pest,,it does look mainly dry and sunny for a bulk of the day,,temps cold early but may warm up a shade when winds veer south west later (7-8 degrees max)wet and windy thursday nightfridaycold again
and wet the far south
weekend is too far away for now
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Monday
08.12.2014 18:04:50 64.673 -17.442 3.6 km 4.0 99.0 5.4 km NE of Bárðarbunga
http://en.vedur.is/earthquakes-and-volcanism/earthquakes/vatnajokull/#view=table
plus more quakes again at kistufell
http://www.livefromiceland.is/webcams/bardarbunga/
clear and still looks lively there
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Holuhraun Biggest Lava Flow in Centuries By Alëx Elliott December 08, 2014 03:25 Updated: December 08, 2014 07:53
If the Holuhraun volcanic eruption continues as it has done, then both the sinking of Bárðarbunga and the eruption itself can be expected to continue for at least several more months.
The longer the current eruption continues, the less likely it becomes that Bárðarbunga will erupt, as had been feared. “Things could develop differently and scenarios involving an eruption under the glacier and in Bárðarbunga are still possibilities,†according to the scientific committee of the Civil Protection Agency, as reported by mbl.is.
The scientists pored over data from the way the eruption and seismological events have developed since the beginning of the episode this summer. The earthquake swarm at Bárðarbunga is one of the biggest ever recorded in a mountain anywhere in the world—although the sinking of Bárðarbunga and the intensity of the Holuhraun eruption have both slowed of late.
“Seismic activity and lava production are though still large-scale in comparison to eruptions in Iceland over the last hundred years,†the committee explained.
Several days after the eruption started, the craters of Bárðarbunga began to sink by up to 80 centimeters a day. That rate has slowed gradually and now stands at about 25 cm per day.
The new lava spewed out from Holuhraun represents the biggest lava flow in Iceland since the Skaftáreldar eruptions (1783-1784) and is likely the world’s third-biggest lava flow since that time.
http://icelandreview.com/news/2014/12/08/holuhraun-biggest-lava-flow-centuries
http://icelandreview.com/news/2014/12/08/high-so2-pollution-levels-southeast-iceland
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Monday
08.12.2014 16:07:42 64.668 -17.405 3.7 km 3.9 99.0 6.6 km ENE of Bárðarbunga Monday
08.12.2014 15:20:59 64.678 -17.500 8.3 km 3.9 99.0 4.4 km NNE of Bárðarbunga
08.12.2014 13:41:13 64.663 -17.402 2.2 km 3.9 99.0 6.5 km ENE of Bárðarbunga Monday
08.12.2014 13:27:52 64.670 -17.470 6.9 km 3.9 99.0 4.3 km NE of Bárðarbunga Monday
08.12.2014 11:22:07 64.669 -17.509 7.1 km 4.3 99.0 3.3 km NNE of Bárðarbunga Monday
08.12.2014 10:54:29 64.674 -17.439 8.8 km 4.2 99.0 5.6 km NE of Bárðarbunga Monday
08.12.2014 08:09:49 64.668 -17.461 4.9 km 4.3 99.0 4.4 km NE of Bárðarbunga Monday
08.12.2014 05:29:22 64.680 -17.498 7.9 km 4.0 99.0 4.6 km NNE of Bárðarbunga Monday
08.12.2014 04:23:21 64.616 -17.392 5.0 km 4.2 99.0 7.0 km ESE of Bárðarbunga Monday
08.12.2014 03:37:41 64.678 -17.469 7.4 km 4.1 99.0 5.0 km NNE of Bárðarbunga Monday
08.12.2014 03:02:22 64.663 -17.396 10.2 km 4.3 99.0 6.8 km ENE of Bárðarbunga Monday
08.12.2014 01:37:39 64.666 -17.448 4.2 km 4.1 99.0 4.8 km NE of Bárðarbunga
plus 3 so far today
http://en.vedur.is/earthquakes-and-volcanism/earthquakes/vatnajokull/#view=table
still got depth there
8 December 2014 10:00 - from geoscientist on duty
Since noon yesterday, the largest earthquake was an M4.4 at 15:10 (7 Dec.) located at the northeastern rim of the Bárðarbunga caldera. Seven other quakes over 4 in magnitude were detected at Bárðarbunga and all in all about 150 earthquakes there since noon yesterday. About ten quakes were detected in the dike intrusion. At least one occurred at Tungnafellsjökull. Visibility towards the eruptive site in Holuhraun has been good this morning.
http://en.vedur.is/media/jar/Factsheet_Bardarbunga_20141208.pdf
scientific meeting notes in link above
100 days tomorrow
blimey
http://www.livefromiceland.is/webcams/bardarbunga/
looks like an as we were still
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Authorities are monitoring increased activity from the Nevado del Ruiz Volcano, which last erupted in 1985, killing some 20,000. Colombian experts continue monitoring the Nevado del Ruiz volcano, the most active volcano in the country, given its increased activity in recent days with emissions of gases and ash, and also internal earthquakes. Specialists reported a tectonic-volcanic quake inside the volcano Saturday, with a depth of about three kilometers which resulted in fractured rocks. The quake was felt in the nearby town of Las Brisas in Manizales an in northern Tolima. The 19 municipalities in the departments of Caldas and Risaralda remain on yellow alert (medium), however. Located 220 kilometers west of Capital Bogota, the crater is part of the Andean Volcanic Belt which including another 74 similar formations. The first eruptions of Nevado del Ruiz occurred about 1.8 million years ago. However, on November 13, 1985, after 69 years of dormancy the volcano's erupted, catching the nearby towns off guard. The lava from the volcanic crater melted the mountain's glaciers, sending enormous mudslides, landslides, and debris flowing down its slopes at 50 kilometers per hour. The mass engulfed the town of Armero, killing more than 20,000 of its almost 29,000 inhabitants. Casualties in other towns raised the overall death toll to 23,000. The magnitude of the disaster captured worldwide attention, along with widespread criticism for the Colombian government which had ignored warnings from multiple specialists to evacuate the area due to the volcanic activity detected.
http://hisz.rsoe.hu/alertmap/site/index.php?pageid=event_desc&edis_id=VA-20141207-46242-COL
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Sunday
07.12.2014 15:10:41 64.673 -17.530 1.5 km 4.4 99.0 3.6 km N of Bárðarbunga Sunday
07.12.2014 10:38:13 64.667 -17.363 8.3 km 4.5 99.0 8.4 km ENE of Bárðarbunga Sunday
07.12.2014 10:33:16 64.670 -17.439 4.5 km 3.4 99.0 5.4 km NE of Bárðarbunga Sunday
07.12.2014 07:21:41 64.671 -17.450 8.7 km 4.1 99.0 5.0 km NE of Bárðarbunga Sunday
07.12.2014 06:09:01 64.672 -17.442 8.9 km 4.2 99.0 5.4 km NE of Bárðarbunga Sunday
07.12.2014 02:15:39 64.613 -17.429 1.7 km 4.2 99.0 5.6 km ESE of Bárðarbunga Sunday
07.12.2014 01:59:12 64.667 -17.406 4.5 km 3.7 99.0 6.5 km ENE of Bárðarbunga Sunday
07.12.2014 01:24:46 64.675 -17.495 6.4 km 4.0 99.0 4.2 km NNE of Bárðarbunga Sunday
07.12.2014 00:10:53 64.703 -17.522 12.5 km 3.5 99.0 6.9 km N of Bárðarbunga
todays plus 3 quakes
http://en.vedur.is/earthquakes-and-volcanism/earthquakes/#view=table
all around north east or east north-east
a couple of shallower ones but the rest look deep
Updated information 7 December 2014 12:00 - from geoscientist on dutyAbout ten earthquakes of magnitude between M4 and M5 have been observed in the Bárðarbunga area during the past 24 hours. The largest quake was M4.5 at 10:38 this morning. In total, almost 120 quakes were observed during the past 24 hours, somewhat more than the day before. A few quakes were observed in the dike intrusion.
http://en.vedur.is/earthquakes-and-volcanism/articles/nr/2947
http://www.livefromiceland.is/webcams/bardarbunga/
no cams tonight :-(
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Volcanoes Today, 7 Dec 2014: Reventador volcano, Aso, Fogo
Lava flow from Fogo in Portela (Asociación Canaria de VolcanologÃa / facebook)The active vents of Nakadake (Aso volcano)Reventador's new lava flow seen with infrared webcam this morningFogo (Cape Verde): The eruption intensified according to news reports on Saturday, and destroyed most of what still had been left of Portela. The new lava flow advanced at 30 meters per hour and consumed another 20 houses and the sports center.
The flow is now headed towards Bangaeira village, which is threatened to suffer the same fate as Portela in a short time. Authorities ordered full evacuation of the area. One of the main access roads, only opened a few days ago, was also destroyed again by the lava flows, making the evacuation of people and remaining goods difficult.
Aso (Kyushu): The strombolian activity from Nakadake crater continues to be quite intense. At least 2 vents are active, producing frequent explosions with incandescent ejecta and ash plumes that rise a few 100 meters.
Reventador (Ecuador): A new lava flow started to descend the southwest flank of the summit cone on 2 Dec and is still active. It has reached the base of the cone and is now approx. 1 km long.
The recent surge in lava effusion began on 2 Dec. A similar lava flow occurred earlier in November. The following time-lapse shows the start of the lava flow and its evolution between 1-5 Dec:
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hi polar
Friday
05.12.2014 21:04:54 64.621 -17.371 1.9 km 5.1 99.0 7.8 km ESE of Bárðarbungaand shallow
http://en.vedur.is/earthquakes-and-volcanism/earthquakes/#view=table
and south east for a change
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wednesday at present
at present
winds around 30-40 mph
poss 50 coastal
dry but risk of heavy showers early and late
will feel raw around 6-7 degrees but horrid in the wind
all this is related to the low location so expect this to be amended over the next few days
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hi chris
its tricky for us here at present
i expect windy but
going to wait for the fax to come out for this
will get an idea when they update later tonight
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hi all
tonight
temps
looks like a frost for most
but cloudcover and fog look to stop all of us seeing it
obviously these are guides and all depends where the clear slots are to who gets the lowest temps
looks dry
tomorrow
a weak north west flow but later in the day the winds will increase and veer to the west
cloudy foggy start for the far south east but should be bright by mid-day
by 3pm
more cloud rolling in but the far south east the sunniest spot
by 6pm
clouds back again
rainfall
barring a slight risk for the north east coasts of our region getting some drizzle
it should stay dry
temps
a cold day with temps between 3-5 degrees
:cold:tomorrow night
starts cold but wind and rain moving in and temps will rise overnight
sunday
still a breezy north west wind
looks wet up to early pm
then dry for a while and then temps dropping again sunday night
will do sunday tomorrow as a bit tricky the timing of the cold front
anyway hope that helps
regards
john
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Volcanic activity worldwide 5 Dec 2014: Shiveluch volcano, Bardarbunga, Kilauea, Fogo, Mayon, Kuchin...
Friday Dec 05, 2014 16:50 PM |Aerial view of the Holuhraun eruption yesterday (credit: Martin Hensch / IMO)The vents at Fogo volcano and the new lava flow near its source (image: GeoVol)Lahar hazard map for Mayon volcano (PHILVOLCS)Map showing the location of the new lava flow finger headed north (HVO/USGS)Bardarbunga (Iceland): The eruption continues to with fluctuating intensity. Lava effusion rates are still very high, but overall seem to follow a decreasing trend. Also, gas supply to the lava lake above the vent seems to be becoming less.
It is too early to predict an end of the eruption, which already has created the largest lava flow on earth since the massive 1783 Laki fissure eruption - only 50 km to the south and likely also fed by the Bardarbunga volcanic system.
Fogo (Cape Verde): The eruption continues. A new lava flow that appeared last night is heading again towards the village of Portela, which it might hit in less than 2 days.
At the eruptive fissure, 3 vents seem to still be active and explosive activity has decreased a lot. The eruption continues to be dominated by lava effusion.
The large flow that covered part of Portela during the past days stopped yesterday, probably caused by a temporary (?) drop in effusion rate which in turn lead to the clogging of the tube that alimented it.
Authorities took the opportunity to try to open a fifth road through the lava flow in order to reach Portela and facilitate the transport of goods that remain to evacuate - mostly wine and food for livestock.
Shiveluch (Kamchatka): A large eruption (but not unusually large for Shiveluch!) was reported to have occurred this afternoon (14:42 UTC), producing an ash plume to 30,000 ft (9 km) altitude.
Webcam images show nothing due to night-time and likely cloud cover.
Kuchinoerabu-jima (Ryukyu Islands): JMA reported that no eruptions occurred from the volcano during 25-28 November although the level of activity remained elevated. White plumes rose 200 m above the crater.
Low-level seismicity continued and tremor was absent. The Alert Level remained at 3 (on a scale of 1-5). (Smithsonian / USGS Weekly Volcanic Activity Report 26 November-2 December 2014)
Mayon (Luzon Island): PHIVOLCS warns against possible lahars (mud flows) that will likely occur in river beds draining from Mayon and Bulusan volcanoes during the expected heavy rains from typhoon Ruby.
Lahars, althoug not directly the result of volcanic activity, are among the most destructive hazards on active volcanoes, where much loose material has been accumulated on typically steep slopes and as a result can be easily re-mobilized by rain.
Kilauea (Hawai'i): The new lava flow finger from the 27 June flow continues to advance towards Pahoa and is now approx. 4 km (2.5 miles) above the intersection of PÄhoa Village Road and Highway 130, near the Pahoa Marketplace.
It is moving to the north at rates of several hundred meters per day. It has reached an area where several lines of steepest descent nearly converge due to flat topography. Until the flow passes this area of flat topography, the future flow path is uncertain. (Source: HVO daily updates)
Heard (Australia, Southern Indian Ocean): Thermal anomalies on the E flank were detected during 1-2 Dec on NASA satellite data (VIIRS). satellite images during 2-30 November.
MODIS detected thermal anomalies from September 2014 to 21 July 2014, and again on 16 November 2014, due to a persisting lava lake and possible lava flows. (Smithsonian / USGS Weekly Volcanic Activity Report 26 November-2 December 2014) ##########
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:cold:
General Volcanic Activity Thread!
in Space, Science & nature
Posted
Volcanoes Today, 9 Dec 2014: Turrialba volcano, Laguna del Maule, Aso
Aso (Kyushu): Mild strombolian activity and ash emissions continue at Nakadake crater.
Turrialba (Costa Rica): A new eruption occurred last evening at 21:30 local time. Not much detail about the eruptions is available, but it seems to have been a rather small event. Light ash fall was noted in areas up to 20 km distance. There are no reports of damage or injuries.
A volcanologist from the National Seismic Network said in an interview that the new eruption possibly was triggered by the recent earthquakes in the region.
Laguna del Maule (Central Chile): The volcanic field of Laguna del Maule is a potentially dangerous volcano. Scientists have found alarming levels of uplift, suggesting its magma chamber is filling up. What does this mean? In a recent study published at GSA, scientists try to give an answer.
http://www.volcanodiscovery.com/laguna-del-maule/unrest.html
read the study
its very interesting
"The rate of deformation at Laguna del Maule has been among the highest ever measured at a volcano that is not actively erupting", the authors write.
It has been known since Roman times (and is still far from understood) that large, active calderas can undergo periods of significant up- and downlift of the ground. An example is the Campi Flegrei caldera which in parts rose more than 2 meters in just 3 years between 1982-85!