Volcanoes Erupting All Over
- Thread starter Laura
- Start date
Thanks for sharing this info, I haven’t taken a full look at the links, but wanted add that I was thinking about the build up of dust recently, be it comet or in general from volcanoes, wildfires or whatever else.
I once worked for a small custom cabinet shop and the master builder was always adamant about cleaning up the saw dust and making sure the interior vacuum was on when cutting so that dust wouldn’t become too dense and cause a combustion or start a fire in the shop.
Anyway, this got me thinking of what might happen at a macro level, as in across our atmosphere, if dust particles became too dense and triggered an explosion? I know it wouldn’t be good, but wonder if this “loading up” of dust in the atmosphere could be causing the increase in extreme wildfires among other things.
Heck, maybe if two or more types of dust with different properties (densitwere intermixed together in the atmosphere coupled with a strong current (air flow) this could cause them to vibrant and make sound kinda like blowing through a blade of grass - sky trumpets? There was video posted of this on forum recently from the fires in Russia can’t recall the name…
Anyway, I looked into the possibility of combustion of dust in operations and it’s definitely a thing. Here’s a detailed document from OSHA about how this can happen:
Also interesting is effect from moisture on dust particles, from Appendix E, Section 2 - Percent Moisture Content:
Maybe there’s some more here to throw into the mix and mull over in regards to upcoming “events”. Here’s the link to the OSHA doc, it’s got good nuts in bolts info even if it’s 43 pages long. Hope this helps in some way!
Horrifying possibility, however I think dust deflagration requires thick mixtures of highly combustible particles in specific conditions. If I remember correctly, grain silo explosions are caused by this. It's unlikely that such mixtures could occur on an atmospheric scale though, due to the volume, layering and movement of air at various altitudes.Anyway, this got me thinking of what might happen at a macro level, as in across our atmosphere, if dust particles became too dense and triggered an explosion? I know it wouldn’t be good, but wonder if this “loading up” of dust in the atmosphere could be causing the increase in extreme wildfires among other things.
Regarding wildfires, I think that the most likely factors are extreme temperatures due to climate volatility in advance of the cooling shift, and significantly more ignition events due to increased lightning strikes as the upper atmosphere becomes more electrically charged. You do make a good point about wildfires adding to the dust loading though. And no doubt there's a lot of CO2 generated, as well!
Thanks for the response, @Ryan . What you mention makes sense although got me thinking more. I would imagine by the time our atmosphere got so dense with dust to risk deflagration we would be long gone or hiding underground.
I’m sure there has got to be a threshold spec that determines the conditions for ignition based on the level of particulate density in relation to the overall spatial area. I’ll need to look in the doc more when I have a chance. I wonder what that metric would be at an atmospheric level? Big number no doubt. Wonder if micro-zones of varying dust density could occur based on the polarity of a region and trigger some “ignition” event?
Going a little further, applying this knowledge could also be used for nefarious purposes and probably has. The tactic could be used by “the secret team” where by the dust used leaves no trace of itself - chemical plants come to mind
Agreed. Last thought on this, also on a macro-cosmic level. Suppose a planet became so dense with dust and ignited some how - plasma arc or other electrical catalyst - and exploded - what would the aftermath look like? First thought was something similar to nebulae although they are apparently formed from dying stars:
Anyway, sorry for going a little off the thread topic. I guess there’s plausibility here but wont belabor my musings here. Definitely more for me to discern here…
Wow! I guess that cumulonimbus-style "anvil" shape at the top of the column is due to the meeting point of the troposphere and stratosphere? Fascinating stuff!
Eruption of Ebeko volcano in the Kuril Islands
The eruption of Ebeko frightened the residents of Severo-Kurilsk. In the morning, the volcano threw out a column of ash 3.7 kilometers high, and then it spread for another 10 kilometers. No one was injured and the population is safe.
Residents of Severo-Kurilsk today woke up the eruption of Ebeko-Russian
The eruption of Ebeko frightened the residents of Severo-Kurilsk. In the morning, the volcano threw out a column of ash 3.7 kilometers high, and then it spread for another 10 kilometers. No one was injured and the population is safe.
Residents of Severo-Kurilsk today woke up the eruption of Ebeko-Russian
XPan
The Living Force
Etna • Sicily - Italy
54th paroxysm event
29 Aug 2021
It is time again - as Mama Etna is just having it's 54th paroxysm early evening into sunset. The first four photos are coming from my husbands sister Gabi, who lives in the town of Adrano, afoot Etna in the SW. Apparently ash fell over Nicolosi in the south (ca 15 km from the top), Fornazzo (Etna east flank), and Giarre (east coast) . The ash over Nicolosi was showed bigger chunks, "fingernail sized", my guy described the size as). A lava flow has been appearing at the top at dusk.
Other photos
Photo by Carmen Plate
Photo by Marc Gelen
54th paroxysm event
29 Aug 2021
It is time again - as Mama Etna is just having it's 54th paroxysm early evening into sunset. The first four photos are coming from my husbands sister Gabi, who lives in the town of Adrano, afoot Etna in the SW. Apparently ash fell over Nicolosi in the south (ca 15 km from the top), Fornazzo (Etna east flank), and Giarre (east coast) . The ash over Nicolosi was showed bigger chunks, "fingernail sized", my guy described the size as). A lava flow has been appearing at the top at dusk.
Other photos
Photo by Carmen Plate
Photo by Marc Gelen
Increasing volcanic and geothermal activity in Iceland: flooding and harmful levels of sulphur detected in rivers downstream from volcanoes underneath a glacier; as well as uplift reported at Aska volcano that started at the end of July. Note that for both they aren't entirely sure what's causing it, although they do say that Iceland is prone to intermittent surges in activity.
At a quick glance of the locations on the map, it seems that rising activity isn't localised, as such, it's rather spread out across the centre and southern parts of the country?
Articles below:
At a quick glance of the locations on the map, it seems that rising activity isn't localised, as such, it's rather spread out across the centre and southern parts of the country?
Articles below:
Inflation at Askja:Flooding & sulphuric smells at rivers in Iceland linked with change in geothermal & volcanic activity
Desirai Thompson
Grapevine.is
Wed, 01 Sep 2021 12:00 UTC
© Vísir/Jóhann K.
The river Skaftá in Southern Iceland has been seeing changes in recent days indicating a flood has begun.
Electrical conductivity in the river has increased steadily over the past two days, an indication that geothermal factors are involved. The water level has also risen in the past few hours, according to MBL. According to the Icelandic Meteorological Office, sulphuric smells have also been reported in the vicinity of Skaftá and Hverfisfljót.
Residents and passersby in the area are encouraged to remain diligent and apprise themselves of potential changing conditions in the area. Flooding over the riverbank and across nearby roads is possible in the next few days.
© Yandex
Map showing location of Vatnajökull National Park, Skaftárvellir, and Fagradalsfjall volcano that saw earthquake swarms in 2019 and began erupting in 2021
Additionally, the concentration of hydrogen sulphide from glacier runoff to the river is so high that it may damage the mucus membranes of the eyes and respiratory tract. Cracks are also able to quickly form around Vatnajökull at this time. Tourists are therefore encouraged to avoid this area as well as Skaftárjökull, Tungnárjökull and Síðujökull where running water may come to the surface.
Comment: Regarding activity at Vatnajökull, Wikipedia notes:
In more modern times, the volcanoes continue to erupt beneath the glaciers, resulting in many documented floods. One jökulhlaup in 1934 caused the release of 15 km3(3.6 cu mi) of water over the course of several days.[5] The volcanic lake Grímsvötn was the source of a large jökulhlaup in 1996.[6] There was also a considerable but short-lived eruption of the volcano under these lakes at the beginning of November 2004.[7]On 21 May 2011 a volcanic eruption started in Grímsvötn in Vatnajökull National Park at around 7 p.m.[7] The plume reached up to 17 kilometres (11 mi).[7]
Uplift detected at Askja volcano in Iceland, began end of July
Icelandic Met Office
Fri, 03 Sep 2021 22:00 UTC
© Wikipedia
Askja is located in Iceland. Pictured here in 1984.
GPS observations and ground deformation maps derived from Sentinel-1 satellite data reveal that Askja volcano began inflating at the beginning of August 2021. The uplift signal is centered on the western edge of Öskjuvatn, close to Ólafsgígar, and corresponds to ~5 cm/month of vertical motion. Geodetic modelling (performed using both GPS and satellite data) indicates that the source of this inflation is located at a depth of approximately 3 km and corresponds to a volume change of approximately 0.001 km³/month.
The cause of such inflation is uncertain, but most likely it is due to the inflow of new magma. Askja volcano is seismically active and earthquakes are regularly measured in the area.
The image shows the near-vertical deformation in mm for the period 1-21 August. The InSAR image is obtained from two passages of Sentinel-1 satellite. The red color indicates uplift and the blue corresponds to subsidence (see the scale). The area experiencing the highest inflation is north-west Öskjuvatn. The black triangle indicates the location of the closest GPS station Ólafsgíga (OLAC).
The last eruption at Askja was in 1961. Regular geodetic measurements were done in 1970-1972 and showed a period of uplift, however no further measurements were acquired until 1983. Since then, a continued subsidence of a rate of 1 cm/year was detected until this current inflation phase started.
Active volcanoes in Iceland are often characterized by periods of inactivity, lasting years to decades, with intervals of enhanced seismicity, geothermal activity, and inflation. In most cases, magmatic intrusions do not culminate into an eruption. At this stage it is then very difficult to anticipate how the situation will evolve. The inflation is continuing at present (3. Sept 2021) and will be closely monitored by IMO which will distribute additional information in case of further changes.
More information about Askja volcano is available at icelandicvolcanos.is
Data from the GPS station OLAC (location shown in the InSAR image), for the North, East and Up components over the period 27 July - 2 September 2021. The station, which is located close to the center of the inflating area, shows that the uplift started between the end of July and beginning of August (mainly visible in the Up component) and it is still ongoing (2. Sept 2021). The dashed red line indicates the rise speed that is assessed to be ~5 cm /month.
Exhalation of the Popocatepetl Volcano yesterday covered with snow, with emission of water vapor and the exhalation with small amounts of ash.
Protección Civil México@CNPC_MX
5:20 PM · Sep 6, 2021
[Suwanosejima Ash Fall Forecast (Breaking News)]
Within an hour, there is a rather large amount of ash fall in Toshima Village, and ash fall is expected to reach Toshima Village in Kagoshima Prefecture. Also, in the range from the crater to about 4 km southeast, small fountains may be swept away by the wind.
特務機関NERV@UN_NERV
7:17 PM · Sep 6, 2021
5:20 PM · Sep 6, 2021
[Suwanosejima Ash Fall Forecast (Breaking News)]
Within an hour, there is a rather large amount of ash fall in Toshima Village, and ash fall is expected to reach Toshima Village in Kagoshima Prefecture. Also, in the range from the crater to about 4 km southeast, small fountains may be swept away by the wind.
特務機関NERV@UN_NERV
7:17 PM · Sep 6, 2021
Slight explosion this dawn Popocatepetl volcano.
XPan
The Living Force
Fagradalsfjall, Iceland
13 Sep 2021
Supposedly 5 new vents opened up at the Fagradalsfjall eruption site on Iceland today, after a recent longer break - making it now the biggest eruption in it's timeline.
••• Older images •••
Merapi, Indonesia
27 May 2021
Gunarto song captured on 27 May 2021 a meteor seemingly "plunging" into the crater of the Merapi volcano.
Fagradalsfjall, Iceland
26 Aug 2021
As the night returned to the arctic regions, photographer Marceau Gresse captured the Fagradalsfjall eruption together with Northern Lights on 26 Aug 2021
Fukutoku-Oka-no-ba • Japan
27 Aug 2021
13 Sep 2021
Supposedly 5 new vents opened up at the Fagradalsfjall eruption site on Iceland today, after a recent longer break - making it now the biggest eruption in it's timeline.
••• Older images •••
Merapi, Indonesia
27 May 2021
Gunarto song captured on 27 May 2021 a meteor seemingly "plunging" into the crater of the Merapi volcano.
Fagradalsfjall, Iceland
26 Aug 2021
As the night returned to the arctic regions, photographer Marceau Gresse captured the Fagradalsfjall eruption together with Northern Lights on 26 Aug 2021
Fukutoku-Oka-no-ba • Japan
27 Aug 2021
