Volcano and Earthquake watch
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2hats
Dust.
Was also seen after the 1883 Krakatoa eruption (see lower plot in following tweet) and has been documented in nuclear test monitoring. I would guess you are seeing the π phase change each time the wave front converges on and reflects from the antipodal points.
The third (!) pressure signal passed southern UK this morning at about 7am, possibly compression-leading (positive, over-pressure) but low S/N means it is difficult to be certain (well, in my own data).
Clear view of the primary leading pressure edge in the Himawari-8 water vapour channel:
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Storm Fox
Trying the find the next noun to verb
I found this tweet that I think answers my observation above. The second wave not coming from a different direction taking a longer path, but a reflection of the first wave from the antipodean point over Algeria. Unfortunately there are no Wunderground stations reporting in Algeria
Ninja'd by 2hats
Storm Fox
Trying the find the next noun to verb
I have a similar similar bump starting at 07:03 till about 07:17, but it's difficult to tell on my trace from the atmospheric changes.
StoneRoad
heckling from the back!
Some of the BBC's coverage is starting to indicate the scale of the devastation in Tonga ...
- especially as communications are, to put it mildly, rather patchy.
Hope that the relief effort doesn't import covid-19 alongside the staff & supplies that will be needed.
e2a - link - Tonga eruption: How its impact spread so widely and violently
- especially as communications are, to put it mildly, rather patchy.
Hope that the relief effort doesn't import covid-19 alongside the staff & supplies that will be needed.
e2a - link - Tonga eruption: How its impact spread so widely and violently
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Balbi
Hey, Dean Yager!
NZ and Aussie are sending observer planes over, because the comms cable has likely been severed during the eruption and after effects.
We've got a lot of locals from the Kingdom, so once it's established what's going on and what's needed you'll see a big relief effort.
Some good analysis here, About it
We've got a lot of locals from the Kingdom, so once it's established what's going on and what's needed you'll see a big relief effort.
Some good analysis here, About it
farmerbarleymow
I'm Petee's spirit animal
Some pictures in this article.
www.theguardian.com
Tonga volcano: islands covered in ash as three deaths confirmed
Pictures from New Zealand defence force surveillance flight and UN satellite images show land and trees coated in ash
brogdale
Coming to terms with late onset Anarchism
Impressive.
2hats
Dust.
Himawari-8 imagery of the ash cloud drifting west over northern Australia, carried aloft in the stratosphere. That multispectral imager is (almost fully) true colour capable (fairly good RGB coverage, full-disc, though it doesn't quite map to the response of the human eye) so am left wondering if the sequence is also illustrating the rich colours of the accompanying ash/aerosol scattered sunrise and sunset as the day/night terminator sweeps by.
e2a: Just to illustrate (from the first frame): (A) sunrise sky, followed by (B) a ash/SO2 forward-scattered morning sky.
There are indeed reports of a spectacular sunrise seen from Queensland.
www.abc.net.au
In Tonga itself (though not verified):
www.kanivatonga.nz
e2a: Just to illustrate (from the first frame): (A) sunrise sky, followed by (B) a ash/SO2 forward-scattered morning sky.
There are indeed reports of a spectacular sunrise seen from Queensland.
Stunning skies and a golden orb light up Queensland after Tongan volcano
The colourful and constantly changing sky over Queensland had many people reaching for their cameras this morning.
www.abc.net.au
In Tonga itself (though not verified):
Residents share photos of apocalyptic red skies in wake of Hungas large volcanic activities - Kaniva Tonga News
Startling images from Vava’u and Ha’apai islands this evening show otherworldly red-orange skies hanging over parts of the islands, from which the threatening volcanic eruption at the Hungas could be seen in the sky. Neiafu and Mango island residents shared photos of the incidents on Facebook...
www.kanivatonga.nz
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brogdale
Coming to terms with late onset Anarchism
wow.
StoneRoad
heckling from the back!
Not surprising
a) it was a big explosion [I'm wondering if anyone has worked out the TNT equivalent, yet. I don't remember seeing it]
b) measuring equipment is both more sensitive and there are far more recording stations [compared to, say, Krakatoa in 1883]
2hats
Dust.
a) Estimated at 10MT (comparable to Ivy Mike, the first full-scale thermonuclear test).
b) Actually the current slow-moving pressure systems have helped - so slowly varying that it has been relatively easy to spot potential signal discontinuities for several cycles.
Have now seen what could be pulse number 6. There certainly appears to be a wavetrain passing through at roughly the right times. Might be clearer in a few more hours.
teuchter
je suis teuchter
In Tonga itself (though not verified):
Residents share photos of apocalyptic red skies in wake of Hungas large volcanic activities - Kaniva Tonga News
Startling images from Vava’u and Ha’apai islands this evening show otherworldly red-orange skies hanging over parts of the islands, from which the threatening volcanic eruption at the Hungas could be seen in the sky. Neiafu and Mango island residents shared photos of the incidents on Facebook...
How are they posting on Twitter if the undersea cable is broken
SMH
2hats
Dust.
Thuraya | Thuraya Mobile Satellite Communications Company
Thuraya, is the mobile satellite services subsidiary of Yahsat, a leading global satellite operator based in the UAE, offering innovative satellite communications solutions to a variety of markets.
Storm Fox
Trying the find the next noun to verb
After 30 seconds ceaseless googling I found this. https://www.itu.int/en/ITU-D/Region...xperiences September 2016 FINAL Session 5.pdf So there are satcomm providers, but only a few people there are going to have a satcomm setup, plus they would need a generator as I assume the power is down.* and Twittering may not be people's highest priority at the moment*
Because of the fuck-off big volcano*
**Just in case of any confusion as to why
2hats
Dust.
It's referring to an alternate link to re-establish international peering for their national network infrastructure.
Diplomatic missions, NGOs, some enterprises will have separate Inmarsat options or similar. Some individuals will have Iridium data plans.
ferrel_hadley
New Member
Some of JM Turners work is thought to be influenced by sunsets post Tambora (1815) and Munch from Krakatoa (1883).There are indeed reports of a spectacular sunrise seen from Queensland.
Stunning skies and a golden orb light up Queensland after Tongan volcano
The colourful and constantly changing sky over Queensland had many people reaching for their cameras this morning.
In Tonga itself (though not verified):
Residents share photos of apocalyptic red skies in wake of Hungas large volcanic activities - Kaniva Tonga News
Startling images from Vava’u and Ha’apai islands this evening show otherworldly red-orange skies hanging over parts of the islands, from which the threatening volcanic eruption at the Hungas could be seen in the sky. Neiafu and Mango island residents shared photos of the incidents on Facebook...
Volcanoes scale differently to most other natural disasters. Unlike droughts or storms they really can get big enough to impact the globe and change history.
Places like Naples, Mexico City, Iceland and New Zealand are on something of a ticking time bomb. An eruption big enough to wipe out a significant portion of life is brewing. Its just now or in 10 000 years.
Same but on a shorter span with the coastal US Pacific Northwest and tsunamis.
Restless planet.
farmerbarleymow
I'm Petee's spirit animal
I've got a book about their impact - not read it yet though.
Tambora and the Year Without a Summer
In 1816, the climate went berserk. The winter brought extreme cold, and torrential rains unleashed massive flooding in Asia. Western Euro...
www.goodreads.com
StoneRoad
heckling from the back!
and Etna's off again ... first time in 2022 after a busy year in 2021
Mount Etna erupts for first time this year
Sicily's Mount Etna lights up the night sky in first eruption of 2022, billowing smoke and ash.
www.bbc.co.uk
farmerbarleymow
I'm Petee's spirit animal
Etna
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