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Posts treating: "Eruptions"

Tuesday, 30 September 2014

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Volcano Research at Bardarbunga 

Geology.com News [2014-09-30 18:24:50]  recommend  recommend this post  (23 visits) info

 US,GB
Since mid‐August, Iceland’s Bardarbunga volcano has experienced more than a thousand earthquakes and two eruptions. This brief video from the American Geophysical Union is narrated by Thorbjorg Agustsdottir, a Ph.D. student studying volcanic seismology at the University of

Clues to magma viscosity and eruptions 

Earth Learning Idea [2014-09-08 20:21:00]  recommend  recommend this post  (19 visits) info
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'Bubble-mania; the bubbling clues to magma viscosity and eruptions' is this week's Earthlearningidea. After trying the activity, ask the pupils:- • How were the ‘eruptions’ different?• How were the bubbles different?• What caused the differences?• Some volcanoes have magmas that are ‘runny’ (like the soft drink) and some have much more viscous magmas (like the other liquid) – how might

Oregon's Mount Hood Rumbles. 

Volcano Science And News Blog [2014-09-08 16:45:00]  recommend  recommend this post  (55 visits) info

 CA,US
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Oregon's Mount Hood, one of the famed Cascades volcanoes, has produced a few shallow earthquakes below the summit. What this means is uncertain, but it is probably typical of the volcano. Mt Hood last erupted in 1866 although there are some unconfirmed reports of eruptions in the very early 1900's. A magnitude 2.6 quake occurred below the summit at 3.7km depth, and a much shallower 2.1 one at 0.9km depth. There are currently no reports on these quakes at CVO or USGS.At this time it is unlikely [...]

Iceland’s Bárðarbunga volcano alert raised to level orange 

Climate and Geohazards [2014-08-19 23:41:11]  recommend  recommend this post  (19 visits) info

 IS,
Volcanic and seismic activity on the island nation of Iceland is nothing new. However as the 2010 eruption of Eyjafjallajökull showed, eruptions in Iceland can have far reaching impacts on the rest of Europe. The 2010 Eyjafjallajökull eruption threw up … Continue reading

Iceland's Bárðarbunga Volcano Alert Raised After Quake Swarm 

Volcano Science And News Blog [2014-08-18 16:39:00]  recommend  recommend this post  (77 visits) info

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An ongoing volcano-tectonic quake swarm in Bárðarbunga in Iceland has prompted the Icelandic Meteorological Office to raise it's alert status to Yellow, and today, it was raised to Orange. Hundreds of quakes, some above magnitude 3.0 have occurred under the glacier. GPS instrumentation is detecting upward-and-outward movement, suggesting magma dike intrusion, and potentially signaling the beginning of eruptive activity. So far, no visible signs of an eruption have been detected, but [...]

There’s (volcanic) dust in the archives 

volcanicdegassing [2014-08-14 11:19:12]  recommend  recommend this post  (25 visits) info
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There’s not much that beats the thrill of discovery.. particularly when it turns up in your own backyard.  This summer, I have been on the hunt for records and reports of the 1902 eruptions of St Vincent, a lush volcanic island in the Eastern Caribbean. There are indeed many reports from this eruption, carefully documented in

Io Blasts Lava Hundreds of Miles Above Surface 

Geology.com News [2014-08-06 08:11:30]  recommend  recommend this post  (35 visits) info
NASA has published new images of volcanic activity on Jupiter’s moon Io from August 2013. Eruptions powerful enough to launch hot material hundreds of miles above the surface of the moon are believed to have

Outburst Flooding From Katla Volcano Iceland 

Volcano Science And News Blog [2014-07-11 20:28:00]  recommend  recommend this post  (26 visits) info

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It appears that Katla Volcano in Iceland, under the Myrdalsjökull ice glacier is experiencing heightened activity. Fellow volcano blogger Jon Frimann has posted that Iceland has raised the alert level to 'uncertain', as glacial outburst floods or 'jökulhlaups' have been occurring, in conjunction with rising conductivity levels in rivers, as well as gaseous hazards being reported.Katla volcano had a minor eruption following the now-famous eruption of Eyjafjallajökull in 2010.Current [...]

Eruptions at Etna 

Geology.com News [2014-06-18 14:54:35]  recommend  recommend this post  (23 visits) info

 IT
An eruption at Mount Etna, Italy’s most active volcano, is interrupting flights into and out of Catania. Related: Mount Etna

New study finds signs of new eruptions deep on the Reykjanes Ridge 

Iceland Volcano and Earthquake blog [2014-05-31 15:59:33]  recommend  recommend this post  (38 visits) info

 IS
In the Icelandic news today there is a article about new study on the deep Reykjanes Ridge. According to that that study an eruption took place deep on the Reykjanes Ridge sometimes in the past 20 years. Following … Continue reading

Friday Field Photo – St Vincent, 1902 

volcanicdegassing [2014-05-30 10:21:24]  recommend  recommend this post  (16 visits) info

 JM,US
Today’s field photo is by Tempest Anderson, of the ‘Roseau Dry River flowing with Boiling Mud’, a picture taken in the aftermath of the May 1902 eruptions of the Soufrière of St Vincent.  The full published caption explains the origins of this boiling mud – a phenomenon we now call a lahar: ‘This is a small stream

The rate of eruptions in Iceland 

Iceland Volcano and Earthquake blog [2014-05-29 14:52:24]  recommend  recommend this post  (31 visits) info

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It is a common misconception that eruptions take place in Iceland every 4 to 5 years. That is the average number of years between eruptions. The actual picture of the eruption rate in Iceland is far from this … Continue reading

Science Snap (#25): Vesuvius, Andy Warhol 

Between a Rock and a Hard Place [2014-04-21 09:45:37]  recommend  recommend this post  (14 visits) info
Quite simply, volcanoes are inspiring. I’ve yet to meet someone who disagrees. The majestic volcanic landscape has thus been an inspiration to many an artist and author, whether intentional or not. Furthermore, artwork itself can be a valuable tool to help decipher and understand eruptions and their effects on the climate. Pictured here is Vesuvius

Comments are Saved! 

Eruptions [2014-03-28 20:27:13]  recommend  recommend this post  (29 visits) info
If you remember back a few weeks, there was concern that the update to Wired’s publishing software was going to mean all old comments might be deleted. Well, I have good news: that isn’t going to happen. This weekend, the

Guest Post: Remembering When Mauna Loa Last Awoke: The Last Resort (Part 3) 

Eruptions [2014-03-27 16:54:05]  recommend  recommend this post  (11 visits) info

 US,NZ,IN
And now, the exciting conclusion to Zahra Hirji’s retrospective on the 1984 eruption of Hawaii’s Mauna Loa. Be sure to check out Part 1 and Part 2 if you haven’t! ———- Remembering When Mauna Loa Last Awoke: The Last Resort

Guest Post: Remembering When Mauna Loa Last Awoke: Damage Begins, Tempers Flare (Part 2) 

Eruptions [2014-03-26 18:59:41]  recommend  recommend this post  (16 visits) info

 US
Thirty years ago, Mauna Loa erupted. This is part two of a 3-part retrospective on the volcano's last eruption, by guest blogger Zahra

GuestPost: Remembering When Mauna Loa Last Awoke: The First 24 Hours (Part 1) 

Eruptions [2014-03-25 17:31:09]  recommend  recommend this post  (13 visits) info

 US,IN
Thirty years ago, Mauna Loa awoke, sending fountains of lava into the Hawaiian sky. Here's what the first 24 hours were

Eruption Update for March 19, 2014: Hekla, Copahue and Cerro Negro de Mayasquer 

Eruptions [2014-03-19 21:58:10]  recommend  recommend this post  (51 visits) info

 IS,AR
Been rather quiet on the active eruption front over the last few weeks, but that doesn’t mean there aren’t volcanoes rumblings worldwide. Iceland The media had fun with a statement by Páll Einarsson that Hekla in Iceland is “ready to erupt”. Apparently this

Iceland's Hekla Volcano Could Erupt Soon 

Volcano Science And News Blog [2014-03-18 15:44:00]  recommend  recommend this post  (38 visits) info

 IS
While Iceland has enjoyed a couple years now of near silence from its restive volcanoes, that may soon come to an end with the awakening of it's most active and dangerous volcano, Hekla. While there is no indication seismically that the volcano is due for imminent eruption, scientists say that the magma chamber is full, and primed for eruption at any time. Hekla volcano is not known to give much advanced warning when it erupts, like some of its neighbors. Indeed, most eruptions from Hekla have [...]

How Tall Are Eruptions on Io and Venus? 

Eruptions [2014-03-17 16:42:45]  recommend  recommend this post  (18 visits) info
Earth isn't the only volcanic body in the solar system. For starters, Io, one of Jupiter's moons, has eruptions of epic
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