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General Volcanic Activity Thread!

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bobbydog Maestro

bobbydog

Posted
  • Location: Horsham, West sussex, 52m asl
  • Location: Horsham, West sussex, 52m asl
Posted

still going...

Posted Image Skip to navigation.

Langjökull - earthquakes during the last 48 hours

(Preliminary results)

Earthquake location 18 Jun 15:05 GMT

Posted ImagePosted Image

Time and magnitude of earthquake 18 Jun 15:05 GMT

Posted Image

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karyo Maestro

karyo

Posted
  • Location: Brighton (currently)
  • Location: Brighton (currently)
Posted (edited)

still going...

Posted Image Skip to navigation.

Langjökull - earthquakes during the last 48 hours

(Preliminary results)

Earthquake location 18 Jun 15:05 GMT

Posted ImagePosted Image

Time and magnitude of earthquake 18 Jun 15:05 GMT

Posted Image

Do we know anything about the past eruptions of this volcano?

Edited by karyo
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bobbydog Maestro

bobbydog

Posted
  • Location: Horsham, West sussex, 52m asl
  • Location: Horsham, West sussex, 52m asl
Posted

Do we know anything about the past eruptions of this volcano?

Prestahnukur Volcano - John Seach

Posted Image Iceland

64.60 N, 20.58 W

summit elevation 1390 m

Subglacial volcano

Prestahnukur Volcano is located in SW Iceland, at SW end of the Langjökull icecap. Skjaldbreidur shield volcano formed at southern end of the volcanic system.

The volcano has hot springs.

Prestahnukur Volcano Eruptions

Eruptions 7550 BC ± 500.

Quick Links

a bit more -

Prestahnukur

Start Date: 3350 BC (?) Stop Date: Unknown Dating Technique: Tephrochronology

Volcanic Explosivity Index (VEI): 0

Lava Volume: 9 x 108 m3

Area of Activity: Sköflungur

Eruptive Characteristics:

Central vent eruption

Lava flow(s)

Start Date: 6950 BC (?) Stop Date: Unknown Dating Technique: Radiocarbon (corrected)

Volcanic Explosivity Index (VEI): 0

Lava Volume: 1.5 x 109 m3

Area of Activity: Geitlandshraun II

Eruptive Characteristics:

Central vent eruption

Lava flow(s)

Lava lake eruption

Start Date: 7550 BC ± 500 years Stop Date: Unknown Dating Technique: Radiocarbon (uncorrected)

Volcanic Explosivity Index (VEI): 0

Lava Volume: 1.1 x 1010 m3

Area of Activity: Skjaldbreidur

Eruptive Characteristics:

Central vent eruption

Lava flow(s)

Lava lake eruption

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karyo Maestro

karyo

Posted
  • Location: Brighton (currently)
  • Location: Brighton (currently)
Posted

Thanks Bobbydog,

so we potentially have the awakening of another prehistoric volcano! Very interesting!

Karyo

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bobbydog Maestro

bobbydog

Posted
  • Location: Horsham, West sussex, 52m asl
  • Location: Horsham, West sussex, 52m asl
Posted

Thanks Bobbydog,

so we potentially have the awakening of another prehistoric volcano! Very interesting!

Karyo

apparently, jon frimann is going to write about it in his blog later - should be interesting, hopefully he can give some more info on the volcano

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karyo Maestro

karyo

Posted
  • Location: Brighton (currently)
  • Location: Brighton (currently)
Posted

apparently, jon frimann is going to write about it in his blog later - should be interesting, hopefully he can give some more info on the volcano

I'll check his blog later. I suppose very little is known about volcanoes that haven't erupted in hundreeds or thousands of years. Uncharted territory comes to mind.

Karyo

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bobbydog Maestro

bobbydog

Posted
  • Location: Horsham, West sussex, 52m asl
  • Location: Horsham, West sussex, 52m asl
Posted

The update on Jon Frimann blog is a bit underwhelming if yesterday's events got you a bit excited: http://www.jonfr.com/volcano/

Karyo

whats he looking at??? a few days ago??? this swarm started in the early hours of this morning and is centred on one spot, as was katla and the quakes have been as strong and more frequent than katla!!!

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karyo Maestro

karyo

Posted
  • Location: Brighton (currently)
  • Location: Brighton (currently)
Posted

whats he looking at??? a few days ago??? this swarm started in the early hours of this morning and is centred on one spot, as was katla and the quakes have been as strong and more frequent than katla!!!

Not sure why he mentions a few days ago. He is saying that this swarm doesn't necessarily suggest magma movements.

Karyo

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bobbydog Maestro

bobbydog

Posted
  • Location: Horsham, West sussex, 52m asl
  • Location: Horsham, West sussex, 52m asl
Posted

still going...

Time and magnitude of earthquake 18 Jun 19:05 GMT

Posted Image

apparently some of the quakes didn't happen!!

Time and magnitude of earthquake 19 Jun 08:15 GMT

Posted Image

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Argyllcraig Rookie

Argyllcraig

Posted
  • Location: Breasclete, Isle of Lewis
  • Weather Preferences: Loving the vaiety
  • Location: Breasclete, Isle of Lewis
Posted

The quakes are quite often removed or replaced as a result of human interpretation

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john pike Maestro

john pike

Posted
  • Location: west croydon (near lombard)
  • Location: west croydon (near lombard)
Posted (edited)

http://hisz.rsoe.hu/alertmap/woalert_read.php?edis=VA-20110620-31226-IDN

click on event description

Event type: Volcano Activity Date / time [uTC]: 20/06/2011 - 07:21:01

Country: Indonesia Area: Lake Batur

County / State: Bali

http://www.volcano.si.edu/reports/usgs/maps/indonesia.gif

Edited by john pike
  • Like 1
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karyo Maestro

karyo

Posted
  • Location: Brighton (currently)
  • Location: Brighton (currently)
Posted

Nebro is still smoking but it's a low level plume: http://www.sat24.com/en/et?ir=true

According to this BBC report http://www.bbc.co.uk/news/world-africa-13847054 many people in Ethiopia are sick from the gasses and dust. The prevailing wind is from the east which brings the volcanic dust from Erithrea.

Karyo

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coldfingers Enthusiast

coldfingers

Posted
  • Location: Bognor Regis West Sussex
  • Location: Bognor Regis West Sussex
Posted

Hmmmm. Katla seems to be very slow and steady if she is heading for an eruption soon. Another 1.7 quake not too long ago and too deep to be ice collapse. Still worth keeping an eye on I reckon as it looked like it had another harmonic spike on the tremor chart today. Not sure though as I am no expert of course

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The PIT Maestro

The PIT

Posted
  • Location: Sheffield South Yorkshire 160M Powering the Sheffield Shield
  • Weather Preferences: Any Extreme
  • Location: Sheffield South Yorkshire 160M Powering the Sheffield Shield
Posted

Some more info on Nebro here http://bigthink.com/blogs/eruptions/

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