Actividade Vulcânica 2017

Estado
Fechado para novas mensagens.
Strongest earthquakes in Bárðarbunga volcano since February 2015
Posted on October 27, 2017 by Jón Frímann
Yesterday (26-October-2017) and today (27-10-2017) two strongest earthquake took place in Báðarbunga volcano since end of the eruption in February 2015. The magnitudes of earthquakes so far are two Mw4.7, One magnitude Mw3,9 and one Mw3,2 earthquake. So far other earthquakes have been smaller in magnitude. No harmonic tremor has been detected so far, but given the location an eruption might start in other part of the caldera without warning even if the earthquake swarm activity is happening in the northern part of the Bárðarbunga volcano caldera.

At the moment no eruption has been detected. But this strong and increasing earthquake activity suggest that magma pressure inside Bárðarbunga volcano might be reaching critical point. If it has not reached critical point already. For the next 24 – 36 hours really bad weather is forecasted in Iceland. With wind gusts forecasted up to 45m/s in the highland and in northern Iceland. This bad weather is going to cause problems in detecting earthquakes in Bárðarbunga volcano and elsewhere.
http://www.jonfr.com/volcano/?p=7150

Friday
27.10.2017 00:16:39 64.673 -17.469 3.1 km 4.7 99.0 4.6 km NE of Bárðarbunga

Thursday
26.10.2017 23:26:31 64.664 -17.416 5.0 km 4.7 99.0 5.9 km ENE of Bárðarbunga

Thursday
26.10.2017 23:03:19 64.687 -17.475 0.1 km 3.2 99.0 5.7 km NNE of Bárðarbunga
Thursday
26.10.2017 23:02:07 64.684 -17.460 4.1 km 3.9 99.0 5.9 km NNE of Bárðarbunga
http://en.vedur.is/earthquakes-and-volcanism/earthquakes/vatnajokull/#view=map
 
  • Gosto
Reactions: Wessel1985, Dias Miguel e The Weatherman
Agung: nível de alerta desceu de IV para III em 29-10-2017:
https://magma.vsi.esdm.go.id/press/view.php?id=107

chart_stack-grafik_Agung_turun_status.png
 
  • Gosto
Reactions: Wessel1985, MSantos e The Weatherman
O Bardarbunga está bastante animado com vários sismos próximos da superfície. A acompanhar...
 
  • Gosto
Reactions: Wessel1985 e lserpa
G. Agung - Live stream das webcams com sismograma

 
  • Gosto
Reactions: luismeteo3
G. Agung - Live stream das webcams com sismograma

 
Yellow alert put up for Öræfajökull volcano

A new caldera, measuring a diameter of one kilometres has been formed in this last week in Öræfajökull glacier, a caldera spotted via satellite images of the glacier.

According to the Iceland Met Office this caldera shows increased activity in Öræfajökull which is located in Vatnajökull, Iceland's largest glacier.

A great sulphuric stench has eminated from the river Kvíá last week and is caused by increased geothermal activity within the caldera.

Increased seismic activity has occured in the area in recent months, activity which has subsided in recent days. The volcano hasn't erupted since 1727. There are still no signs of an imminent eruption states an announcement from the Met Office. However, the safety code has been put up to yellow.

http://icelandmonitor.mbl.is/news/n...yellow_alert_put_up_for_oraefajokull_volcano/
 
  • Gosto
Reactions: Wessel1985 e Dias Miguel
Dated 16. November

Sulphur smell from Kvíá glacier river that comes from Öræfajökull volcano

Today (16-November-2017) it was reported that sulphur smell was felt from a glacier river that comes from Öræfajökull volcano. The glacier river in question is called Kvíá and is a small and short glacier rivers on the south side. Currently there are no conductivity measurements on the glacier rives that comes from Öræfajökull volcano. The plan is that such measurements are going to start soon around Öræfajökull volcano. Along with gas measurements.

This change suggests that a hydrothermal systems have opened up somewhere under the glacier in Öræfajökull volcano. This means that magma has now reached depth of 1 km or less. For the past few days the earthquake activity in Öræfajökull volcano has been getting lower then during the last few weeks when up to 50 earthquakes was being recorded during each week. Earthquake activity continues today, but at much lower rates than before at the moment.
 
  • Gosto
Reactions: Wessel1985 e Dias Miguel
Estado
Fechado para novas mensagens.
Topo Bottom