Volcanic Iceland: Earthquake with magnitude M 5,2 in Þorbjörn mountain (Fagradalsfjall mountain)!!!p1492 | |
Anonymous Coward User ID: 77153783 Portugal 11/27/2018 12:09 PM Report Abusive Post Report Copyright Violation | Re: Volcanic Iceland: Earthquake with magnitude M 5,2 in Þorbjörn mountain (Fagradalsfjall mountain)!!!p1492 Páll Einarsson* Institute of Earth Sciences, University of Iceland, Reykjavík, Iceland Networks of seismographs of high sensitivity have been in use in the vicinity of active volcanoes in Iceland since 1973. During this time, 21 confirmed eruptions have occurred and several intrusions where magma did not reach the surface. All these events have been accompanied by characteristic seismic activity. Long-term precursory activity is characterized by low-level, persistent seismicity (months-years), clustered around an inflating magma body. Whether or not a magma accumulation is accompanied by seismicity depends on the tectonic setting, interplate or intraplate, the depth of magma accumulation, the previous history and the state of stress. All eruptions during the time of observation had a detectable short-term seismic precursor marking the time of dike propagation toward the surface. The precursor times varied between 15 min and 13 days. In half of the cases the precursor time was <2 h. Three eruptions stand out for their unusually long duration of the immediate seismic precursory activity, Heimaey 1973 with 30 h, Gjálp 1996 with 34 h, and Bárðarbunga 2014 with 13 days. In the case of Heimaey the long time is most likely the consequence of the great depth of the magma source, 15–25 km. The Gjálp eruption had a prelude that was unusual in many respects. The long propagation time may have resulted from a complicated triggering scenario involving more than one magma chamber. The Bárðarbunga eruption at Holuhraun issued from the distal end of a dike that took 13 days to propagate laterally for 48 km before it opened to the surface. Out of the 21 detected precursors 14 were noticed soon enough to lead to a public warning of the coming eruption. In four additional cases the precursory signal was noticed before the eruption was seen. In only three cases was the eruption seen or detected before the seismic precursor was verified. In general, eruptions are preceded by identifyable short-term seismic precursors that, under favorable conditions, may be used for pre-eruption warnings. In some cases, however, the time may be too short to be useful. The Hekla volcano stands out for its short precursory times. ... [link to www.frontiersin.org (secure)] |
Anonymous Coward User ID: 77167041 Portugal 12/01/2018 03:14 PM Report Abusive Post Report Copyright Violation | Re: Volcanic Iceland: Earthquake with magnitude M 5,2 in Þorbjörn mountain (Fagradalsfjall mountain)!!!p1492 Two earthquake swarms in Öræfajökull volcano Posted on December 1, 2018 by Jón Frímann Today (1-December-2018) two earthquake swarm took place in Öræfajökull volcano. Largest earthquakes in this two earthquake swarms had magnitude of 1,1. All other earthquakes are smaller in magnitude. What is unusual now is that there are two earthquake swarms happening in Öræfajökull volcano. In last few months only one area has been having earthquakes at time. It is worth keeping a eye out for this change if it holds. [link to www.jonfr.com] |
Anonymous Coward User ID: 77167041 Portugal 12/02/2018 01:56 PM Report Abusive Post Report Copyright Violation | Re: Volcanic Iceland: Earthquake with magnitude M 5,2 in Þorbjörn mountain (Fagradalsfjall mountain)!!!p1492 Hekla: [link to www.volcanocafe.org (secure)] |
Anonymous Coward User ID: 77167041 Portugal 12/02/2018 02:47 PM Report Abusive Post Report Copyright Violation | Re: Volcanic Iceland: Earthquake with magnitude M 5,2 in Þorbjörn mountain (Fagradalsfjall mountain)!!!p1492 Jesper Sandberg 02/12/2018 at 19:16 The network is more sensitive now than it was in 2000 s Hekla is not a frequent erupter, we may still wait many years maybe 100 s of years for an eruption to arrive. Reply Carl Carl 02/12/2018 at 19:18 I can with a high degree of certainty state that this will not be the case Jesper. Reply mjf 02/12/2018 at 19:33 Do you think it will go off before the new year? Reply Carl Carl 02/12/2018 at 19:39 It’s not impossible. As it is looking now it could go off in a few hours. But, it could also go off in months or years away. |
Anonymous Coward User ID: 77167041 Portugal 12/02/2018 03:44 PM Report Abusive Post Report Copyright Violation | Re: Volcanic Iceland: Earthquake with magnitude M 5,2 in Þorbjörn mountain (Fagradalsfjall mountain)!!!p1492 OT: HVO has spoken, and listed the possibilities for what’s next at Kilauea: “New summit lava lake, resumption of eruption at Pu‘u ‘Ō‘ō, lava flows in Puna, further summit collapses, explosive eruptions from the summit, eventual collapse of the entire summit, renewal of caldera filling with lava eventually overtopping the caldera rim, decreased magma supply so that the quiet lingers for years, increased magma supply so that the quiet ends in months, resumption of Mauna Loa activity…or something else?” |
Anonymous Coward User ID: 64186280 Portugal 12/03/2018 05:11 AM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 64186280 Portugal 12/03/2018 05:13 AM Report Abusive Post Report Copyright Violation | Re: Volcanic Iceland: Earthquake with magnitude M 5,2 in Þorbjörn mountain (Fagradalsfjall mountain)!!!p1492 There is an increased seismic activity of Vesuvius. About 20 earthquakes per last two days and slightly deeper then usually. [link to portale2.ov.ingv.it] |
Anonymous Coward User ID: 64186280 Portugal 12/04/2018 09:38 AM Report Abusive Post Report Copyright Violation | Re: Volcanic Iceland: Earthquake with magnitude M 5,2 in Þorbjörn mountain (Fagradalsfjall mountain)!!!p1492 Earthquake activity in Þórðarhyrna volcano (Thordarhyrna) Posted on December 3, 2018 by Jón Frímann During the night of 3-December-2018 earthquake activity started in Þórðarhyrna volcano (no GVP profile, under Grímsvötn volcano profile). Largest earthquake in this swarm had a magnitude of 2,1 and second largest earthquake had a magnitude of 2,0. Last eruption in Þórðarhyrna volcano was in the year 1902 December to 1904 12-January and was a VEI=4 eruption. An eruption happened in Grímsvötn volcano at the same time. [link to www.jonfr.com] |
Anonymous Coward User ID: 75540859 Portugal 12/15/2018 06:41 PM Report Abusive Post Report Copyright Violation | Re: Volcanic Iceland: Earthquake with magnitude M 5,2 in Þorbjörn mountain (Fagradalsfjall mountain)!!!p1492 Eruptions have occurred of g. Soputan, in North Sulawesi on December 16, 2018 at 05:40: with high ash column observed CA. 7,000 m peaks (± 8,809 m above sea level). The column of ash gray with observed intensity thick leaning towards the Southwest Quoting: joinca [link to twitter.com (secure)] VONA Color Code : RED |
Anonymous Coward User ID: 77207567 Portugal 12/17/2018 03:23 AM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 77212248 Portugal 12/18/2018 07:45 AM Report Abusive Post Report Copyright Violation | Re: Volcanic Iceland: Earthquake with magnitude M 5,2 in Þorbjörn mountain (Fagradalsfjall mountain)!!!p1492 Quake swarm on Vatnajokull... [link to en.vedur.is (secure)] |
Anonymous Coward User ID: 77212248 Portugal 12/18/2018 03:14 PM Report Abusive Post Report Copyright Violation | |
bvb
User ID: 74884440 United States 12/20/2018 12:36 AM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 76600333 Portugal 12/20/2018 10:11 AM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 77224242 Portugal 12/23/2018 03:55 PM Report Abusive Post Report Copyright Violation | Re: Volcanic Iceland: Earthquake with magnitude M 5,2 in Þorbjörn mountain (Fagradalsfjall mountain)!!!p1492 [link to twitter.com (secure)] WOW!!! Another eruption of the mount #Etna #volcano, in Sicily, Italy this morning 23rd December. |
Anonymous Coward User ID: 77224242 Portugal 12/23/2018 04:14 PM Report Abusive Post Report Copyright Violation | |
bvb
User ID: 74884440 United States 12/23/2018 09:41 PM Report Abusive Post Report Copyright Violation | Re: Volcanic Iceland: Earthquake with magnitude M 5,2 in Þorbjörn mountain (Fagradalsfjall mountain)!!!p1492 More about Anak Krakatau volcano eruption/tsunami: [link to www.dailymail.co.uk (secure)] Never stop learning. |
Anonymous Coward User ID: 72008518 Portugal 12/24/2018 01:43 PM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 72008518 Portugal 12/25/2018 08:09 AM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 66688227 Portugal 12/27/2018 04:46 AM Report Abusive Post Report Copyright Violation | Re: Volcanic Iceland: Earthquake with magnitude M 5,2 in Þorbjörn mountain (Fagradalsfjall mountain)!!!p1492 The status of #Krakatau was increased to Level 3 (Orange/Siaga) as of this morning 27th December. The restriction zone have been extended to 5km from Anak-Krakatau. (2/2) 19:50 - 26 de dez de 2018 [link to twitter.com (secure)] |
Anonymous Coward User ID: 77239366 Portugal 12/28/2018 10:33 AM Report Abusive Post Report Copyright Violation | Re: Volcanic Iceland: Earthquake with magnitude M 5,2 in Þorbjörn mountain (Fagradalsfjall mountain)!!!p1492 28.12.2018 01:46:18 64.661 -17.438 1.4 km 2.8 99.0 4.8 km ENE of Bárðarbunga Friday 28.12.2018 01:38:17 64.663 -17.445 2.6 km 3.7 99.0 4.7 km ENE of Bárðarbunga Friday 28.12.2018 01:20:19 64.667 -17.443 0.1 km 3.5 99.0 5.0 km NE of Bárðarbunga Friday 28.12.2018 01:16:33 64.664 -17.451 0.1 km 4.8 99.0 4.5 km NE of Bárðarbunga |
doc P (miss)
User ID: 1380857 Netherlands 12/28/2018 05:18 PM Report Abusive Post Report Copyright Violation | |
doc P (miss)
User ID: 75430816 Netherlands 12/28/2018 05:21 PM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 77241577 Portugal 12/29/2018 06:12 AM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 77241577 Portugal 12/30/2018 04:27 AM Report Abusive Post Report Copyright Violation | Re: Volcanic Iceland: Earthquake with magnitude M 5,2 in Þorbjörn mountain (Fagradalsfjall mountain)!!!p1492 Sunday 30.12.2018 02:56:20 63.970 -21.335 5.9 km 4.4 99.0 2.5 km SSW of Skálafell [link to en.vedur.is (secure)] |
Anonymous Coward User ID: 77258218 Portugal 01/05/2019 12:23 PM Report Abusive Post Report Copyright Violation | Re: Volcanic Iceland: Earthquake with magnitude M 5,2 in Þorbjörn mountain (Fagradalsfjall mountain)!!!p1492 New cracks discovered at Anak Krakatau raise new landslide and tsunami fears, Indonesia Quoting: Luisport [link to twitter.com (secure)] |
Anonymous Coward User ID: 77284945 Portugal 01/13/2019 12:35 PM Report Abusive Post Report Copyright Violation | Re: Volcanic Iceland: Earthquake with magnitude M 5,2 in Þorbjörn mountain (Fagradalsfjall mountain)!!!p1492 CO2 earth @CO2_earth 🏆📈🏆 413.45 parts per million (ppm) #CO2 in atmosphere on January 12, 2019 🏵️🏵️ HIGHEST EVER daily average reported from Mauna Loa [link to twitter.com (secure)] |
Anonymous Coward User ID: 77284945 Portugal 01/13/2019 04:36 PM Report Abusive Post Report Copyright Violation | Re: Volcanic Iceland: Earthquake with magnitude M 5,2 in Þorbjörn mountain (Fagradalsfjall mountain)!!!p1492 CO2 earth Quoting: Luisport @CO2_earth 🏆📈🏆 413.45 parts per million (ppm) #CO2 in atmosphere on January 12, 2019 🏵️🏵️ HIGHEST EVER daily average reported from Mauna Loa [link to twitter.com (secure)] I found this thread on the topic: Peter Gleick @PeterGleick Jan 10 The most recent atmospheric CO2 reading is over 410 parts per million. The last time humans experienced 410 ppm was... never. Never. Humans hadn't evolved yet. [link to twitter.com (secure)] And this post: @anomaloushoward Meanwhile at Mauna Loa Volcano, deformation is beginning to trend a bit parabolically. [link to twitter.com (secure)] THIS IS WHAT WE DON'T WANT! |
Anonymous Coward User ID: 75795509 Sweden 01/14/2019 11:18 AM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 77311615 Portugal 01/23/2019 03:43 PM Report Abusive Post Report Copyright Violation | Re: Volcanic Iceland: Earthquake with magnitude M 5,2 in Þorbjörn mountain (Fagradalsfjall mountain)!!!p1492 Hawaii Quoting: joinca Big Island: New Steam Cracks Plague Residents In Eruption Zone 0 The superheated steam is killing trees and forcing some residents from their homes, although there’s “no sign of magma.” [link to twitter.com (secure)] [link to www.civilbeat.org (secure)] OMG! |