Eindelijk was ik weer net iets eerder dan jouquote:Op donderdag 4 mei 2023 12:30 schreef Houtenbeen het volgende:
Katla naar alert level geel, na meerdere lichte aardbevingen
quote:Strong earthquake swarm in Mýrdalsjökull
At 9.41 am this morning, a strong earthquake swarm started in Mýrdalsjökull glacier. First, but not conclusively verified, results show that three quakes have occurred above magnitude 4.4, with magnitudes 4.5, 4.3 and 4.2.
There have been about seven quakes ranging in magnitude from 3 to 4, the Icelandic Met Office reported.
No harmonic tremors have been detected.
The quakes are located in the center of the caldera. A flight alert colour code for Katla has been put on yellow.
quote:Activity summary:
Yesterday at 09:41 a sudden and intense seismic swarm started in Katla with three earthquakes of magnitude larger than 4 located in the middle of the caldera. Since yesterday afternoon the activity has decreased significantly and no other geophysical measurements show indicators of significant changes or anomalies. Katla is currently back to known background activity and the colour code is changed to green.
quote:Earthquakes Rocking Reykjanes Pointing To Another Eruption
A magnitude 4.0 earthquake woke late sleepers in central Reykjavík at 8:21 this morning. But, it’s residents of the Reykjanes peninsula that are likely a little worse for wear this morning, waking up from a long night of back to back quakes.
A tally from the Icelandic Met Office lists well over 1000 quakes that have struck the peninsula over the past days, with 21 larger than a magnitude of 3.0. The return of constant rumbling has geologists and volcanologists watching the area closely, with RÚV reporting that an eruption could be imminent at Fagradalsfjall.
The area last erupted at Geldingadalir in 2021 and Meradalir in 2022.
Volcanologist Þorvaldur Þórðarson told the radio station Bylgjan on Monday the land has been inflating under the entirety of the Reykjanes peninsula in recent weeks, signalling rising lava under the surface.
The rising land throughout the entirety of the peninsula – not just under the previous eruptions sites – also signals that the entire peninsula could be one giant active volcano rather than a chain of smaller volcanoes, as previously believed. In theory, that means that lava could begin erupting from any place on the Reykjanes peninsula.
Liever deze, dan b.v. de Katla.quote:Op woensdag 5 juli 2023 13:17 schreef Elan het volgende:
Stel dat dat kreng uitbarst, op wat voor schaal aan gevolgen moeten we dan denken? Wat hinder voor het vliegverkeer, of massa-evacuaties en/of (lokale) klimatologische ellende?
Ah ja dat vroeg ik me af of in augustus het dezelfde betrof. Zat dit verhaal te lezen laatst, wat een horrorgevolgen een grootschalige uitbarsting kan hebben wereldwijdquote:Op woensdag 5 juli 2023 16:04 schreef aloa het volgende:
[..]
Liever deze, dan b.v. de Katla.
Deze is vorig jaar ook al uitgebarsten..
quote:Earthquake swarm close to Eldey and Eldeyjarboða á Reykjanes ridge
It seems that sometimes in the last 24 hours an earthquake swarm started close to Eldey and Eldeyjarboða on the Reykjanes ridge. Largest earthquakes seems to be around Mw3,2 to Mw3,7 or in around that magnitude. Since it is close to impossible to see the earthquakes on the map in all the activity that is happening close to Keilir mountain.
Green stars out in the ocean is the activity on the Reykjanes ridge. There's a lot of activity on this map and the whole thing is a mess to read.
Heavy earthquake activity on the Reykjanes peninsula and Reykjanes ridge. Copyright of this image belongs to Icelandic Met Office.
I don’t know if this earthquake swarm is connected to what is happening in Fagradalsfjall mountain and Keilir mountain. It seems unlikely, but this activity might have been triggered by that earthquake swarm. What is going on there is unclear. Since this is out in the ocean.
Eldey is nu ook verhoogd naar geelquote:Op woensdag 5 juli 2023 16:10 schreef Houtenbeen het volgende:
Alert level voor Fagradalsfjall verhoogt naar oranje
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