11/7/2023 0 Comments Lava flow iceland![]() ![]() IMO also reported that gas emissions were ongoing, though with low concentrations of eruptive gases. The seismic swarm had significantly decreased by mid-October and on 18 October the ACC was lowered to Yellow (the second lowest level on a four-color scale). According to news reports, over 6,000 earthquakes at depths of 5-6 km were recorded by 4 October, the largest event of which was an Mw 3.8. Nighttime incandescence was visible through 4 October, likely from lava flows that continued to advance downslope. ![]() ![]() The area of the flow field was about 4.85 km 2, and the total volume erupted was 150 million cubic meters, based on 30 September measurements. The Institute of Earth Sciences reported that lava effusion had stopped during the evening of 18 September 2021. This report covers a new eruption period that began on 3 August 2022 using information from the Icelandic Meteorological Office (IMO), the Institute of Earth Sciences, and various satellite data.Īctivity during October 2021-29 July 2022. Several fissure vents opened along a NE-SW trend, accompanied by gas-and-steam emissions, spatter, and lava fountains flows began to fill Geldingadalur and eventually reached the Meradalir valley. The fissure eruption that started in March 2021 in the Geldingadalur (also referred to as Geldingadalir) valley continued until mid-September 2021 (BGVN 46:05 46:10). Although the Fagradalsfjall fissure swarm has previously been considered a split or secondary swarm of the Krýsuvík-Trölladyngja volcanic system, as of September 2022 Icelandic volcanologists managing the Catalogue of Icelandic Volcanoes made the decision to identify Fagradalsfjall as a distinct and separate system. This was the first volcanic activity on the system after about 6,000 years of quiescence. The Fagradalsfjall volcanic system on the Reykjanes Volcanic Zone in Iceland erupted on 19 March 2021, following more than a year of earthquake activity and inflation/deflation periods. New eruption during August 2022 consisted of lava fountains and flows Most Recent Bulletin Report: September 2022 (BGVN 47:09) Cite this Report ![]() Sources: Icelandic Meteorological Office (IMO), Icelandic National Broadcasting Service (RUV), Icelandic National Broadcasting Service (RUV) Activity was last seen on 5 August and a thermal anomaly in the crater was last identified in satellite images on 6 August. The crater had become deeper and smaller by 4 August. Gas plumes had typically risen 1-2 km above the vent, though on 1 August plumes rose more than 2.5 km, and according to news articles, a notable amount of fume rose from the vent on 4 August. Tremor had decreased during the previous 36 hours and reached background levels by 1500 on 5 August. Five guides will lead the group on the 13-15 hour hike.Ĭlick here to read about risk factors and safety guidelines for traveling near the eruption.Most Recent Weekly Report: 2 August-8 August 2023 Cite this ReportĪt 1706 on 5 August IMO lowered the Aviation Color Code for Fagradalsfjall to Yellow (the second level on a four-color scale), noting that the eruption had declined during the previous few days and very minor activity at the crater was visible in webcam images. Travel association Útivist is offering a guided hiking tour to the source of the eruption on Fimmvörduháls tomorrow. Search and rescue team members will be on watch in the area throughout the weekend. People are asked not to go too close to the lava fall and take every precaution. Search and rescue teams had to evacuate the area temporarily. Large rocks almost hit some tourists in the head when they came flying out of Hvannárgil where the lava hit ice and snow and caused steam explosions. Hvannárgil is approximately five kilometers long, so it will take the lava flow a long time to reach Thórsmörk.Ĭlick here to watch a video footage from RÚV by Vilhjálmur Thór Gudmundsson of the lava flow in Hvannárgil and here to watch a video from Hrunagil by Thór Aegisson.Ĭlose to 200 people traveled near the eruption zone today. Hvanná runs into Thórsmörk shortly after the crossroads at Langidalur valley, much more further out than the Hrunaá river of the Hrunagil canyon. That development caused local authorities and search and rescue services to abort their plans for opening the road into the valley of Thórsmörk. This change seems to have occurred today in the morning when steam clouds were spotted in Hvannárgil, ruv.is reports.Īt the same time the water flow in the Hvanná river, after which the canyon is named, increased. A new 100-meter high lava fall has formed. Now all of the lava flows down the Hvannárgil canyon instead of the Hrunagil canyon. The lava from the crater on Fimmvörduháls mountain pass in south Iceland has suddenly changed channels. ![]()
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