Iceland: 1,400 Earthquakes Strike In 24 Hours, Amid Possibly Volcanic Eruption
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Grindavik, Iceland is facing a declared state of emergency after thousands of earthquakes struck. The earthquakes point to a potential likelihood of a volcanic eruption. Iceland President Guðni Th. Jóhannesson told the public, “We are still in the middle of this, but what we are grateful for is that there have been no casualties. There have been enormous damage to houses and structures.” So far, the Icelandic Met Office has reported around 1,400 earthquakes in a 24 hour span, in the video published on Nov 12, 2023, by LiveNOW from FOX, as “Iceland: 1,400 earthquakes strike in 24 hours, amid possibly volcanic eruption | LiveNOW from FOX“, below:
An update for Sun, Nov 12, 2023 from geology professor Shawn Willsey. After a quick review of the latest data, we discuss the difficult “wait and see” game. Also, I outline four possible scenarios that could play out near Grindavik before looking back at 2018 eruption in Hawaii as comparison. Stay strong, Iceland! In the video published on Nov 12, 2023, by Shawn Willsey, as “Icelandic Town Awaits Eruption and Possible Scenarios Discussed by Geologist“, below:
A second update for Sat, Nov 11, 2023 from geology professor Shawn Willsey. Here, we learn that the magma intrusion is only 800 m or less from the surface and the eruption is imminent in the next few hours or days. I also discuss possible eruption scenarios including an offshore eruption. Stay strong, Iceland! In the video published on Nov 11, 2023, by Shawn Willsey, as “Magma Close to Surface in Iceland: Eruption Within Hours Or Days: A Geologic Review“, below:
For more details on 2023 Iceland earthquakes, please refer to the excerpt from wikipedia, in italics, below:
A swarm of intense earthquakes in Reykjanes Peninsula, Iceland began on October 24, 2023, due to a magmatic intrusion underneath the area.[1] The frequency and intensity of the earthquakes dramatically increased 10 November, with 20,000 tremors recorded by November 10, the largest exceeding magnitude 5.1. An evacuation was ordered in the town of Grindavík, which is located near the area of the seismic activity.[1]
Although earthquakes are a frequent occurrence in Iceland due to the island being situated at the boundary of the Eurasian and North American tectonic plates, the recent swarm was noted for being more extensive than usual.[2] Three volcanic eruptions have occurred in the Reykjanes Peninsula since 2021.[2]
The Icelandic Meteorological Office (IMO, Icelandic: Veðurstofa Íslands) first reported the possibility of the formation of a magma intrusion near the active volcano Fagradalsfjall on the Reykjanes Peninsula in 13 October.[3] About 700 earthquakes were recorded earlier in the month, the largest reaching magnitude 3.3.[3]
24–30 October
An earthquake swarm began on the evening of 24 October due to the magmatic intrusion, with the intensity of the earthquakes decreasing by 30 October. Approximately 8,000 earthquakes were detected; most of these tremors occurred at a depth of 2–4 km.[1]
10–11 November
The largest of the earthquakes to date reached magnitude 5.1.[4] The seismic activity received significant coverage by the international media.[5] The IMO predicted that an eruption was likely, stating that “it will take several days (rather than hours) for magma to reach the surface.”[1]
The management of the Blue Lagoon announced the site’s closure to visitors from 9–16 November as a precaution following the earthquakes.[6] Panic was reported as lava rocks landed on roads in the area while 30 guests left the resort following a 4.8 tremor in the early hours of 9 November.[7]
Following the 5.1 earthquake on 10 November, many houses were damaged in Grindavík and a road north of the town was cracked and subsequently closed by police.[8][5] A large crack also appeared on the grounds of the town’s golf course.[9] A state of emergency was declared, and evacuation plans were put into effect for Grindavík that evening.[10] The Icelandic civil protection authority deployed the patrol boat Thor to the area “for safety purposes”.[11] It also closed all roads to Grindavik except for emergency and evacuation purposes.[12]
To better understand the Southern Peninsular of Iceland or Reykjanes volcanic system, please click HERE.
Gathered, written, and posted by Windermere Sun-Susan Sun Nunamaker More about the community at www.WindermereSun.com
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