{"id":1820217,"date":"2023-11-15T14:19:41","date_gmt":"2023-11-15T19:19:41","guid":{"rendered":"https:\/\/www.maproomblog.com\/?p=1820217"},"modified":"2023-11-15T14:19:41","modified_gmt":"2023-11-15T19:19:41","slug":"earthquake-swarms-and-an-imminent-eruption-in-iceland","status":"publish","type":"post","link":"https:\/\/www.maproomblog.com\/2023\/11\/earthquake-swarms-and-an-imminent-eruption-in-iceland\/","title":{"rendered":"Earthquake Swarms and an Imminent Eruption in Iceland"},"content":{"rendered":"<figure id=\"attachment_1820218\" aria-describedby=\"caption-attachment-1820218\" style=\"width: 760px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/en.vedur.is\/about-imo\/news\/a-seismic-swarm-started-north-of-grindavik-last-night\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"1820218\" data-permalink=\"https:\/\/www.maproomblog.com\/2023\/11\/earthquake-swarms-and-an-imminent-eruption-in-iceland\/earthquake-swarm-iceland-2023\/\" data-orig-file=\"https:\/\/www.maproomblog.com\/xq\/wp-content\/uploads\/2023\/11\/earthquake-swarm-iceland-2023.jpg\" data-orig-size=\"1540,760\" data-comments-opened=\"0\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"earthquake-swarm-iceland-2023\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/www.maproomblog.com\/xq\/wp-content\/uploads\/2023\/11\/earthquake-swarm-iceland-2023-300x148.jpg\" data-large-file=\"https:\/\/www.maproomblog.com\/xq\/wp-content\/uploads\/2023\/11\/earthquake-swarm-iceland-2023-1024x505.jpg\" class=\"wp-image-1820218 size-large\" src=\"https:\/\/www.maproomblog.com\/xq\/wp-content\/uploads\/2023\/11\/earthquake-swarm-iceland-2023-1024x505.jpg\" alt=\"Two maps showing geological deformation in Reykjanes Peninsula, Iceland, from the Icelandic Meteorological Office.\" width=\"760\" height=\"375\" srcset=\"https:\/\/www.maproomblog.com\/xq\/wp-content\/uploads\/2023\/11\/earthquake-swarm-iceland-2023-1024x505.jpg 1024w, https:\/\/www.maproomblog.com\/xq\/wp-content\/uploads\/2023\/11\/earthquake-swarm-iceland-2023-300x148.jpg 300w, https:\/\/www.maproomblog.com\/xq\/wp-content\/uploads\/2023\/11\/earthquake-swarm-iceland-2023-150x74.jpg 150w, https:\/\/www.maproomblog.com\/xq\/wp-content\/uploads\/2023\/11\/earthquake-swarm-iceland-2023-1536x758.jpg 1536w, https:\/\/www.maproomblog.com\/xq\/wp-content\/uploads\/2023\/11\/earthquake-swarm-iceland-2023-940x464.jpg 940w, https:\/\/www.maproomblog.com\/xq\/wp-content\/uploads\/2023\/11\/earthquake-swarm-iceland-2023-811x400.jpg 811w, https:\/\/www.maproomblog.com\/xq\/wp-content\/uploads\/2023\/11\/earthquake-swarm-iceland-2023.jpg 1540w\" sizes=\"auto, (max-width: 760px) 100vw, 760px\" \/><\/a><figcaption id=\"caption-attachment-1820218\" class=\"wp-caption-text\">Icelandic Meteorological Office<\/figcaption><\/figure>\n<p>A <a href=\"https:\/\/en.wikipedia.org\/wiki\/Earthquake_swarm\">swarm<\/a> of thousands of earthquakes have been recorded on Iceland\u2019s Reykjanes Peninsula <a href=\"https:\/\/en.wikipedia.org\/wiki\/2023_Iceland_earthquakes\">over the past three weeks<\/a>. It\u2019s a strong indication that a volcanic eruption is imminent. The town of <a href=\"https:\/\/en.wikipedia.org\/wiki\/Grindav\u00edk\">Grindav\u00edk<\/a> has been evacuated as a result. The Icelandic Meteorological Office has <a href=\"https:\/\/en.vedur.is\/about-imo\/news\/a-seismic-swarm-started-north-of-grindavik-last-night\">a page with updates and maps<\/a> of earthquakes and ground deformation from the magmatic intrusion (examples above). <a href=\"https:\/\/earthquakeinsights.substack.com\/p\/volcanic-earthquakes-in-iceland\">A post on Earthquake Insights<\/a> has more maps, plus geological and historical context.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A swarm of thousands of earthquakes have been recorded on Iceland\u2019s Reykjanes Peninsula over the past three weeks. It\u2019s a strong indication that a volcanic eruption is imminent. The town of Grindav\u00edk has been evacuated&hellip; <a href=\"https:\/\/www.maproomblog.com\/2023\/11\/earthquake-swarms-and-an-imminent-eruption-in-iceland\/\">More<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"link","meta":{"autoblue_enabled":true,"autoblue_custom_message":"","autoblue_shares":[],"autoblue_post_url":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[846],"tags":[130,1641,1640,1642,682],"class_list":["post-1820217","post","type-post","status-publish","format-link","hentry","category-disasters","tag-earthquakes","tag-grindavik","tag-iceland","tag-reykjanes","tag-volcanoes","post_format-post-format-link"],"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":1827287,"url":"https:\/\/www.maproomblog.com\/2024\/02\/satellite-imagery-of-the-eruption-near-grindavik\/","url_meta":{"origin":1820217,"position":0},"title":"Satellite Imagery of the Eruption Near Grindav\u00edk","author":"Jonathan Crowe","date":"9 February 2024","format":"link","excerpt":"The Copernicus-2A satellite imaged the smoke plume and lava flow from the eruption of the Fagradalsfjall volcano near Grindav\u00edk, Iceland yesterday; Marco Langbroek processed natural-colour and short-wave infrared imagery to achieve the above image, which he posted to Bluesky. [Kottke] Previously: Earthquake Swarms and an Imminent Eruption in Iceland.","rel":"","context":"In &quot;Disasters&quot;","block_context":{"text":"Disasters","link":"https:\/\/www.maproomblog.com\/category\/disasters\/"},"img":{"alt_text":"Satellite image of the smoke plume and lava flow from the eruption of the Fagradalsfjall volcano near Grindav\u00edk, Iceland, taken on 8 Feb 2024 and processed by Marco Langbroek.","src":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2024\/02\/grindavik-copernicus-sentinel-langbroek-1024x725.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2024\/02\/grindavik-copernicus-sentinel-langbroek-1024x725.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2024\/02\/grindavik-copernicus-sentinel-langbroek-1024x725.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2024\/02\/grindavik-copernicus-sentinel-langbroek-1024x725.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":1785574,"url":"https:\/\/www.maproomblog.com\/2018\/05\/mapping-the-2018-kilauea-eruption\/","url_meta":{"origin":1820217,"position":1},"title":"Mapping the 2018 K\u012blauea Eruption","author":"Jonathan Crowe","date":"10 May 2018","format":"link","excerpt":"Last week new lava vents opened in the K\u012blauea volcano's eastern rift zone, with fissures destroying a number of homes in the Leilani Estates subdivision of the island of Hawai\u2018i's Puna District. Here are some maps. The\u00a0Washington Post\u2019s coverage is typically first rate, its maps providing both detailed coverage and\u2026","rel":"","context":"In &quot;Disasters&quot;","block_context":{"text":"Disasters","link":"https:\/\/www.maproomblog.com\/category\/disasters\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2018\/05\/usgs-kilauea-fissures-9may18-1024x783.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2018\/05\/usgs-kilauea-fissures-9may18-1024x783.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2018\/05\/usgs-kilauea-fissures-9may18-1024x783.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2018\/05\/usgs-kilauea-fissures-9may18-1024x783.jpg?resize=700%2C400 2x"},"classes":[]},{"id":1807131,"url":"https:\/\/www.maproomblog.com\/2022\/05\/updates-to-maps-of-historical-earthquakes-tsunami-and-volcanic-eruptions\/","url_meta":{"origin":1820217,"position":2},"title":"Updates to Maps of Historical Earthquakes, Tsunami and Volcanic Eruptions","author":"Jonathan Crowe","date":"1 May 2022","format":"link","excerpt":"Every two years or so, NOAA\u2019s National Centers for Environmental Information updates poster maps based on its Global Historical Tsunami, Significant Earthquake and Significant Volcanic Eruption databases; the 2022 editions are now available. The posters, made in collaboration with the International Tsunami Information Center, are distributed to emergency response personnel;\u2026","rel":"","context":"In &quot;Disasters&quot;","block_context":{"text":"Disasters","link":"https:\/\/www.maproomblog.com\/category\/disasters\/"},"img":{"alt_text":"Significant Earthquakes 2150 B.C. to A.D. 2022 (NOAA\/NCEI)","src":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2022\/05\/significant-earthquakes-1024x701.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2022\/05\/significant-earthquakes-1024x701.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2022\/05\/significant-earthquakes-1024x701.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2022\/05\/significant-earthquakes-1024x701.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":1836156,"url":"https:\/\/www.maproomblog.com\/2025\/01\/a-map-of-polar-bears-in-iceland-where-they-dont-belong\/","url_meta":{"origin":1820217,"position":3},"title":"A Map of Polar Bears in Iceland, Where They Don\u2019t Belong","author":"Jonathan Crowe","date":"24 January 2025","format":"link","excerpt":"N\u00e1tt\u00farufr\u00e6\u00f0istofnun \u00cdslands The Icelandic Institute of Natural History has mapped every known appearance of polar bears in Iceland: \u201cPolar bears are not native to Iceland, although they do occasionally turn up in Iceland and are thus classified as vagrants. Information exists on just over 600 polar bears recorded as having\u2026","rel":"","context":"In &quot;Wildlife&quot;","block_context":{"text":"Wildlife","link":"https:\/\/www.maproomblog.com\/category\/wildlife\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2025\/01\/polar-bears-iceland.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2025\/01\/polar-bears-iceland.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2025\/01\/polar-bears-iceland.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2025\/01\/polar-bears-iceland.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2025\/01\/polar-bears-iceland.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2025\/01\/polar-bears-iceland.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":1784823,"url":"https:\/\/www.maproomblog.com\/2018\/01\/earthquakes-in-new-zealand\/","url_meta":{"origin":1820217,"position":4},"title":"Earthquakes in New Zealand","author":"Jonathan Crowe","date":"18 January 2018","format":"link","excerpt":"Charlie Mitchell has made a time-lapse map showing earthquakes in New Zealand over the past decade\u00a0(January 2008 to December 2017), scaled by magnitude. On Twitter he explains that he excluded earthquakes less than 3.0 magnitude\u00a0but still ended up with around 20,000 of them. Simple, without a lot of supporting information,\u2026","rel":"","context":"In &quot;Geology&quot;","block_context":{"text":"Geology","link":"https:\/\/www.maproomblog.com\/category\/geology\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2018\/01\/mitchell-nz-earthquakes-1024x699.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2018\/01\/mitchell-nz-earthquakes-1024x699.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2018\/01\/mitchell-nz-earthquakes-1024x699.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2018\/01\/mitchell-nz-earthquakes-1024x699.jpg?resize=700%2C400 2x"},"classes":[]},{"id":1787504,"url":"https:\/\/www.maproomblog.com\/2019\/07\/mapping-ground-displacement-from-the-california-earthquakes\/","url_meta":{"origin":1820217,"position":5},"title":"Mapping Ground Displacement from the California Earthquakes","author":"Jonathan Crowe","date":"10 July 2019","format":"image","excerpt":"This interferogram shows the ground displacement caused by last week\u2019s earthquakes in southern California. Produced by NASA\u2019s Jet Propulsion Laboratory, it\u2019s based on synthetic aperture radar (SAR) images from JAXA\u2019s ALOS-2 satellite taken both before (16 April 2018) and after (8 July 2019) the earthquakes. Each colour cycle represents 12\u2026","rel":"","context":"In &quot;Geology&quot;","block_context":{"text":"Geology","link":"https:\/\/www.maproomblog.com\/category\/geology\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2019\/07\/PIA23150-848x1024.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2019\/07\/PIA23150-848x1024.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2019\/07\/PIA23150-848x1024.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2019\/07\/PIA23150-848x1024.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/posts\/1820217","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/comments?post=1820217"}],"version-history":[{"count":2,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/posts\/1820217\/revisions"}],"predecessor-version":[{"id":1820220,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/posts\/1820217\/revisions\/1820220"}],"wp:attachment":[{"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/media?parent=1820217"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/categories?post=1820217"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/tags?post=1820217"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}