{"id":68321,"date":"2026-03-03T15:50:13","date_gmt":"2026-03-03T15:50:13","guid":{"rendered":"https:\/\/site.itshrt.com\/worldnews\/worlds-largest-acidic-geyser-erupts-again-in-yellowstone-after-years-of-silence\/"},"modified":"2026-03-03T15:50:13","modified_gmt":"2026-03-03T15:50:13","slug":"worlds-largest-acidic-geyser-erupts-again-in-yellowstone-after-years-of-silence","status":"publish","type":"post","link":"https:\/\/site.itshrt.com\/worldnews\/worlds-largest-acidic-geyser-erupts-again-in-yellowstone-after-years-of-silence\/","title":{"rendered":"World&#8217;s largest acidic geyser erupts again in Yellowstone after years of silence"},"content":{"rendered":"<p> <script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-6606220950177433\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<!-- ItShrt World News -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-6606220950177433\"\r\n     data-ad-slot=\"1882483372\"\r\n     data-ad-format=\"auto\"\r\n     data-full-width-responsive=\"true\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\r\n<br \/>\n<\/p>\n<div id=\"\">\n<p>The world&#8217;s largest acidic geyser has begun erupting again in Yellowstone after slumbering for over five years, <a href=\"https:\/\/www.usgs.gov\/observatories\/yvo\/news\/echinus-geyser-back-action-now\" target=\"_blank\" rel=\"nofollow noopener\">the national park said<\/a> Monday.<\/p>\n<p>Echinus Geyser, located in the back basin of the Norris Geyser Basin at Yellowstone, is about 66 feet wide and is surrounded by rocks that resemble sea urchins. The geyser was named for those rocks, Yellowstone said, after mineralogist Albert Charles Peale noted the resemblance during a visit to the site in 1878.\u00a0<\/p>\n<p>Echinus is made acidic because of a mix of acidic gases and neutral waters, Yellowstone said. Many acidic geysers break down the rock that forms a geyser, but the acidity at Echinus is not strong enough to eat away at the surrounding stone. The acid is not concentrated, making it more like &#8220;orange juice or vinegar,&#8221; according to the park.\u00a0<\/p>\n<p>Instead, &#8220;that somewhat unique water chemistry results in interesting formations and compositions,&#8221; Yellowstone said, including the red color around the geyser pool and the spiny rocks.\u00a0<\/p>\n<figure class=\"embed embed--type-image is-image embed--float-none embed--size-medium\">\n<p>      <span class=\"img embed__content\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/assets3.cbsnewsstatic.com\/hub\/i\/r\/2026\/03\/03\/491d451d-c603-4919-bdb9-d0c1cf5d1eac\/thumbnail\/620x465\/b55965f5310b732ce89389dbf110d3de\/vhp-img31.jpg#\" alt=\"vhp-img31.jpg \" height=\"465\" width=\"620\" class=\" lazyload\" srcset=\"https:\/\/assets3.cbsnewsstatic.com\/hub\/i\/r\/2026\/03\/03\/491d451d-c603-4919-bdb9-d0c1cf5d1eac\/thumbnail\/620x465\/b55965f5310b732ce89389dbf110d3de\/vhp-img31.jpg 1x, https:\/\/assets3.cbsnewsstatic.com\/hub\/i\/r\/2026\/03\/03\/491d451d-c603-4919-bdb9-d0c1cf5d1eac\/thumbnail\/1240x930\/27dd45c1660e14b278f7d06c6ddb5f69\/vhp-img31.jpg 2x\" loading=\"lazy\"\/><\/span><figcaption class=\"embed__caption-container\">\n<p>                  <span class=\"embed__caption\">The Echinus Geyser at Yellowstone National Park.\u00a0<\/span><\/p>\n<p>                  <span class=\"embed__credit\"><\/p>\n<p>                Yellowstone National Park<\/p>\n<p>                          <\/span><br \/>\n              <\/figcaption><\/figure>\n<p>Echinus erupted often in the late half of the 20th century, and viewing platforms and benches allowed visitors to get closer to the site than any other geyser in the park, according to Yellowstone. In the 1970s, the geyser erupted every 40 to 80 minutes, and in the 1980s and 1990s, the eruptions could last as long as 90 minutes and reach as high as 75 feet. Sometimes the eruptions were even horizontal, soaking visitors with warm water.\u00a0<\/p>\n<p>The geyser&#8217;s activity started to wane in the early 2000s. In 2010, a temperature monitoring system installed in the geyser&#8217;s outflow channel allowed Yellowstone to monitor changes. The system recorded 15 sporadic eruptions between October 2010 and January 2011, and eruptions remained few and far between until October 2017. The eruptions were consistent for several weeks, but then &#8220;suddenly stopped,&#8221; Yellowstone said. There were a few eruptions over the following years, but the geyser was largely inactive.\u00a0<\/p>\n<p>In February 2026, the geyser started showing signs of activity. It erupted on Feb. 7, then again throughout the next week. There were regular 20-30 foot eruptions every few hours beginning on February 16.\u00a0<\/p>\n<p>In recent days, the geyser has had spikes of activity that tend to precede eruptions, but no actual eruptions, according to a <a href=\"https:\/\/www.usgs.gov\/volcanoes\/yellowstone\/science\/water-temperature-data-echinus-geyser-yellowstone-national-park\" target=\"_blank\" rel=\"nofollow noopener\">temperature graph<\/a>.\u00a0<\/p>\n<p>The park said it is unlikely the geyser will continue erupting into the summer, but there is no way to predict what may actually occur.\u00a0<\/p>\n<section class=\"content__body--footer\">\n<\/section>\n<p>  <!-- data-recirc-source=\"queryly\" --><\/p>\n<aside class=\"component list recirculation component--type-recirculation  \">\n<p><h3 class=\"component__title\">More from CBS News<\/h3>\n<\/p>\n<div class=\"component__item-recirc-block\">\n<p><h3 class=\"component__title\">Go deeper with The Free Press<\/h3>\n<\/p><\/div>\n<\/aside>\n<section class=\"content__body--footer\">\n      <!-- tags --><\/p>\n<section class=\"content__tags\">\n<p class=\"content__tags__label\">In:<\/p>\n<\/section>\n<\/section><\/div>\n<p><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-6606220950177433\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<!-- ItShrt World News -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-6606220950177433\"\r\n     data-ad-slot=\"1882483372\"\r\n     data-ad-format=\"auto\"\r\n     data-full-width-responsive=\"true\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\r\n<br \/>\n<br \/><a href=\"https:\/\/www.cbsnews.com\/news\/yellowstone-echinus-geyser-eruption-norris-basin\/\">Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The world&#8217;s largest acidic geyser has begun erupting again in Yellowstone after slumbering for over five years, the national park<\/p>\n","protected":false},"author":1,"featured_media":68322,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33],"tags":[6749],"class_list":["post-68321","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-us","tag-yellowstone-national-park"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>World&#039;s largest acidic geyser erupts again in Yellowstone after years of silence - World News<\/title>\n<meta name=\"description\" content=\"Echinus Geyser is about 66 feet wide and is surrounded by rocks that resemble sea urchins.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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