{"id":119183,"date":"2026-04-30T01:14:52","date_gmt":"2026-04-30T04:14:52","guid":{"rendered":"https:\/\/ubirataonline.com.br\/volatile-hayward-fault-line-overdue-for-an-earthquake\/"},"modified":"2026-04-30T01:14:55","modified_gmt":"2026-04-30T04:14:55","slug":"volatile-hayward-fault-line-overdue-for-an-earthquake","status":"publish","type":"post","link":"https:\/\/ubirataonline.com.br\/en\/volatile-hayward-fault-line-overdue-for-an-earthquake\/","title":{"rendered":"Volatile Hayward Fault Line overdue for an earthquake"},"content":{"rendered":"<p><br \/>\n<\/p>\n<div>\n<p>This has scientists quaking in their boots.<\/p>\n<p>Researchers have found that one of the US\u2019 most dangerous fault lines is overdue for an earthquake, potentially threatening millions of people across California, per an alarming study in the journal <a href=\"https:\/\/pubs.geoscienceworld.org\/ssa\/srl\/article\/doi\/10.1785\/0220250161\/727600\/Analysis-of-Rupture-Directivity-and-Wave\" target=\"_blank\" rel=\"noopener\">Seismological Research Letters<\/a>.<\/p>\n<p>This terrifying tremor could \u201ccause extensive damage to such a dense population zone,\u201d wrote the team from the Lawrence Livermore National Laboratory and Lawrence Berkeley National Laboratory, <a href=\"https:\/\/www.llnl.gov\/article\/54316\/simulations-predict-ground-motion-earthquakes-bay-areas-hayward-fault\" target=\"_blank\" rel=\"noopener\">in a statement.<\/a><\/p>\n<figure class=\"nyp-slideshow-modal-image wp-block-image aligncenter size-large\"><figcaption>The Hayward Fault Line is overdue for an earthquake, potentially threatening millions of people in the Bay Area.  <span class=\"credit\">Javier brosch \u2013 stock.adobe.com<\/span><\/figcaption><\/figure>\n<figure class=\"nyp-slideshow-modal-image wp-block-image aligncenter size-large\"><figcaption>The aftermath of the Loma Prieta earthquake that rocked San Francisco in 1989. <span class=\"credit\">John Nakata \u2013 stock.adobe.com<\/span><\/figcaption><\/figure>\n<p>Part of the massive San Andreas Fault, the Hayward Fault extends 74 miles through major Bay Area hubs, including Berkeley, Oakland and Fremont, an area that\u2019s home to around 8 million people.<\/p>\n<p>This fault is of particular concern as it regularly generates magnitude 7 earthquakes \u2014 more powerful than <a href=\"https:\/\/www.conservation.ca.gov\/cgs\/earthquakes\/loma-prieta\" target=\"_blank\" rel=\"noopener\">the 1989 Loma Prieta quake<\/a> that killed 63 people and injured 3,757 in the Bay Area.<\/p>\n<aside class=\"single__inline-module aligncenter wp-block-nypost-editor-primary-tag\">\n<\/aside>\n<p>If one of these earthquakes were to occur today,<a href=\"https:\/\/nypost.com\/2018\/04\/23\/scientists-warn-of-tectonic-time-bomb-that-could-kill-hundreds\/\" target=\"_blank\" rel=\"noopener\"> it could potentially kill 800 people <\/a>and injure up to 18,000, per a previous US Geological Survey report called the\u00a0\u201cHayWired Scenario.\u201d<\/p>\n<p>While the last event to occur was in 1868, scientists have calculated that Hayward ruptures every 95 to 183 years, meaning we\u2019re overdue for a seismic event.<\/p>\n<p>According to the Geological Survey, Hayward has a 14.3% chance of a 6.7 magnitude or larger seismic event by 2034 and a 33% chance before 2043, making Hayward one of the most hazardous fault lines in the region.<\/p>\n<p>\u201cThis fault is what we sort of call a tectonic time bomb,\u201d USGS earthquake geologist emeritus David Schwartz\u00a0<a href=\"http:\/\/www.latimes.com\/local\/lanow\/la-me-hayward-fault-20180417-htmlstory.html\" target=\"_blank\" rel=\"noreferrer noopener\">told the Los Angeles Times<\/a> in 2018.\u00a0\u201cIt\u2019s just waiting to go off.\u201d<\/p>\n<p>To analyze just how dangerous this tremor factory is, the researchers used 3D simulations to examine 50 magnitude-7 simulations along the Hayward Fault, providing Californians insight into how they should prepare. <\/p>\n<p>\u201cWe are interested in learning what the ground motion for a typical magnitude-7 earthquake in the Bay Area could be, so that we can work with engineers to make sure that the infrastructure and buildings in the Bay Area can withstand this motion,\u201d said author and LLNL scientist Arben Pitarka. <\/p>\n<figure class=\"nyp-slideshow-modal-image wp-block-image aligncenter size-large\"><figcaption>Ground motion simulation of a magnitude-7 earthquake along the Hayward Fault. This tremor could \u201ccause extensive damage to such a dense population zone,\u201d wrote the team from the Lawrence Livermore National Laboratory and Lawrence Berkeley National Laboratory. <span class=\"credit\">Lawrence Livermore National Laboratory<\/span><\/figcaption><\/figure>\n<p>The team, which was helming the project for the Department of Energy, focused on two key models: a simulation of how seismic waves are created during the earthquake rupture and broadcast seismic vibrations through the Earth.<\/p>\n<p>\u201cThese large-scale simulations allow us to reduce the uncertainty in ground motion estimates\u201d that are associated with the oft-unpredictable earthquake rupture phenomenon, per Pitarka. The models also allowed the team to pinpoint areas vulnerable to \u201cvery strong shaking\u201d in the San Francisco Bay Area.<\/p>\n<p>These models revealed that the shaking generated during these simulated tremors could be up to 50% more powerful than prior forecasts for nearby population centers. Affected hubs included Livermore,\u00a0Oakland, Berkeley, Hayward, San Leandro, Emeryville and Alameda.<\/p>\n<figure class=\"nyp-slideshow-modal-image wp-block-image aligncenter size-large\"><figcaption>A map showing the major fault lines in the Bay Area. <span class=\"credit\">Peter Hermes Furian \u2013 stock.adobe.com<\/span><\/figcaption><\/figure>\n<aside class=\"single__inline-module alignleft\">\n\t<\/aside>\n<p>Caused by the pulse-like nature of the ground motion, which concentrates the seismic energy like a lens, this preternaturally violent shaking poses an outsized threat to tall or flexible buildings. <\/p>\n<p>The current would also potentially impact the deep \u201cbasin\u201d areas in California, which would likely trap and magnify an earthquake\u2019s waves, upping the length and power of the reverberations.<\/p>\n<p>Affected areas include Livermore Basin, the\u00a0East Bay Hills and Bay Mud, a low-lying area situated on the shore of San Francisco Bay.<\/p>\n<p>The USGS predicted in 2018 that the disaster could potentially also cause 400 fires that could destroy 50,000 homes and displace nearly half a million people.<\/p>\n<p>Thankfully, by painting a picture of the threat, these simulations allow city officials to plan accordingly.<\/p>\n<p>\u201cWith that information, we can also start preparations for retrofitting some of the vulnerable structures,\u201d said Pitarka. <\/p>\n<p>The team plans to use the same simulations to analyze the neighboring San Andreas Fault, the epicenter for some of California\u2019s most devastating earthquakes, such as the 1906 San Francisco event that killed\u00a0more than 3,000 people.\u00a0<\/p>\n<\/p><\/div>\n<p><br \/>\n<br \/><a href=\"https:\/\/nypost.com\/2026\/04\/29\/science\/volatile-hayward-fault-line-overdue-for-an-earthquake\/\">Source link <\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>This has scientists quaking in their boots. Researchers have found that one of the US\u2019 most dangerous fault lines is overdue for an earthquake, potentially threatening millions of people across California, per an alarming study in the journal Seismological Research Letters. This terrifying tremor could \u201ccause extensive damage to such a dense population zone,\u201d wrote [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":119184,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"googlesitekit_rrm_CAow2JLhCw:productID":"","_gspb_post_css":"","maa_idioma":"","maa_pais":"","footnotes":""},"categories":[2725],"tags":[7348,12567,32267,6173,27813,32266],"class_list":["post-119183","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-europe","tag-earthquake","tag-fault","tag-hayward","tag-line","tag-overdue","tag-volatile"],"blocksy_meta":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.6 (Yoast SEO v27.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Volatile Hayward Fault Line overdue for an earthquake - Ubirat\u00e3 Online Not\u00edcias - A realidade ao seu alcance!<\/title>\n<meta name=\"description\" content=\"This has scientists quaking in their boots. 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