{"id":6073,"date":"2020-11-24T12:20:37","date_gmt":"2020-11-24T10:20:37","guid":{"rendered":"https:\/\/www.adssc.org\/en\/?p=6073"},"modified":"2020-11-24T12:35:08","modified_gmt":"2020-11-24T10:35:08","slug":"stability-analysis-of-fragile-rock-pillars-and-insights-on-fault-activity-in-the-negev-israel","status":"publish","type":"post","link":"https:\/\/www.adssc.org\/en\/stability-analysis-of-fragile-rock-pillars-and-insights-on-fault-activity-in-the-negev-israel\/","title":{"rendered":"Stability analysis of fragile rock pillars and insights on fault activity in the Negev, Israel"},"content":{"rendered":"<p><strong>Authors: <a href=\"https:\/\/www.adssc.org\/en\/yaron-finzi-phd\/\" target=\"_blank\" rel=\"noopener noreferrer\">Y. Finzi<\/a><\/strong>, N. Ganz, O. Dor, M. Davis, O. Volk, S. Langer, R. Arrowsmith , M. Tsesarsky<\/p>\n<p><strong>Published in:<\/strong> Journal\u00a0of Geophysical Research<\/p>\n<p><strong>Doi: <\/strong><a href=\"https:\/\/doi.org\/10.1029\/2019JB019269\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/doi.org\/10.1029\/2019JB019269<\/a><\/p>\n<p><strong>Plain Language Summary:<\/strong><\/p>\n<p>Rock pillars and precariously balanced rocks in the Negev desert, Israel, were used to re-evaluate the maximum seismic ground shaking that could have occurred during their life-span.<\/p>\n<p>Our work documented dozens of fragile geologic features which formed thousands of years ago and have withstood the ground shaking induced by many regional earthquakes. Within a study area of approximately 3000 km<sup>2<\/sup>, we were able to document and analyze enough fragile structures to evaluate the long-term seismic activity of several faults in the Negev and along the southern Dead Sea Transform. Slender rock pillars were shown to have natural frequencies within the range of seismic waves, making them very sensitive to resonance motion induced by large distant earthquakes.<\/p>\n<p>Our analysis and database provides new constraints on shaking intensity induced by historic earthquakes and significant implications for national hazard assessments. In particular it indicates that the Arava Faults, which is the main seismic source in the region, has not experienced earthquake magnitudes larger than M7 in the past 10,000 years. Expanding our study area can help resolve fundamental knowledge gaps regarding the magnitude of ancient earthquakes, and can improve regional and site-specific seismic hazard analyses in Israel and Jordan.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-6077\" src=\"https:\/\/www.adssc.org\/en\/wp-content\/uploads\/2020\/11\/FGF-pillar2.jpg\" alt=\"\" width=\"600\" height=\"800\" srcset=\"https:\/\/www.adssc.org\/en\/wp-content\/uploads\/2020\/11\/FGF-pillar2.jpg 600w, https:\/\/www.adssc.org\/en\/wp-content\/uploads\/2020\/11\/FGF-pillar2-225x300.jpg 225w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-6078\" src=\"https:\/\/www.adssc.org\/en\/wp-content\/uploads\/2020\/11\/FGF-PBR2.jpg\" alt=\"\" width=\"554\" height=\"800\" srcset=\"https:\/\/www.adssc.org\/en\/wp-content\/uploads\/2020\/11\/FGF-PBR2.jpg 554w, https:\/\/www.adssc.org\/en\/wp-content\/uploads\/2020\/11\/FGF-PBR2-208x300.jpg 208w\" sizes=\"(max-width: 554px) 100vw, 554px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Authors: Y. Finzi, N. Ganz, O. Dor, M. Davis, O. Volk, S. Langer, R. Arrowsmith , M. Tsesarsky Published in: Journal\u00a0of Geophysical Research Doi: https:\/\/doi.org\/10.1029\/2019JB019269 Plain Language Summary: Rock pillars and precariously balanced rocks in the Negev desert, Israel, were used to re-evaluate the maximum seismic ground shaking that could have occurred during their life-span. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":6079,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[217],"tags":[],"class_list":{"0":"post-6073","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-new-article"},"jetpack_featured_media_url":"https:\/\/www.adssc.org\/en\/wp-content\/uploads\/2020\/11\/FGF-PBR2-1200X800.jpg","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.adssc.org\/en\/wp-json\/wp\/v2\/posts\/6073","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.adssc.org\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.adssc.org\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.adssc.org\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.adssc.org\/en\/wp-json\/wp\/v2\/comments?post=6073"}],"version-history":[{"count":2,"href":"https:\/\/www.adssc.org\/en\/wp-json\/wp\/v2\/posts\/6073\/revisions"}],"predecessor-version":[{"id":6081,"href":"https:\/\/www.adssc.org\/en\/wp-json\/wp\/v2\/posts\/6073\/revisions\/6081"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.adssc.org\/en\/wp-json\/wp\/v2\/media\/6079"}],"wp:attachment":[{"href":"https:\/\/www.adssc.org\/en\/wp-json\/wp\/v2\/media?parent=6073"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.adssc.org\/en\/wp-json\/wp\/v2\/categories?post=6073"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.adssc.org\/en\/wp-json\/wp\/v2\/tags?post=6073"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}