{"id":11708,"date":"2021-01-20T15:12:19","date_gmt":"2021-01-20T15:12:19","guid":{"rendered":"https:\/\/wp.erdmost.hu\/2021\/01\/20\/magyarorszagon-erezni-lehetett\/"},"modified":"2021-01-20T15:12:19","modified_gmt":"2021-01-20T15:12:19","slug":"magyarorszagon-erezni-lehetett","status":"publish","type":"post","link":"https:\/\/erdmost.hu\/en\/2021\/01\/20\/magyarorszagon-erezni-lehetett\/","title":{"rendered":"Magyarorsz\u00e1gon is \u00e9rezni lehetett"},"content":{"rendered":"

B\u00e1r a k\u00f6z\u00e9piskol\u00e1ban tanultuk, biztos vagyok benne, sokan nem tudj\u00e1k, mi okozza a f\u00f6ldreng\u00e9seket. <\/strong><\/p>\n

A F\u00f6ld 50-200 km vastag szil\u00e1rd r\u00e9tege, az \u00fagynevezett k\u0151zetburok nem egys\u00e9ges, hanem 14 nagy lemezre \u00e9s sz\u00e1mos mikrolemezre van sz\u00e9tt\u00f6redezve. Ezek a lemezek egym\u00e1shoz k\u00e9pest elt\u00e9r\u0151 ir\u00e1ny\u00fa \u00e9s sebess\u00e9g\u0171 mozg\u00e1st v\u00e9geznek. A legut\u00f3bbi horv\u00e1torsz\u00e1gi \u00e9s Magyarorsz\u00e1gon is \u00e9rz\u00e9kelhet\u0151 reng\u00e9st az afrikai-lemez Eur\u00f3p\u00e1hoz k\u00f6zeled\u00e9se okozta. K\u00f6r\u00fclbel\u00fcl 6 cm-t k\u00f6zeledik \u00e9vente Eur\u00f3pa fel\u00e9 az afrikai-lemez, \u00e9s az \u00fctk\u00f6z\u00e9si ter\u00fcleten fesz\u00fclts\u00e9gfelhalmoz\u00f3d\u00e1s t\u00f6rt\u00e9nik. Folyamatosan k\u00f6zeledik az afrikai-t\u00e1bla, a k\u0151zetek \u00f6sszenyom\u00f3dnak, \u00f6sszepr\u00e9sel\u0151dnek. Egy darabig \u00fagymond plasztikus deform\u00e1ci\u00f3val kiegyenl\u00edt\u0151dnek a fesz\u00fclts\u00e9gek, de ha megakad a k\u0151zetek egym\u00e1shoz k\u00e9pest t\u00f6rt\u00e9n\u0151 tol\u00f3d\u00e1sa, egy bizonyos pont ut\u00e1n a fesz\u00fclts\u00e9g f\u00f6ldreng\u00e9s form\u00e1j\u00e1ban old\u00f3dik ki.<\/p>\n

Mi itt a kontinens belsej\u00e9ben v\u00e9dve vagyunk a nagyobb f\u00f6ldmozg\u00e1sokt\u00f3l?<\/strong><\/p>\n

A mi szerencs\u00e9nk az, hogy viszonylag t\u00e1vol vagyunk az \u00fctk\u00f6z\u00e9si z\u00f3n\u00e1t\u00f3l, \u00edgy Magyarorsz\u00e1gon \u00e9s a K\u00e1rp\u00e1t-medenc\u00e9ben nem gyakoriak az 5-\u00f6sn\u00e9l er\u0151sebb reng\u00e9sek. A legnagyobb ismert reng\u00e9st Kom\u00e1romban m\u00e9rt\u00e9k 1763-ban, ez 6,3-as er\u0151ss\u00e9g\u0171 volt. Olyan gyors k\u0151zetfelhalmoz\u00f3d\u00e1sra, ami a lemezek \u00fctk\u00f6z\u00e9si hat\u00e1r\u00e1ban \u00e9szlelhet\u0151, a K\u00e1rp\u00e1t-medence k\u00f6zep\u00e9n nem sz\u00e1m\u00edtunk, sz\u00f3val katasztrof\u00e1lis m\u00e9ret\u0171 reng\u00e9sek nem v\u00e1rhat\u00f3k Magyarorsz\u00e1gon. Havonta 3-4 olyan kis f\u00f6ldreng\u00e9s van Magyarorsz\u00e1gon, amit csak a m\u0171szerek regisztr\u00e1lnak.<\/p>\n

A horv\u00e1torsz\u00e1gi f\u00f6ldreng\u00e9st m\u00e9gis lehetett \u00e9rezni Magyarorsz\u00e1gon, itt \u00c9rden is rengetegen sz\u00e1moltak be r\u00f3la.<\/strong><\/p>\n

30 \u00e9ve dolgozom az obszervat\u00f3riumban, de nem tapasztaltam m\u00e9g ilyet. Ez val\u00f3ban \u00fajdons\u00e1g sz\u00e1munkra is, b\u00e1r tudjuk, hogy el\u0151fordulnak ilyen nagyobb reng\u00e9sek a d\u00e9li r\u00e9gi\u00f3ban, de hogy f\u00e9l Magyarorsz\u00e1g \u00e9rezze, erre m\u00e9g nem volt p\u00e9lda.<\/p>\n

Annak mi az oka, hogy adott ter\u00fcleten nem mindenki \u00e9rzi a reng\u00e9st? \u00c9n p\u00e9ld\u00e1ul nem \u00e9reztem egyik alkalommal sem, m\u00edg t\u0151lem 500 m\u00e9terre t\u00f6bben is<\/strong>.<\/p>\n

F\u00fcgg att\u00f3l, hogy milyen az altalaj, milyen m\u00e9lyen volt a f\u00f6ldreng\u00e9s f\u00e9szke, milyen magas \u00e9p\u00fclet h\u00e1nyadik emelet\u00e9n vagyunk, annak az \u00e9p\u00fcletnek milyen a szerkezete. De az is sz\u00e1m\u00edt, hogy mit csin\u00e1lunk \u00e9pp. Ugyanabban a lak\u00e1sban az egyik fiam \u00e9rezte, a feles\u00e9ge nem. De f\u00fcgg att\u00f3l, hogy utc\u00e1n tart\u00f3zkodunk vagy aut\u00f3ban, feksz\u00fcnk vagy \u00fcl\u00fcnk. Budapest ter\u00fclet\u00e9re mind\u00f6ssze m\u00e1sf\u00e9l perc alatt \u00e9rtek a reng\u00e9shull\u00e1mok, \u00e9s egy bizonyos t\u00edpusa, a reng\u00e9shull\u00e1moknak ez a felsz\u00edni hull\u00e1ma k\u00f6r\u00fclbel\u00fcl m\u00e1sf\u00e9l percig volt \u00e9rezhet\u0151, vagyis m\u00e1sf\u00e9l percen \u00e1t, egy centit picit megemelkedett a talaj percenk\u00e9nt k\u00f6r\u00fclbel\u00fcl nyolcszor. Ez olyan lass\u00fa hint\u00e1z\u00e1s, ami ha sok\u00e1ig tart, k\u00e9pes az \u00e9p\u00fcleteket belengetni. \u00c9s mivel ez hatalmas energi\u00e1j\u00fa f\u00f6ldreng\u00e9s volt, sok\u00e1ig \u00e9rkeztek az er\u0151s fel\u00fcleti hull\u00e1mok, \u00e9s emiatt t\u00f6rt\u00e9nt, hogy f\u00e9lelmetesen belengtek a magasabb \u00e9p\u00fcletek.<\/p>\n

A glob\u00e1lis felmeleged\u00e9snek van b\u00e1rmilyen hat\u00e1sa a f\u00f6ldreng\u00e9sekre?<\/strong><\/p>\n

A k\u0151zetlemezek hatalmas t\u00f6meg\u0171, stabilan mozg\u00f3, \u00fctk\u00f6z\u0151 vagy t\u00e1volod\u00f3 lemezek, ezekben olyan drasztikus v\u00e1ltoz\u00e1s nem t\u00f6rt\u00e9nik. Azt tudjuk, hogy ha a j\u00e9gtakar\u00f3 leolvad az \u00e9szaki ter\u00fcletekr\u0151l, megv\u00e1ltozik a k\u00e9rget terhel\u0151 nyom\u00e1s. Ez okozhat kisebb f\u00f6ldreng\u00e9seket, ezekr\u0151l m\u00e1r vannak vizsg\u00e1latok, de az \u00e9ghajlatv\u00e1ltoz\u00e1s jelent\u0151sen nem nyomja r\u00e1 a b\u00e9lyeg\u00e9t a tektonikus folyamatokra.<\/p>","protected":false},"excerpt":{"rendered":"

December v\u00e9g\u00e9n Horv\u00e1torsz\u00e1got f\u00f6ldreng\u00e9s s\u00fajtotta, mely \u00e9rz\u00e9kelhet\u0151 volt idehaza, s\u0151t v\u00e1rosunkban is t\u00f6bben \u00e9szlelt\u00e9k a jelens\u00e9get. A t\u00e9ma kapcs\u00e1n Kiszely M\u00e1rt\u00e1val, a K\u00f6vesligethy Rad\u00f3 Szeizmol\u00f3giai Obszervat\u00f3rium szeizmol\u00f3gus\u00e1val besz\u00e9lgett\u00fcnk. <\/p>","protected":false},"author":8,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"cikk_cimkek":[15],"content_flags":[348],"content_icons":[],"class_list":["post-11708","post","type-post","status-publish","format-standard","hentry","category-erdmost","cikk_cimkek-kozelet","content_flags-top"],"acf":[],"_links":{"self":[{"href":"https:\/\/erdmost.hu\/en\/wp-json\/wp\/v2\/posts\/11708","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/erdmost.hu\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/erdmost.hu\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/erdmost.hu\/en\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/erdmost.hu\/en\/wp-json\/wp\/v2\/comments?post=11708"}],"version-history":[{"count":0,"href":"https:\/\/erdmost.hu\/en\/wp-json\/wp\/v2\/posts\/11708\/revisions"}],"wp:attachment":[{"href":"https:\/\/erdmost.hu\/en\/wp-json\/wp\/v2\/media?parent=11708"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/erdmost.hu\/en\/wp-json\/wp\/v2\/categories?post=11708"},{"taxonomy":"cikk_cimkek","embeddable":true,"href":"https:\/\/erdmost.hu\/en\/wp-json\/wp\/v2\/cikk_cimkek?post=11708"},{"taxonomy":"content_flags","embeddable":true,"href":"https:\/\/erdmost.hu\/en\/wp-json\/wp\/v2\/content_flags?post=11708"},{"taxonomy":"content_icons","embeddable":true,"href":"https:\/\/erdmost.hu\/en\/wp-json\/wp\/v2\/content_icons?post=11708"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}