{"id":362153,"date":"2026-08-04T16:48:13","date_gmt":"2026-08-04T16:48:13","guid":{"rendered":"http:\/\/6a70e56a5cc565024ec90754"},"modified":"2026-08-04T16:48:13","modified_gmt":"2026-08-04T16:48:13","slug":"los-mayores-supervolcanes-de-la-tierra-probablemente-se-esten-recargando-y-apenas-nos-dimos-cuenta","status":"publish","type":"post","link":"https:\/\/sarmiento24h.com\/?p=362153","title":{"rendered":"Los mayores supervolcanes de la Tierra probablemente se est\u00e9n recargando, y apenas nos dimos cuenta"},"content":{"rendered":"<p>Una de las erupciones m\u00e1s grandes registradas en los \u00faltimos 10,000 a\u00f1os ocurri\u00f3 en las profundidades del oc\u00e9ano de Jap\u00f3n. Hace 7,300 a\u00f1os, el volc\u00e1n submarino Kikai expuls\u00f3 hasta 183 kil\u00f3metros c\u00fabicos de magma. A su paso dej\u00f3 un tsunami gigante y un territorio cubierto de cenizas. Despu\u00e9s de la explosi\u00f3n, el volc\u00e1n colaps\u00f3 sobre s\u00ed mismo porque perdi\u00f3 gran parte del magma que lo sosten\u00eda. En su lugar qued\u00f3 una enorme depresi\u00f3n, o caldera, que los cient\u00edficos estudiar\u00edan miles de a\u00f1os m\u00e1s tarde.<\/p>\n<p>La actual caldera volc\u00e1nica de Kikai forma parte de un reducido grupo de gigantes geol\u00f3gicos que incluye a Yellowstone, en Estados Unidos, y Toba, en Indonesia. Durante mucho tiempo se asumi\u00f3 que una supererupci\u00f3n vaciaba estos <a href=\"https:\/\/es.wired.com\/articulos\/73-enormes-estructuras-bajo-el-mar-acaban-de-ser-reveladas-por-una-ia-disenada-para-marte\">enormes reservorios de magma<\/a>. Ahora, un grupo de investigadores propone una historia distinta: esos gigantes podr\u00edan volver a llenarse lentamente durante miles de a\u00f1os.<\/p>\n<p>El estudio publicado en <a href=\"https:\/\/www.nature.com\/articles\/s43247-026-03347-9\"><em>Communications Earth &amp; Environment<\/em><\/a> estima que bajo la caldera de Kikai existe un gran reservorio de magma parcialmente fundido. Seg\u00fan los autores, el reservorio que aliment\u00f3 la gigantesca erupci\u00f3n permaneci\u00f3 en el mismo lugar y, miles de a\u00f1os despu\u00e9s, comenz\u00f3 a recibir nuevas inyecciones de magma procedentes de una fuente distinta.<\/p>\n<p>Si esta hip\u00f3tesis es correcta, el proceso podr\u00eda representar un mecanismo com\u00fan en grandes calderas volc\u00e1nicas que ya atravesaron supererupciones, como Yellowstone o Toba. El modelo ayudar\u00eda a explicar c\u00f3mo las c\u00e1maras magm\u00e1ticas vuelven a llenarse despu\u00e9s de las mayores erupciones volc\u00e1nicas conocidas.<\/p>\n<hr>\n<div class=\"ContentCardEmbedWrapper-hkvhYu kMYDit content-card-embed content-card-embed--stacked\" data-testid=\"ContentCardEmbedWrapper\" readability=\"19.644787644788\">\n<div class=\"ContentCardEmbedImage-bqahne fjmzkP content-card-embed__image\" data-testid=\"ContentCardEmbedImage\"><span class=\"SpanWrapper-kFnjvc eKnjjD responsive-asset\"><picture class=\"ResponsiveImagePicture-jKunQM gjCCFj responsive-image\"><img decoding=\"async\" alt=\"volc\u00e1n Masaya Nicaragua\" loading=\"lazy\" class=\"ResponsiveImageContainer-dkeESL cQPiWi responsive-image__image\" srcset=\"https:\/\/media.es.wired.com\/photos\/6a6d0531ca95b738427da643\/master\/w_120,c_limit\/volc%C3%A1n%20Masaya%20Nicaragua%20534362314.jpg 120w, https:\/\/media.es.wired.com\/photos\/6a6d0531ca95b738427da643\/master\/w_240,c_limit\/volc%C3%A1n%20Masaya%20Nicaragua%20534362314.jpg 240w, https:\/\/media.es.wired.com\/photos\/6a6d0531ca95b738427da643\/master\/w_320,c_limit\/volc%C3%A1n%20Masaya%20Nicaragua%20534362314.jpg 320w, https:\/\/media.es.wired.com\/photos\/6a6d0531ca95b738427da643\/master\/w_640,c_limit\/volc%C3%A1n%20Masaya%20Nicaragua%20534362314.jpg 640w, https:\/\/media.es.wired.com\/photos\/6a6d0531ca95b738427da643\/master\/w_768,c_limit\/volc%C3%A1n%20Masaya%20Nicaragua%20534362314.jpg 768w\" sizes=\"100vw\" src=\"https:\/\/media.es.wired.com\/photos\/6a6d0531ca95b738427da643\/master\/w_775%2Cc_limit\/volc%25C3%25A1n%2520Masaya%2520Nicaragua%2520534362314.jpg\"><\/picture><\/span><\/div>\n<div class=\"ContentCardEmbedInfo-buyHWH gWLOee\" readability=\"20.872586872587\">\n<div class=\"BaseText-fEwdHD ContentCardEmbedHed-kDKGDs iUENtL dlHXUJ content-card-embed__hed\" data-testid=\"ContentCardEmbedHed\"><a class=\"BaseLink-haTOKm ContentCardEmbedHedLink-iBZsco ILkR hhUFQU content-card-embed__hed-link link\" href=\"https:\/\/es.wired.com\/articulos\/masaya-el-volcan-de-nicaragua-ubicado-cerca-de-2-millones-de-personas-tiene-dos-camaras-de-magma\" data-testid=\"ContentCardEmbedHedLink\">Masaya, el volc\u00e1n de Nicaragua ubicado cerca de 2 millones de personas, tiene dos c\u00e1maras de magma<\/a><\/div>\n<p>Las dos c\u00e1maras de magma que componen al volc\u00e1n Masaya provocan cambios en su comportamiento que deben ser vigilados con frecuencia, seg\u00fan los cient\u00edficos.<\/p>\n<\/div>\n<\/div>\n<hr>\n<h2>C\u00f3mo se recarga un supervolc\u00e1n<\/h2>\n<p>Para llegar a esa conclusi\u00f3n, los investigadores desplegaron 39 sism\u00f3metros en el fondo marino a lo largo de un perfil de 175 kil\u00f3metros. Despu\u00e9s analizaron la velocidad con la que las ondas s\u00edsmicas atravesaban el subsuelo de la caldera. Los datos revelaron una regi\u00f3n situada entre 2.5 y 6 kil\u00f3metros de profundidad donde las ondas viajaban m\u00e1s lentamente de lo esperado. Esa se\u00f1al suele indicar la presencia de roca muy caliente con material parcialmente fundido.<\/p>\n<p>Ese reservorio de la caldera no es un \u201c<a href=\"https:\/\/es.wired.com\/articulos\/sobrevole-un-volcan-islandes-en-erupcion-y-asi-puedes-hacerlo-tu-tambien\">lago de magma<\/a>\u201d, como podr\u00eda imaginarse. Los investigadores estiman que solo entre 3 y 6% de su volumen permanece fundido. El resto corresponde a roca caliente parcialmente cristalizada. Incluso en el escenario m\u00e1s extremo, la fracci\u00f3n de material fundido no superar\u00eda el 10%. El estudio propone un modelo de reinyecci\u00f3n de magma en el que se reinyecta magma nuevo en este gran reservorio a poca profundidad justo debajo de la caldera.<\/p>\n<p>\u201cEstos procesos de reinyecci\u00f3n de magma fundido en un reservorio a poca profundidad justo debajo de la caldera podr\u00edan ser un paso hacia la pr\u00f3xima erupci\u00f3n gigante de la caldera, y entonces las observaciones de la tasa de reducci\u00f3n de la velocidad de las ondas s\u00edsmicas y la informaci\u00f3n sobre estos cambios son indicadores importantes de erupciones gigantes de calderas posteriores\u201d, indica la conclusi\u00f3n del estudio.<\/p>\n<p>No obstante, los autores aclaran que el hallazgo no significa que la caldera de Kikai est\u00e9 a punto de entrar en erupci\u00f3n ni que exista un riesgo inmediato. El verdadero valor del estudio recae en c\u00f3mo muestra que un gran sistema volc\u00e1nico puede volver a acumular magma durante miles de a\u00f1os despu\u00e9s de una supererupci\u00f3n.<\/p>\n<p>\u201cLa reinyecci\u00f3n de magma fundido en el mismo gran reservorio de magma a poca profundidad justo debajo de la caldera, como sugerimos para el volc\u00e1n de la caldera de Kikai, puede ser una caracter\u00edstica com\u00fan de los volcanes que han experimentado una erupci\u00f3n de caldera grande o gigante\u201d, se\u00f1ala el estudio.<\/p>\n<p>Durante d\u00e9cadas, los ge\u00f3logos consideraron que las supererupciones vaciaban una c\u00e1mara magm\u00e1tica y marcaban el final de un ciclo volc\u00e1nico. Kikai aporta nueva evidencia de lo contrario. Ello se suma a estudios s\u00edsmicos anteriores que ya han identificado grandes reservorios de magma bajo otras calderas alrededor del mundo. El estudio japon\u00e9s propone un mecanismo com\u00fan mediante el cu\u00e1l las c\u00e1maras vuelven a acumular magma.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Una de las erupciones m\u00e1s grandes registradas&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":362154,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[46],"tags":[],"class_list":["post-362153","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tecnologia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - 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