{"id":2066,"date":"2016-06-06T16:21:56","date_gmt":"2016-06-06T16:21:56","guid":{"rendered":"https:\/\/courses.lumenlearning.com\/geologyxwaymakerxmaster\/?post_type=chapter&#038;p=2066"},"modified":"2025-10-13T17:01:17","modified_gmt":"2025-10-13T17:01:17","slug":"why-it-matters-volcanic-activity","status":"publish","type":"chapter","link":"https:\/\/courses.lumenlearning.com\/geo\/chapter\/why-it-matters-volcanic-activity\/","title":{"raw":"Why It Matters: Volcanoes","rendered":"Why It Matters: Volcanoes"},"content":{"raw":"<h2>Explain the origin of volcanic features and landforms; as well as the causes and hazards associated with volcanic activity.<\/h2>\r\nVolcanoes are one of the most dynamic, powerful and destructive forces on the Earth. While they are majestic in appearance, they are often sleeping giants just waiting to wake up and make us take notice. Some of you may have seen volcanic eruptions in person or on TV. Volcanoes are the geologists' window into the Earth\u2019s interior. If you recall from the previous section, plate tectonics directly influences the location and types of volcanoes we find across the globe. Now we understand why the west coast of America as a chain of volcanoes in the Cascade Mountains and why Japan has so many active volcanoes.\r\n<div class=\"textbox key-takeaways\">\r\n<h3>Occupation Focus: Volcanologists<\/h3>\r\nVolcanologists have one of the most exciting yet dangerous jobs of all scientists. Please watch this video on the eruption of Mt. St. Helens in 1980 to learn more about volcanic eruptions, how scientists study the volcanoes and why volcanologists are important to society.\r\n\r\nhttps:\/\/youtu.be\/Ec30uU0G56U\r\n\r\nThis video shows the most destructive eruption ever that happen to also be the loudest sound ever recorded on earth. This eruption actually blew the volcanoes out of existence, until recently as a new active volcano is currently forming in its place.\r\n\r\nhttps:\/\/youtu.be\/opWwfRS7HZU\r\n\r\n<\/div>\r\n<h3>Learning Outcomes<\/h3>\r\n<ul>\r\n \t<li>Describe and compare different volcano types.<\/li>\r\n \t<li>Describe the processes that form volcanoes.<\/li>\r\n \t<li>Classify and identify igneous features.<\/li>\r\n \t<li>Describe major volcanic hazards and their potential effects.<\/li>\r\n \t<li>Identify the various methods used to monitor volcanic activity<\/li>\r\n<\/ul>","rendered":"<h2>Explain the origin of volcanic features and landforms; as well as the causes and hazards associated with volcanic activity.<\/h2>\n<p>Volcanoes are one of the most dynamic, powerful and destructive forces on the Earth. While they are majestic in appearance, they are often sleeping giants just waiting to wake up and make us take notice. Some of you may have seen volcanic eruptions in person or on TV. Volcanoes are the geologists&#8217; window into the Earth\u2019s interior. If you recall from the previous section, plate tectonics directly influences the location and types of volcanoes we find across the globe. Now we understand why the west coast of America as a chain of volcanoes in the Cascade Mountains and why Japan has so many active volcanoes.<\/p>\n<div class=\"textbox key-takeaways\">\n<h3>Occupation Focus: Volcanologists<\/h3>\n<p>Volcanologists have one of the most exciting yet dangerous jobs of all scientists. Please watch this video on the eruption of Mt. St. Helens in 1980 to learn more about volcanic eruptions, how scientists study the volcanoes and why volcanologists are important to society.<\/p>\n<p><iframe loading=\"lazy\" id=\"oembed-1\" title=\"Mount St. Helens: May 18, 1980\" width=\"500\" height=\"375\" src=\"https:\/\/www.youtube.com\/embed\/Ec30uU0G56U?feature=oembed&#38;rel=0\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p>This video shows the most destructive eruption ever that happen to also be the loudest sound ever recorded on earth. This eruption actually blew the volcanoes out of existence, until recently as a new active volcano is currently forming in its place.<\/p>\n<p><iframe loading=\"lazy\" id=\"oembed-2\" title=\"THE LOUDEST SOUND IN HISTORY\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/opWwfRS7HZU?feature=oembed&#38;rel=0\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<\/div>\n<h3>Learning Outcomes<\/h3>\n<ul>\n<li>Describe and compare different volcano types.<\/li>\n<li>Describe the processes that form volcanoes.<\/li>\n<li>Classify and identify igneous features.<\/li>\n<li>Describe major volcanic hazards and their potential effects.<\/li>\n<li>Identify the various methods used to monitor volcanic activity<\/li>\n<\/ul>\n\n\t\t\t <section class=\"citations-section\" role=\"contentinfo\">\n\t\t\t <h3>Candela Citations<\/h3>\n\t\t\t\t\t <div>\n\t\t\t\t\t\t <div id=\"citation-list-2066\">\n\t\t\t\t\t\t\t <div class=\"licensing\"><div class=\"license-attribution-dropdown-subheading\">CC licensed content, Original<\/div><ul class=\"citation-list\"><li><strong>Authored by<\/strong>: Kimberly Schulte and Lumen Learning. <strong>Provided by<\/strong>: Lumen Learning. <strong>License<\/strong>: <em><a target=\"_blank\" rel=\"license\" href=\"https:\/\/creativecommons.org\/licenses\/by\/4.0\/\">CC BY: Attribution<\/a><\/em><\/li><\/ul><div class=\"license-attribution-dropdown-subheading\">All rights reserved content<\/div><ul class=\"citation-list\"><li>Mount St. Helens May 18, 1980. <strong>Provided by<\/strong>: USGS. <strong>Located at<\/strong>: <a target=\"_blank\" href=\"https:\/\/youtu.be\/Ec30uU0G56U\">https:\/\/youtu.be\/Ec30uU0G56U<\/a>. <strong>License<\/strong>: <em>All Rights Reserved<\/em>. <strong>License Terms<\/strong>: Standard YouTube License<\/li><li>THE LOUDEST SOUND IN HISTORY. <strong>Authored by<\/strong>: Second Thought. <strong>Located at<\/strong>: <a target=\"_blank\" href=\"https:\/\/youtu.be\/opWwfRS7HZU\">https:\/\/youtu.be\/opWwfRS7HZU<\/a>. <strong>License<\/strong>: <em>All Rights Reserved<\/em>. <strong>License Terms<\/strong>: Standard YouTube License<\/li><\/ul><\/div>\n\t\t\t\t\t\t <\/div>\n\t\t\t\t\t <\/div>\n\t\t\t <\/section>","protected":false},"author":17,"menu_order":1,"template":"","meta":{"_candela_citation":"[{\"type\":\"original\",\"description\":\"\",\"author\":\"Kimberly Schulte and Lumen Learning\",\"organization\":\"Lumen Learning\",\"url\":\"\",\"project\":\"\",\"license\":\"cc-by\",\"license_terms\":\"\"},{\"type\":\"copyrighted_video\",\"description\":\"Mount St. Helens May 18, 1980\",\"author\":\"\",\"organization\":\"USGS\",\"url\":\"https:\/\/youtu.be\/Ec30uU0G56U\",\"project\":\"\",\"license\":\"arr\",\"license_terms\":\"Standard YouTube License\"},{\"type\":\"copyrighted_video\",\"description\":\"THE LOUDEST SOUND IN HISTORY\",\"author\":\"Second Thought\",\"organization\":\"\",\"url\":\"https:\/\/youtu.be\/opWwfRS7HZU\",\"project\":\"\",\"license\":\"arr\",\"license_terms\":\"Standard YouTube License\"}]","CANDELA_OUTCOMES_GUID":"dded128c-7d82-4508-b514-9fde607b3ced","pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"chapter-type":[],"contributor":[],"license":[],"class_list":["post-2066","chapter","type-chapter","status-publish","hentry"],"part":27,"_links":{"self":[{"href":"https:\/\/courses.lumenlearning.com\/geo\/wp-json\/pressbooks\/v2\/chapters\/2066","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/courses.lumenlearning.com\/geo\/wp-json\/pressbooks\/v2\/chapters"}],"about":[{"href":"https:\/\/courses.lumenlearning.com\/geo\/wp-json\/wp\/v2\/types\/chapter"}],"author":[{"embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/geo\/wp-json\/wp\/v2\/users\/17"}],"version-history":[{"count":6,"href":"https:\/\/courses.lumenlearning.com\/geo\/wp-json\/pressbooks\/v2\/chapters\/2066\/revisions"}],"predecessor-version":[{"id":3098,"href":"https:\/\/courses.lumenlearning.com\/geo\/wp-json\/pressbooks\/v2\/chapters\/2066\/revisions\/3098"}],"part":[{"href":"https:\/\/courses.lumenlearning.com\/geo\/wp-json\/pressbooks\/v2\/parts\/27"}],"metadata":[{"href":"https:\/\/courses.lumenlearning.com\/geo\/wp-json\/pressbooks\/v2\/chapters\/2066\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/courses.lumenlearning.com\/geo\/wp-json\/wp\/v2\/media?parent=2066"}],"wp:term":[{"taxonomy":"chapter-type","embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/geo\/wp-json\/pressbooks\/v2\/chapter-type?post=2066"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/geo\/wp-json\/wp\/v2\/contributor?post=2066"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/courses.lumenlearning.com\/geo\/wp-json\/wp\/v2\/license?post=2066"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}