{"id":2494,"date":"2015-05-20T15:46:30","date_gmt":"2015-05-20T23:46:30","guid":{"rendered":"http:\/\/earthjay.com\/?p=2494"},"modified":"2015-05-20T15:46:30","modified_gmt":"2015-05-20T23:46:30","slug":"santa-cruz-islands-earthquake","status":"publish","type":"post","link":"https:\/\/earthjay.com\/?p=2494","title":{"rendered":"Santa Cruz Islands Earthquake!"},"content":{"rendered":"<p>We just had an earthquake in the Santa Cruz Islands region. Earliest reports has the magnitude at M = 6.9, with a depth of 19.9 km. This earthquake appears to align with a transform boundary that connects the New Hebrides Trench on the east with the Vanuatu subduction zone on the west. Some people map this plate boundary as a subduction zone, but recent earthquakes suggest it is transform. There was an <a href=\"http:\/\/earthjay.com\/?p=1586\" target=\"_blank\" rel=\"noopener\">earthquake in 2014 April<\/a> that has a strike slip moment tensor. Here is the <a href=\"http:\/\/earthquake.usgs.gov\/earthquakes\/eventpage\/us10002b03#general_summary\" target=\"_blank\" rel=\"noopener\">USGS page<\/a> for this M = 6.9 earthquake. This earthquake is unlikely to generate a tsunami. Strike slip earthquakes can generate tsunamis, if there are offsets of topography or if there are triggered landslides.<br \/>\nHere is my first map showing the epicenter of the M = 6.9 earthquake as a red dot. I also highlight recent activity along the Solomon Isles (New Hebrides Trench) and the New Britain region (Solomon Sea plate).<br \/>\n<a href=\"http:\/\/earthjay.com\/earthquakes\/20150520_santa_cruz\/20150520_santa_cruz_global_interpretation.pdf\" target=\"_blank\" rel=\"noopener\"><br \/>\n<img decoding=\"async\" src=\"http:\/\/earthjay.com\/earthquakes\/20150520_santa_cruz\/20150520_santa_cruz_global_interpretation.jpg\" width=\"100%\" alt=\"\" \/><\/a><br \/>\nHere is a graphic that I put together showing the sense of motion inferred by the graphical depiction of moment tensors and focal mechanisms. More explanation can be found at the <a href=\"http:\/\/earthquake.usgs.gov\/learn\/topics\/beachball.php\" target=\"_blank\" rel=\"noopener\">USGS webpage on focal mechanisms<\/a>.<br \/>\n<a href=\"http:\/\/earthjay.com\/earthquakes\/20150520_santa_cruz\/moment_tensor.jpg\" target=\"_blank\" rel=\"noopener\"><br \/>\n<img decoding=\"async\" src=\"http:\/\/earthjay.com\/earthquakes\/20150520_santa_cruz\/moment_tensor.jpg\" width=\"100%\" alt=\"\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<div class=\"entry-summary\">\nWe just had an earthquake in the Santa Cruz Islands region. Earliest reports has the magnitude at M = 6.9, with a depth of 19.9 km. This earthquake appears to align with a transform boundary that connects the New Hebrides&hellip;\n<\/div>\n<div class=\"link-more\"><a href=\"https:\/\/earthjay.com\/?p=2494\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &ldquo;Santa Cruz Islands Earthquake!&rdquo;<\/span>&hellip;<\/a><\/div>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"categories":[44,49,6,7,27,34,38],"tags":[],"aioseo_notices":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/earthjay.com\/index.php?rest_route=\/wp\/v2\/posts\/2494"}],"collection":[{"href":"https:\/\/earthjay.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/earthjay.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/earthjay.com\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/earthjay.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2494"}],"version-history":[{"count":0,"href":"https:\/\/earthjay.com\/index.php?rest_route=\/wp\/v2\/posts\/2494\/revisions"}],"wp:attachment":[{"href":"https:\/\/earthjay.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2494"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/earthjay.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2494"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/earthjay.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2494"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}