{"id":2187,"date":"2015-02-21T11:43:53","date_gmt":"2015-02-21T19:43:53","guid":{"rendered":"http:\/\/earthjay.com\/?p=2187"},"modified":"2015-02-21T11:43:53","modified_gmt":"2015-02-21T19:43:53","slug":"tohoku-oki-aftershocks-are-in-a-region-of-low-slip-during-main-events-in-2011","status":"publish","type":"post","link":"https:\/\/earthjay.com\/?p=2187","title":{"rendered":"Tohoku-Oki aftershocks are in a region of low slip during main events in 2011"},"content":{"rendered":"<p>Here is what I was getting at in my last post. I have taken the Ammon et al. (2011) slip model and placed it into a real world reference frame (rubbersheeted it in ArcGIS). Then I exported it as a kml file and placed it into google Earth where I can also plot the recent seismicity.<br \/>\n<strong>There are several report updates, listed here:<\/strong><\/p>\n<ul>\n<li>2015.02.16 <a href=\"http:\/\/earthjay.com\/?p=2154\">M 6.7 Japan<\/a> Sanriku Coast &#8211; Main Report<\/li>\n<li>2015.02.16 <a href=\"http:\/\/earthjay.com\/?p=2168\">M 6.7 Japan<\/a> Sanriku Coast Update #1<\/li>\n<li>2015.02.16 <a href=\"http:\/\/earthjay.com\/?p=2174\">M 6.7 Japan<\/a> Sanriku Coast Update #2<\/li>\n<li>2015.02.20 <a href=\"http:\/\/earthjay.com\/?p=2183\">M 6.7 Japan<\/a> Sanriku Coast Update #3<\/li>\n<li>2015.02.21 <a href=\"http:\/\/earthjay.com\/?p=2187\">M 6.7 Japan<\/a> Sanriku Coast Update #4<\/li>\n<li>2015.02.25 <a href=\"http:\/\/earthjay.com\/?p=2197\">M 6.3 Japan<\/a> Sanriku Coast Update #5<\/li>\n<\/ul>\n<p>Here are the USGS web pages for the thrree largest magnitude earthquakes I plot in the map below:<\/p>\n<ul>\n<li><a href=\"http:\/\/earthquake.usgs.gov\/earthquakes\/eventpage\/usb000tpvj#general_summary\" target=\"_blank\" rel=\"noopener noreferrer\">Mw 6.7<\/a> 2015 Feb 20<\/li>\n<li><a href=\"http:\/\/earthquake.usgs.gov\/earthquakes\/eventpage\/usc000trsc#general_summary\" target=\"_blank\" rel=\"noopener noreferrer\">Mw 6.3<\/a> 2015 Feb 21<\/li>\n<li><a href=\"http:\/\/earthquake.usgs.gov\/earthquakes\/eventpage\/usc000ts49#general_summary\" target=\"_blank\" rel=\"noopener noreferrer\">Mw 6.0<\/a> 2015 Feb 21<\/li>\n<\/ul>\n<p>Here is a map showing the three largest magnitude earthquakes in this recent seismic swarm. Check out my <a href=\"http:\/\/earthjay.com\/?p=2183\" target=\"_blank\" rel=\"noopener noreferrer\">previous post<\/a> here to see other slip models, estimates of stress change due to the 2011 March 11 Tohoku-Oki earthquake, and how these relate to historic slip models.<br \/>\n<a href=\"http:\/\/earthjay.com\/earthquakes\/20150220_japan\/20150221_japan_interpretation.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"><br \/>\n<img decoding=\"async\" src=\"http:\/\/earthjay.com\/earthquakes\/20150220_japan\/20150221_japan_interpretation.jpg\" width=\"100%\" alt=\"\" \/><\/a><br \/>\nHere is the Ammon et al. (2011) figure.<br \/>\n<a href=\"http:\/\/earthjay.com\/earthquakes\/20150220_japan\/ammon_etal_2011_slip_tohoku_fig_1.PNG\" target=\"_blank\" rel=\"noopener noreferrer\"><br \/>\n<img decoding=\"async\" src=\"http:\/\/earthjay.com\/earthquakes\/20150220_japan\/ammon_etal_2011_slip_tohoku_fig_1.PNG\" width=\"100%\" alt=\"\" \/><\/a><br \/>\nThese hypocenters continue to align with the probable location of the subduction zone fault based on the <a href=\"http:\/\/earthquake.usgs.gov\/data\/slab\/\" target=\"_blank\" rel=\"noopener noreferrer\">Hayes slab model<\/a>.<br \/>\n<a href=\"http:\/\/earthjay.com\/earthquakes\/20150220_japan\/20150221_japan_regional_map_slab.PNG\" target=\"_blank\" rel=\"noopener noreferrer\"><br \/>\n<img decoding=\"async\" src=\"http:\/\/earthjay.com\/earthquakes\/20150220_japan\/20150221_japan_regional_map_slab.PNG\" width=\"100%\" alt=\"\" \/><\/a><br \/>\nReferences:<\/p>\n<ul>\n<li>Ammon et al., 2011<\/li>\n<li><a href=\"http:\/\/www.agu.org\/pubs\/crossref\/2012\/2011JB008524.shtml\" target=\"_blank\" rel=\"noopener noreferrer\">Hayes, G. P., D. J. Wald, and R. L. Johnson (2012)<\/a>, Slab1.0: A three-dimensional model of global subduction zone geometries, J. Geophys. Res., 117, B01302, doi:10.1029\/2011JB008524.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<div class=\"entry-summary\">\nHere is what I was getting at in my last post. I have taken the Ammon et al. (2011) slip model and placed it into a real world reference frame (rubbersheeted it in ArcGIS). Then I exported it as a&hellip;\n<\/div>\n<div class=\"link-more\"><a href=\"https:\/\/earthjay.com\/?p=2187\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &ldquo;Tohoku-Oki aftershocks are in a region of low slip during main events in 2011&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":[49,5,6,7,14,27,34],"tags":[],"aioseo_notices":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/earthjay.com\/index.php?rest_route=\/wp\/v2\/posts\/2187"}],"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=2187"}],"version-history":[{"count":0,"href":"https:\/\/earthjay.com\/index.php?rest_route=\/wp\/v2\/posts\/2187\/revisions"}],"wp:attachment":[{"href":"https:\/\/earthjay.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2187"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/earthjay.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2187"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/earthjay.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2187"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}