{"id":2138,"date":"2015-02-04T21:55:35","date_gmt":"2015-02-05T05:55:35","guid":{"rendered":"http:\/\/earthjay.com\/?p=2138"},"modified":"2015-02-04T21:55:35","modified_gmt":"2015-02-05T05:55:35","slug":"panama-fracture-zone-strikes-again","status":"publish","type":"post","link":"https:\/\/earthjay.com\/?p=2138","title":{"rendered":"Panama fracture zone strikes again"},"content":{"rendered":"

We have another earthquake along the Panama fracture zone (PFZ) plate boundary. There are numerous sub-parallel transform (strike-slip) faults in this region. The most recent earthquake is a M = 5.7<\/a> and is plotted as the most southerly orange dot in this map. Orange denotes a hypocentral depth of 0-33 km. There was a swarm further to the north in May of 2014<\/a>.
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\nHere is the same map with historic earthquakes plotted as grey circles. Note how many of them align with the PFZ.
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\nHere is a zoomed in view (“larger” scale than the above maps). One may observe the north-south oriented ridges in the sea floor. These are the various faults associated with this plate boundary. There appear to be 4 or 5 major faults.
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\nThis map is also at a regional scale and shows how broadly distributed the seismicity is along the PFZ.
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\nToday’s M = 5.7 earthquake is just to the south west of the M = 5.1 from 1\/31\/15 plotted on this map. I discussed the PFZ on an earlier post<\/a>.
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\nHere is the moment tensor from this M = 5.7 earthquake. It matches the earlier quakes and, with the knowledge of the faults in the region (the PFZ), I interpret this earthquake to be right lateral strike slip.
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\nWe have another earthquake along the Panama fracture zone (PFZ) plate boundary. There are numerous sub-parallel transform (strike-slip) faults in this region. The most recent earthquake is a M = 5.7 and is plotted as the most southerly orange dot…\n<\/div>\n
Continue reading “Panama fracture zone strikes again”<\/span>…<\/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":[49,5,6,7,27,37],"tags":[],"aioseo_notices":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/earthjay.com\/index.php?rest_route=\/wp\/v2\/posts\/2138"}],"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=2138"}],"version-history":[{"count":0,"href":"https:\/\/earthjay.com\/index.php?rest_route=\/wp\/v2\/posts\/2138\/revisions"}],"wp:attachment":[{"href":"https:\/\/earthjay.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2138"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/earthjay.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2138"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/earthjay.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2138"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}