{"id":2132,"date":"2015-02-01T16:38:37","date_gmt":"2015-02-02T00:38:37","guid":{"rendered":"http:\/\/earthjay.com\/?p=2132"},"modified":"2015-02-01T16:38:37","modified_gmt":"2015-02-02T00:38:37","slug":"jan-31-2015-panama-fracture-zone-shakes-it-up","status":"publish","type":"post","link":"https:\/\/earthjay.com\/?p=2132","title":{"rendered":"Jan 31, 2015 Panama fracture zone shakes it up"},"content":{"rendered":"

There was another earthquake along the Panama fracture zone today, following a couple from earlier in the month. Today, there was a Mb 5.1<\/a>, while on 1.16\/2015 there was a Mw 6.6<\/a>. There was a swarm along strike with the PFZ in May of 2014<\/a>.
\nHere is a global scale map.
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\nThis is a more regional\/local scaled map with some interpretations on it. The moment tensor for the Mw 6.6 earthquake is plotted.
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\nHere is Abratis and W\u00f6rner (2001) figure, showing their interpretation of the regional tectonics.
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\nHere is Coates et al. (2004) version.
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\nThis map, from Morell et al. (2013) shows the age of the oceanic crust, drawn in lines that are sub-parallel to the magnetic anomalies in the oceanic crust.
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\nHere is a USGS graphic showing how these magnetic anomalies are recorded and then measured in the oceanic crust.
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\nThis map shows the earthquakes from May of 2014<\/a>.
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\nThis map from Morell et al. (2013) shows the extension of the PFZ beneath Panama, which is probably what was responsible for the earthquakes in May.
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\nAlso, here is a short explanation (from the USGS<\/a>) of the graphical solutions for focal mechanisms. While moment tensors (shown in my interpretation figure above) and focal mechanisms are determined differently, their graphic representation of the deformation from earthquakes is the same.
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\nReferences<\/p>\n