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The Center, Body, and Range of Technically Defensible Interpretations. The CBD of TDI.

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Month: January 2015

Earthquake along the South New Hebrides trench

Posted on: January 30, 2015 Last updated on: January 30, 2015 Written by: Jay Patton Comments: 2
We just had a swarm of shallow seismic activity along the arc above the South New Hebrides trench. The largest magnitude was a Mw 6.0. There was a very deep (~220km) Mw 6.8 just to the north about a week…
Continue reading “Earthquake along the South New Hebrides trench”…

Stress Changes from Strike Slip Faults

Posted on: January 29, 2015 Last updated on: January 29, 2015 Written by: Jay Patton Comments: 0
One may ask what are the relations between the Mendocino fault (MF) and the Cascadia subduction zone (CSZ). Earthquakes on both fault systems are responding to the same plate motions. As the Gorda plate moves to the east, relative to…
Continue reading “Stress Changes from Strike Slip Faults”…

Mendocino fault Aftershocks: Update

Posted on: January 29, 2015 Last updated on: January 29, 2015 Written by: Jay Patton Comments: 8
The aftershocks continue following the Mw 5.7 mainshock earthquake swarm along the Mendocino fault. Yesterday I plotted my interpretation for the location of the fault that this swarm may have ruptured upon. Some epicenters have been relocated and appear to…
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Mendocino fault earthquake 1/28/15 1:08 PM local time

Posted on: January 28, 2015 Last updated on: January 28, 2015 Written by: Jay Patton Comments: 25
We just had a good sized shaker, probably on the Mendocino fault system. Today’s earthquake occurred on 1/28/2015 at 1:08 local time. The mainshock, an earthquake of magnitude Mw = 5.7, has an epicenter approximately 20 km due west of…
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Cascadia’s 315th Birthday

Posted on: January 26, 2015 Last updated on: January 26, 2015 Written by: Jay Patton Comments: 23
On this morning, 315 years ago, the Cascadia subduction zone fault ruptured as a margin wide earthquake. I here commemorate this birthday with some figures that are in two USGS open source professional papers. The Atwater et al. (2005) paper…
Continue reading “Cascadia’s 315th Birthday”…
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