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

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Month: March 2016

Volcano Report: Pavlof

Posted on: March 27, 2016 Last updated on: March 27, 2016 Written by: Jay Patton Comments: 0
Pavlof Volcano (PV) is erupting. PV is located near Sand Point Alaska, along the eastern Aleutian Magmatic Arc. The Alaska Volcano Observatory placed the PV into alert level “warning” and aviation color code red. Below is the description of the…
Continue reading “Volcano Report: Pavlof”…

Earthquake Report: Nikolski!

Posted on: March 27, 2016 Last updated on: March 27, 2016 Written by: Jay Patton Comments: 4
As I was writing my page on the 1964 Great Alaska Earthquake (here), there was a M 5.7 earthquake along the Aleutian Trench east of the Amlia fracture zone. Here is the USGS web page for this earthquake. The region…
Continue reading “Earthquake Report: Nikolski!”…

Good Friday Earthquake: 1964/03/27 in Alaska

Posted on: March 27, 2016 Last updated on: March 27, 2025 Written by: Jay Patton Comments: 3
Today we commemorate the Good Friday Earthquake, which occurred on March 27, 1964. This is the second largest earthquake ever recorded on modern seismographic instruments. I summarize some of the information that we have about this earthquake, but this is…
Continue reading “Good Friday Earthquake: 1964/03/27 in Alaska”…

Earthquake Report: Explorer plate!

Posted on: March 19, 2016 Last updated on: March 19, 2024 Written by: Jay Patton Comments: 2
We just had an earthquake along a fracture zone within the Explorer plate. The Explorer plate is the northernmost subducting plate in the Cascadia subduction zone system. I post material about the CSZ here and here. Below is my earthquake…
Continue reading “Earthquake Report: Explorer plate!”…

Earthquake Report: Atka strikes again!

Posted on: March 19, 2016 Last updated on: March 19, 2016 Written by: Jay Patton Comments: 2
Today we had another cluster of seismic activity in the Aleutians, just west of the Amlia fracture zone. This series of earthquakes occurred just west of some earthquakes from last week or so. Here is my earthquake report for those…
Continue reading “Earthquake Report: Atka strikes again!”…

Earthquake Report: Aleutians, Atka (near Amlia fracture zone)!

Posted on: March 12, 2016 Last updated on: March 12, 2016 Written by: Jay Patton Comments: 4
This morning we had a series of earthquakes along the Aleutian trench near Atka and the Amlia fracture zone. This is a very active part of this plate boundary and I summarize some of this below. The USGS has a…
Continue reading “Earthquake Report: Aleutians, Atka (near Amlia fracture zone)!”…

Earthquake Report: Sumatra!

Posted on: March 2, 2016 Last updated on: March 2, 2016 Written by: Jay Patton Comments: 1
We just had a M = 7.8 earthquake southwest of the Island of Sumatra, a volcanic arc formed from the subduction of the India-Australia plate beneath the Sunda plate (part of Eurasia). Here is the USGS website for this earthquake.…
Continue reading “Earthquake Report: Sumatra!”…
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