Jay Patton online - The Center, Body, and Range of Technically Defensible Interpretations. The CBD of TDI.

Earthquake Report: Northern Alaska

At shortly before 13:30 today in northern Alaska there was a large earthquake, with a magnitude of M=5.1 (now M 5.0). https://earthquake.usgs.gov/earthquakes/eventpage/ak0193wxcfea/executive Many of us are familiar with the Good Friday earthquake, a megathrust subduction zone earthquake. This earthquake has…

Earthquake Report: Peru

On 01 March 2019 there was an intermediate depth earthquake near the border of Peru and Bolivia. In the past century, this is the first earthquake in this area at this depth. There are some historic quakes to the east,…

Earthquake Report: Ecuador

Well, as I was getting up this morning, my social media feed was abuzz about the intermediate depth earthquake in Peru. While it was quite deep ( Magnetic Anomalies In the map below, I include a transparent overlay of the…

Earthquake Report: Guatemala and Mexico

This morning (my time) there was a moderately deep earthquake along the coast of southern Mexico and northern Guatemala. Here is my Temblor article about this M=6.6 earthquake and how it might relate to the 2017 M=8.2 quake. https://earthquake.usgs.gov/earthquakes/eventpage/us2000jbub/executive Offshore…

Earthquake Report: Chile

There was a very interesting earthquake in central coastal Chile yesterday. I spent some time putting together a Temblor article about it. https://earthquake.usgs.gov/earthquakes/eventpage/us2000j6hy/executive I also took the opportunity to create an interpretive poster in portrait format to help with people…

Earthquake Report: 2018 Summary

Here I summarize Earth’s significant seismicity for 2018. I limit this summary to earthquakes with magnitude greater than or equal to M 6.5. I am sure that there is a possibility that your favorite earthquake is not included in this…

Earthquake Report: Philippines

Earlier there was an earthquake in the Philippines. This magnitude M = 7.0 earthquake is related to the subduction zone that forms the Philippine trench (where the Philippine Sea plate subducts beneath the Sunda plate). Here is the USGS website…

Earthquake Report: Bering Kresla Update #1

Well, the USGS updated their earthquake mechanism (moment tensor) to be more steeply dipping, showing a more vertical fault possibly. This makes more sense given the historic earthquakes in this region and our knowledge of the history of this complicated…

Earthquake Report: Bering Kresla / Pacific plate

We just had a large earthquake in the region of the Bering Kresla fracture zone, a strike-slip fault system that coincides with the westernmost portion of the Aleutian trench (which is a subduction zone further to the east). At first,…

Earthquake Report: New Caledonia / Loyalty Islands

We are still all learning so much about the earthquake in Alaska and as I was winding down for the night (the last class tomorrow before the final), I noticed an email from the Pacific Tsunami Warning Center. There was…

Jay Patton online (page 11) — The Center, Body, and Range of Technically Defensible Interpretations. The CBD of TDI.