earthquake - Jay Patton online

Earthquake Report: New Hebrides Update #1

Well, as I was writing my initial report, some aftershocks hit. My initial report is(here, where I provide more information about the tectonics). At first I interpreted this M 7.2 earthquake as a northeast striking left-lateral strike-slip earthquake. However, these…

Earthquake Report: New Hebrides

There was just a M 7.2 earthquake between New Caledonia and Fiji. There is a strike slip plate boundary fault in this region that connects the New Hebrides Trench with Fiji. Here is the USGS website for this earthquake. Below…

Toast, tsunamis, and the really big one | Chris Goldfinger | TEDxMtHood

Following an article in the New Yorker on July 20, 2015, the Cascadia subduction zone got more attention nationwide than it had ever seen previously. Most in the pacific northwest knew about Cascadia, but this article brought knowledge of the…

Earthquake Report: Bartlett Springs fault system, Lake Pillsbury

We just had a good sized earthquake adjacent to the mapped surface trace of the Bartlett Springs fault, southeast of Lake Pillsbury. Here is the USGS website for the M 5.1 earthquake. Here is my interpretive map that shows the…

#EarthquakeReport Mariana Trench!

Earlier this year, there was an intermediate depth earthquake along the Mariana Trench with a magnitude of M 7.7. I was traveling and did not have the opportunity to prepare a report at the time. While getting together my annual…

Earthquake Report: Bayside (northern California): Update #1

So, I put together another map with today’s earthquake in context with the historic seismicity and some other factors. Now the USGS magnitude is M = 4.7 and there is a moment tensor for this earthquake (that looks very similar…

Friends of the Arcata Marsh 2016.07.22

I present material about the Cascadia subduction zone for the Friends of the Arcata Marsh (FOAM) held on 7/22/16 at the Arcata Marsh Interpretive Center. This page has some supporting material from this presentation, including the digital presentation file. The…

Earthquake Report: Vanuatu!

We just had a large earthquake in the Vanuatu region, just south of a series of earthquakes from a couple weeks ago. Here is the USGS website for today’s M 7.0 earthquake. I include some figures and animations that I…

Earthquake Anniversary: M 7.8 Gorkha (Nepal) Earthquake

An anniversary is for the Gorkha (Nepal) Earthquake from 1 year ago. I have several Earthquake Reports listed below. These include a variety of observations and comparisons with historic and prehistoric earthquakes that I compiled. USGS slip models: http://earthjay.com/?p=2478 First…

Earthquake Report: Kyushu, Japan!

As I was preparing an aftershock map for yesterday’s earthquake, an earthquake with a magnitude of M = 7.0 happened. This turns all other earthquakes into foreshocks, though this terminology may not really be important (foreshock vs aftershock). The M…

Category: earthquake (page 24)