This one is large and fairly deep. Here is the USGS web page for this earthquake. There are several aftershocks, the largest so far is M 6. Today’s earthquakes are located along the Aleutian subduction zone, nearby the Bolan Ridge…
Panama Aftershocks Reveal Likely Fault Solution
All rightee… We have a number of aftershocks that are lighting up the potential fault that ruptured a couple days ago. Here is my page for this earthquake. Here is the USGS page. The aftershocks are aligned with the north-south…
SSA 2014 Photos
I have placed some photos into a basic photo gallery. These are from the 2014 Seismological Society of America Meeting in Anchorage, Alaska.
1964 Earthquake Animation
Here is a simulation of the 1964 earthquake. I found this posted online on livescience (they do not typically provide a link to the original content, but repost without attribution) but here is the source. Carl is an assistant professor of…
Earthquake offshore Panama
Good sized earthquake offshore Panama! Here is the USGS page. This is probably an earthquake on an oblique high angle reverse fault, based on this early moment tensor. The hypocentral depth is pretty shallow too. This looks related to the…
Update Commentary on the OSO Slide: Scott Burns
Scott Burns, emeritus at Portland State and a student of Peter Birkeland, wrote an excellent article about the OSO Slide. I made a few animations and armchair interpretations about this slide shortly after it happened (here). Scott discusses the geologic…
1964 Great Alaska Earthquake: Before and After Photos
I just got back from a great Seismological Society Meeting in Anchorage, Alaska. The meeting was held there in part to celebrate the 50th anniversary of the 1964 Great Alaska Earthquake. I will post more online in the coming week.…
Vancouver Isle M 6.6 Earthquake
Interesting little swarm here, on the coast of northwestern Vancouver Island. The convergence of these plates results in the Cascadia subduction zone (CSZ), that extends from Cape Mendocino in the South to at least Haida Gwaii in the North (there…
Another triggered earthquake in the Solomon Islands
This is a very interesting part of the world, where subduction and transform faults interact with each other. The New Britain trench is linked to the New Hebrides trench with a plate boundary fault. Based on plate motions, this could…
Solomon M 7.6 aftershocks
The aftershocks continue to light up the earthquake fault that is participating in the part of the three pronged swarm in this region, I mentioned earlier. Two deep swarm regions of compressional earthquakes in the north, with this strike slip…