Strike Slip in the Gulf. These transform faults connect the Cascadia subduction zone (CSZ) with the Middle America trench (MAT). Transform faults are strike skip fault systems that connect spreading mid oceanic spreading ridges. The northern end of this transform…
Alaska Earthquakes
The 1964 Great Alaska Earthquake occurred on Good Friday, March 27th. It and rocked the state with strong ground shaking for 4.5 minutes. At magnitude 9.2, it was the second largest quake ever recorded by seismometers. This animation shows the…
M 7.1 Panguna, Papua New Guinea
Here is a deep one (currently) and a big one. There may be a local tsunami, but there are no focal mechanisms yet. Ill add those when they become available. Here is a screenshot from the
Mw 7.1 Phillipines 2013.10.15
Fairly big earthquake. Sounds like it has caused some damage. Farly big earthquake. Sounds like it has caused some damage. Looks like a thrust or reverse earthquake, USGS poses the fault is in the Sunda crust. Fairly deep earthquake, but…
Ken Aalto Talk on the Franciscan Today 10/14/13
Today at HSU Founders Hall Room 25 at 5PM
Mw 4.9 Trinidad 2013.10.11
All right! That was exciting and a little bit scary. Most all earthquakes scare me because I recognize they might get bigger or trigger a bigger one. This earthquake is most likely on a northeast striking strike-slip fault in the…
M7.7 in Pakistan
A very large earthquake in Pakistan today! As a result of collision of the Arabia plate into the Eurasia plate, thrust faults formed in Pakistan. This collision zone is the same basic convergence region that extends from Java/Sumatra, up through…
IPCC 5th Assessment Report Forthcoming
Coming out later this month here http://www.climatechange2013.org/report/ i pasted some text from the group I fact sheet that demonstrates why the IPCC assessment reports are the most comprehensive and peer reviewed science ever. 9,200 references! ~55,000 comments! no single paper…
Updated Dissertation Files
I have organized my three papers. These are in a state of flux and I hope to submit them to my committee shortly. Here is the draft of my first paper, I will be submitting this to Geosphere shortly. Here…
M 7.0 on the Aleutian subduction zone
Here is another pretty big earthquake. Those on the islands of Adak and Atka probably got shook pretty strongly. The moment tensor shows a compressional earthquake and this is consistent with this setting on a subduction zone. If this EQ…