Category Archives: alaska

Earthquake Report: Alaska Update

Thanks to Jamie Gurney, I took a looksie at the Kaktovik earthquake sequence again. He had interpreted this sequence to possibly represent an extensional step over in a right-lateral (dextral) strike-slip tectonic fault system. I do not include much background … Continue reading

Posted in alaska, arctic, College Redwoods, earthquake, education, geology, plate tectonics, strike-slip

Earthquake Report: Andreanof Islands, Aleutians

Well, yesterday while I was installing the final window in a reconstruction project, there was an earthquake along the Aleutian Island Arc (a subduction zone) in the region of the Andreanof Islands. Here is the USGS website for the M … Continue reading

Posted in alaska, College Redwoods, earthquake, education, geology, pacific, plate tectonics, subduction, tsunami

Earthquake Report: northern Alaska

Well, I awakened shortly after this M 6.4 earthquake hit the northern part of Alaska, along the north Slope, north of the Brooks Range. My inbox has had a lower frequency of USGS ENS notifications since Kilauea has settled down … Continue reading

Posted in alaska, College Redwoods, earthquake, education, geology, plate tectonics, strike-slip

Earthquake Report: Gulf of Alaska UPDATE #2

I thought it would be interesting to see the seismicity with time. Perhaps this could help us learn about the fault sources associated with this earthquake sequence. I am not sure it worked as some issues cannot be dealt with … Continue reading

Posted in alaska, earthquake, education, geology, pacific, plate tectonics, strike-slip, subduction

Earthquake Report: Gulf of Alaska UPDATE #1

Well. What a firestorm of social media discusions about this earthquake. It seems that, like how we learn so much when earthquakes like this happen, the amount of interacting in public on social media has been growing earthquake by earthquake. … Continue reading

Posted in alaska, earthquake, education, geology, pacific, plate tectonics, strike-slip, subduction

Earthquake Report: Gulf of Alaska!

I was asleep in bed, trying to catch up to prevent myself from getting ill, when there was a large earthquake in the Gulf of Alaska (GA), offshore of Kodiak, Alaska. When I wakened, I noticed a fb message from … Continue reading

Posted in alaska, earthquake, education, geology, pacific, plate tectonics, strike-slip, subduction, Transform

Earthquake Report: Bering fracture zone: UPDATE #1

Well, based upon a comment on twitter, I thought it prudent to review the seismicity of this region at the westernmost part of the western Aleutian Islands. For many years I considered this region part of the subduction zone that … Continue reading

Posted in alaska, earthquake, education, pacific, plate tectonics, strike-slip, subduction, Transform

Earthquake Report: Western Aleutians

We just had an earthquake along the western Aleutian Islands, very close to the international date line. In this region places often have more than two names, depending upon who drew the map. The majority of the Aleutian Islands are … Continue reading

Posted in alaska, earthquake, education, pacific, plate tectonics, strike-slip, subduction

Earthquake Report: Westernmost Aleutian Arc

This earthquake happened a couple weeks ago, but was interesting and I have been looking forward to following up on this with a report. Here is the USGS website for this M 6.8 earthquake. The M 6.8 earthquake happened in … Continue reading

Posted in alaska, earthquake, education, geology, pacific, plate tectonics, strike-slip, subduction, Transform

Earthquake Report: Aleutian Trench

Well, well, well. What have we here. We have some earthquakes that are related to each other and some earthquakes that are not. Less than 2 weeks ago there initiated a sequence of earthquakes along a fault splaying off of … Continue reading

Posted in alaska, earthquake, Extension, geology, plate tectonics, strike-slip, subduction