Category Archives: alaska

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

Earthquake Report: Kamchatka!

This earthquake happened last night as I was preparing course materials for this morning. Initially it was a magnitude 6.9, but later modified to be M 6.9. This earthquake happened in an interesting region of the world where there is … Continue reading

Posted in alaska, earthquake, education, geology, HSU, pacific, plate tectonics, subduction

Good Friday Earthquake 27 March 1964

In March of 1964, plate tectonics was still a hotly debated topic at scientific meetings worldwide. Some people still do not accept this theory (some Russian geologists favor alternative hypotheses; Shevchenko et al., 2006). At the time, there was some … Continue reading

Posted in alaska, education, geology, HSU, pacific, plate tectonics, subduction, tsunami

Earthquake Report: Alaska

We had an earthquake a few days ago along the Cook Strait west of Anchorage, Alaska. This earthquake happened nearby a couple earthquakes from the past 2 years that have similar senses of motion along faults that seem to be … Continue reading

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

Earthquake Report: Bering-Kresla Shear Zone (Russia, west of Aleutians)

If there is an earthquake and nobody is there to feel it, did it shake? Here is the USGS website for the M 6.3 earthquake that occurred in the far western Aleutians, so far west, it is called Russia. Below … Continue reading

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

Earthquake Report: Kamchatka!

A couple weeks ago, there was an earthquake with a magnitude of M 6.4 and today there was an earthquake with a magnitude of M 5.7. I had not put together a report for the M 6.4, so this report … Continue reading

Posted in alaska, asia, College Redwoods, earthquake, education, geology, HSU, plate tectonics, subduction

Earthquake Report: Alaska Peninsula!

Last night we had a shallow crustal earthquake along the Alaska Peninsula. Here is the USGS website for this M = 6.2 earthquake. Below is my interpretive map where I use Google Earth and the kml (keyhole markup language) files … Continue reading

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