Category Archives: alaska

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

Volcano Report: Pavlof

Pavlof Volcano (PV) is erupting. PV is located near Sand Point Alaska, along the eastern Aleutian Magmatic Arc. The Alaska Volcano Observatory placed the PV into alert level “warning” and aviation color code red. Below is the description of the … Continue reading

Posted in alaska, College Redwoods, education, geology, HSU, volcanoes

Earthquake Report: Nikolski!

As I was writing my page on the 1964 Great Alaska Earthquake (here), there was a M 5.7 earthquake along the Aleutian Trench east of the Amlia fracture zone. Here is the USGS web page for this earthquake. The region … Continue reading

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

Good Friday Earthquake: 1964/03/27 in Alaska

Today we commemorate the Good Friday Earthquake, which occurred on March 27, 1964. This is the second largest earthquake ever recorded on modern seismographic instruments. I summarize some of the information that we have about this earthquake, but this is … Continue reading

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

Earthquake Report: Atka strikes again!

Today we had another cluster of seismic activity in the Aleutians, just west of the Amlia fracture zone. This series of earthquakes occurred just west of some earthquakes from last week or so. Here is my earthquake report for those … Continue reading

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