Monthly Archives: January 2017

Earthquake Report: 1700 Cascadia subduction zone 317 year commemoration

Today (possibly tonight at about 9 PM) is the birthday of the last known Cascadia subduction zone (CSZ) earthquake. There is some evidence that there have been more recent CSZ earthquakes (e.g. late 19th century in southern OR / northern … Continue reading

Posted in cascadia, earthquake, education, geology, gorda, HSU, humboldt, oregon, pacific, plate tectonics, San Andreas, subduction, Transform, tsunami, washington

Earthquake Report: Bougainville! (western equatorial Pacific)

Last night (my time) we had a large earthquake along a plate boundary that is one of the most tectonically active regions in the world. There was an earthquake with a magntude of M 7.9 along the San Cristobal Trench … Continue reading

Posted in Uncategorized

Earthquake Report: Celebes Sea!

Catching up on some earthquake reports on a Friday night. This earthquake happened on 2017.01.10 in a region to the west of the Molluca Strait. I have reported on Molucca Strait earthquakes several times before as this is a very … Continue reading

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

Earthquake Report: Arctic!

Well, I put this and my next earthquake report together shortly after these earthquakes happened, but I was otherwise busy before I could present them online. There was an earthquake in the Arctic on 2017.01.08, along the channel of one … Continue reading

Posted in arctic, collision, earthquake, education, geology, HSU, plate tectonics

Earthquake Report: 1994 Northridge!

Today is the anniversary of the 1994 M 6.7 Northridge Earthquake. I was living in Arcata at the time (actually in my school bus in a driveway to save money). I remember calling my mom from a pay phone to … Continue reading

Posted in collision, earthquake, education, geology, HSU, los angeles, plate tectonics, San Andreas

Earthquake Report: Explorer plate!

In the past 2 days there have been a few earthquakes in the Explorer plate region along the Pacific-North America plate boundary. On March 19 of this year there was a series of earthquakes in this same region (to the … Continue reading

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

Earthquake Report: North Fiji Basin!

We just had a large earthquake along the West Fiji Ridge, one of the spreading ridges that forms the North Fiji Basin. Here is the USGS website for this M 7.2 earthquake. This earthquake was relatively shallow and, probably since … Continue reading

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

Earthquake Report: 2016 Summary Cascadia

Here I summarize the seismicity for Cascadia in 2016. I limit this summary to earthquakes with magnitude greater than or equal to M 4.0. I reported on all but five of these earthquakes. I put this together a couple weeks … Continue reading

Posted in cascadia, earthquake, education, geology, gorda, HSU, humboldt, mendocino, mendocino, oregon, pacific, plate tectonics, San Andreas, strike-slip, subduction, Transform, tsunami

Earthquake Report: 2016 Summary

Here I summarize the global seismicity for 2016. I limit this summary to earthquakes with magnitude greater than or equal to M 7.0. I reported on all but two of these earthquakes. There were no earthquakes as large as an … Continue reading

Posted in earthquake, education, geology, HSU, plate tectonics