Monthly Archives: July 2016

#EarthquakeReport Mariana Trench!

Earlier this year, there was an intermediate depth earthquake along the Mariana Trench with a magnitude of M 7.7. I was traveling and did not have the opportunity to prepare a report at the time. While getting together my annual … Continue reading

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

Earthquake Report: Bayside (northern California): Update #1

So, I put together another map with today’s earthquake in context with the historic seismicity and some other factors. Now the USGS magnitude is M = 4.7 and there is a moment tensor for this earthquake (that looks very similar … Continue reading

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

Earthquake Report: Bayside (northern California)

Well, after installing a stilling basin for our new tide gage installation at Trinidad, CA, I was napping in my upstairs bedroom in Manila, CA. I was awakened by a short (2-3 second) short shaking earthquake. Turns out it was … Continue reading

Posted in cascadia, geology, gorda, HSU, humboldt, plate tectonics, strike-slip, subduction, tsunami

Friends of the Arcata Marsh 2016.07.22

I present material about the Cascadia subduction zone for the Friends of the Arcata Marsh (FOAM) held on 7/22/16 at the Arcata Marsh Interpretive Center. This page has some supporting material from this presentation, including the digital presentation file. The … Continue reading

Posted in cascadia, earthquake, education, geology, HSU, humboldt, plate tectonics, subduction, tsunami