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Category Archives: plate tectonics
Earthquake Report: Mendocino fault
I was in Humboldt County last week for the Redwood Coast Tsunami Work Group meeting. I stayed there working on my house that a previous tenant had left in quite a destroyed state (they moved in as friends of mine). … Continue reading
Posted in cascadia, earthquake, education, geology, gorda, mendocino, pacific, plate tectonics, San Andreas, San Francisco, strike-slip, subduction, Transform
Earthquake Report: Cayman Islands
Contrary to what some people spread around on the internets (some of them major earthquake experts), strike-slip earthquakes can and do generate tsunami (just like this one). More on this below. I am in Portland, Oregon this week, attending the … Continue reading
Posted in caribbean, earthquake, education, geology, plate tectonics, strike-slip, tsunami
Earthquake Report: East Anatolia fault zone
This M 6.7 earthquake was the result of slip probably along a left-lateral strike-slip fault associated with the East Anatolia fault zone (EAF). The event was shallow and produced strong ground shaking in the region. https://earthquake.usgs.gov/earthquakes/eventpage/us60007ewc/executive As I write this, … Continue reading
Posted in earthquake, education, europe, geology, mediterranean, middle east, plate tectonics, strike-slip
Earthquake Report: 1989 Loma Prieta!
Well, I prepared this report for the 30th anniversary of the 18 Oct 1989 Loma Prieta M 6.9 earthquake in central California, a.k.a. the World Series Earthquake (it happened during the 1989 World Series game at Candlestick Park in San … Continue reading
Posted in earthquake, education, geology, plate tectonics, San Andreas, San Francisco, strike-slip, Transform, Uncategorized
Earthquake Report: Sunda Strait, Indonesia
Around the beginning of the month, I was helping get a fundraiser prepared for a weekend concert series (audio crew for load in and strike; stage manager during the show). So, I was away from the computers when there was … Continue reading
Posted in earthquake, education, geology, plate tectonics, strike-slip, subduction
Earthquake Report: Ridgecrest Update #3 Literature Review
I have reviewed a small portion of the literature for the tectonics of the northern Eastern California shear zone, Owens Valley fault, Garlock fault, etc. I have a basic knowledge of this region and have attended several Pacific Cell Friends … Continue reading
Posted in earthquake, education, geology, plate tectonics, San Andreas, strike-slip, Transform
Earthquake Report: Ridgecrest Update #2
Summary of Reports for the Ridgecrest Earthquake Sequence The original Earthquake Report for this widely felt sequence is here. The update #1 Earthquake Report for this widely felt sequence is here. The update #2 Earthquake Report for this widely felt … Continue reading
Posted in earthquake, education, geology, plate tectonics, San Andreas, strike-slip
Earthquake Report: Halmahera, Indonesia
Well, yesterday I was preparing some updates to the Ridgecrest Earthquake following my field work with my colleagues at the California Geological Survey (where I work) and the U.S. Geological Survey. We spent the week documenting surface ruptures associated with … Continue reading
Posted in collision, earthquake, education, geology, Indonesia, plate tectonics, tsunami
Earthquake Report: Ridgecrest, CA
Summary of Reports for the Ridgecrest Earthquake Sequence The original Earthquake Report for this widely felt sequence is here. The update #1 Earthquake Report for this widely felt sequence is here. The update #2 Earthquake Report for this widely felt … Continue reading
Posted in earthquake, education, geology, plate tectonics, strike-slip
Earthquake Report: Indonesia
I had been making an update to an earthquake report on a regionally experienced M 5.6 earthquake from coastal northern California when I noticed that there was a M 7.3 earthquake in eastern Indonesia. https://earthquake.usgs.gov/earthquakes/eventpage/us600044zz/executive This earthquake is in a … Continue reading
Posted in earthquake, education, Indonesia, New Zealand, pacific, plate tectonics, strike-slip, Transform