Category Archives: pacific

Earthquake Report: Gorda Rise

It was a busy week (usual, right?). The previous week I was working on getting a house remodel done so someone could move in (they have been sleeping on couches for 6 months, so want to get them in asap). … Continue reading

Posted in cascadia, earthquake, education, Extension, geology, gorda, pacific, plate tectonics

Earthquake Report: Mendocino triple junction

Well, it was a big mag 5 day today, two magnitude 5+ earthquakes in the western USA on faults related to the same plate boundary! Crazy, right? The same plate boundary, about 800 miles away from each other, and their … Continue reading

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

Earthquake Report: Salt Lake City

As I was waking up this morning, I rolled over to check my social media feed and moments earlier there was a good sized shaker in Salt Lake City, Utah. I immediately thought of my good friend Jennifer G. who … Continue reading

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

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: 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

Earthquake Report: Mendocino triple junction

Well, I was on the road for 1.5 days (work party for the Community Village at the Oregon Country Fair). As I was driving home, there was a magnitude M 5.6 earthquake in coastal northern California. https://earthquake.usgs.gov/earthquakes/eventpage/nc73201181/executive I didn’t realize … Continue reading

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

Earthquake Report: Kermadec Trench

There was just an earthquake associated with the plate boundary that forms the Kermadec Trench, a deep oceanic trench that extends north from New Zealand, towards the Fiji Islands. https://earthquake.usgs.gov/earthquakes/eventpage/us6000417i/executive A minor tsunami (~25 cm in size) has been recorded … Continue reading

Posted in earthquake, education, geology, New Zealand, pacific, plate tectonics, subduction, tsunami

Earthquake Report: Chile

This morning (my time) there was a magnitude M 6.4 earthquake offshore of Chile. While it was in the correct location to possibly cause a tsunami, the magnitude was too small. https://earthquake.usgs.gov/earthquakes/eventpage/us600040ja/executive The major plate boundary here is the megathrust … Continue reading

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

Earthquake Report: San Clemente Island

Well, yesterday was the start of a sequence of earthquakes offshore of San Clemente Island, about 100 km west of San Diego, California. The primary tectonic player in southern CA is the Pacific – North America plate boundary fault, the … Continue reading

Posted in earthquake, education, geology, pacific, plate tectonics, San Andreas, strike-slip

Earthquake Report: Peru

Just a moment ago, there was an intermediate depth Great Earthquake (magnitude M≥8.0) beneath Peru. I was heading to bed at about 1:10 local time (Sacramento, CA) when I noticed a tweet from Dr. Anthony Lomax (presenting his first motion … Continue reading

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