Category Archives: earthquakes

Why did North Carolina experience a magnitude 5.1 earthquake yesterday?

The location of this earthquake seems a little odd because North Carolina is about as far as it’s possible to get from an active plate boundary – thousands of km from the mid-Atlantic spreading ridge to the east and the … Continue reading

Categories: earthquakes, geology, structures, tectonics

Spooky seismic action at a distance: moderate earthquakes in western US cause submarine landslides in the Gulf of Mexico

This is such a cool study, and such an interesting result! Earthquakes triggering landslides is not a surprise, but surface waves from a magnitude 5.5 earthquake in the Gulf of California triggering a landslide in the Gulf of Mexico (1500 … Continue reading

Categories: earthquakes, geohazards, paper reviews

Two reflections on the largest earthquake yet recorded, 60 years later.

It has been 60 years since a magnitude 9.5 earthquake struck the Chilean coast near Valdivia. The stats for this earthquake remain pretty mind-blowing even today. It is still the largest earthquake ever recorded – over 20% of the Earth’s seismic energy … Continue reading

Categories: earthquakes, geohazards, tectonics

At subduction zones, feeding a complicated plate means you get complicated earthquake behaviour out

What drives the occurrence of slow-slip events on subduction zones: “earthquakes”: that involve strain release over days and weeks rather than seconds? A new paper…doesn’t really answer that question, but it shows why it’s so complicated to answer.  The study uses … Continue reading

Categories: earthquakes, paper reviews, tectonics

Earthquakes of 2018

Just as I did in 2016 and 2017, I thought I’d begin the new year with a look back at the earthquake activity in the last. According to the catalogue maintained by the USGS, the Earth’s ever-grinding tectonic plates produced … Continue reading

Categories: earthquakes, geohazards, society