Discover and read the best of Twitter Threads about #foreshock

Most recents (2)

(1) Another large #earthquake off the Alaskan coast tonight. IMO sufficiently deep & distant not to cause a major threat to life & property.

What's interesting though, is that two other EQs there in the past yr are considered #foreshocks to this one.…
(2) I wrote a bit about them at the time. They were:

M7.8 on July 22, 2020
M7.6 on October 19, 2020


M8.2 on July 29, 2021
(3) The Canterbury, New Zealand earthquakes of 2010-2011 that I lived through also involved a #foreshock event. Of course, we only find out after the main quake that an earlier one was a foreshock.

The geology of the area is what determines the likelihood of foreshocks.
Read 6 tweets
(1) I have kept any discussion about the cause(s) of the #SurfsideBuildingCollapse out of my thread of ways to help those affected. (Link below.)

Having spent the past 10 years watching hundreds of New Zealand buildings being condemned for seismic risk, I am aghast. Image
(2) Source for the above:…

My other thread, free of engineering talk:

(3) I also wrote about a similar tragedy on March 15, 2018, that cost 6 lives. The collapse of the pedestrian footbridge at Florida International University in West Miami:

Read 25 tweets

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