WTC2 East Face Collapse Initiation Ejections Recorded

The following sequence of images show the initial ejections emerging from the east face during collapse initiation.

There images were taken from a video clip in which the camera was stationary

Each colored line represents one floor height. The colored lines remain stationary so the viewer can see how ejections emerge.


2 distinct horizontal rows of ejections emerge along the white line and lower along the yellow line.



The next 4 images show the emergence and evolution of the first row of ejections:
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g

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d




In the next image a row of ejections slong the lower yellow line begins to form. Note that there are no observable ejections between the 2 distinct rows:


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d

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The first row of ejections along the white line and the lower row along the yellow line are 2 distinct, discontinuous events separated by 3 floors.
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The top row of ejections is along the base of the 78th floor. The bottom row is along the 75th floor sspandrel that supports the beam flooring.
Evolution of the 2 rows can be seen here: