Two nights ago I was out with my new camera and telescope and took some pictures of the moon. I was unable to view and process the images until last night. I was so incredibly exited at not only looking at the moon through the scope but also imaging it becuase you can so easily make out the features which we commonly use as evidence for electrical scarring: raised centers of craters, flat floors, steep walls, crater chains, overlapping craters which leave the originial crater undisturbed. You can see these feature in the below image!

When I got the opportunity to process and view the images I had obtained I quickly began to notice some other striking features. I have seen pictures, and read about how they are formed here, of hexigon shaped craters but I was incredibly exited to find that I had imaged some myself. In the following picture I have outlined a few of the hexigon shaped craters which were especially distinct.

While showing this to my family my mother was quick to point out a crater which was distictly square in shape. I could hardly believe it! I had never heard of square craters! (I later searched on the net to find that there are many square craters but, like so many other things, we never hear about them as they do not fit standard theory.) After I began to look very closely I notice another crater just above it which has a hexigonal shape to it but was elongated and even had an elongated center which is raised. The following image shows the elongated crater outlined in blue and the distict square crater, which was pointed out to me, in red.

The next image shows the same area without outlines.

Upon a little further examination I found a much larger crater which has a square shape as well, although not as distict or "perfect" as the smaller one. The square crater is highlighted in red and a hexigon shaped crater is highlighted in blue for shape comparison.

The following image shows the same area without the oulines.

I am familiar with the raised centers and hexigon shapes a result of diocotron instability in the plasma discharge, however, I am not sure how squares are created. I assume it is a result of the same effect in that, depending on the amount of energy, the instability can have different numbers of "corners" or filaments which are temperarily stable.
http://www.holoscience.com/news.php?article=re6qxnz1 I am correct in this assumption? Some clarification would be great!
Also, I am at a total loss as to how the elongated crater with the elongated raised center would form. Could anyone give me any insight?