I bought this book because I'd read and enjoyed some of Clarke's earlier works like 2010: Odyssey II when I was a teenager.
The first disappointing thing about this book is that it's not actually written by Clarke at all, despite his name being emblazoned in inch-high lettering on the cover. All that Clarke did, as he explains in the introduction, is to write a 2 page plot outline, which he passed onto someone else because he was too lazy / untalented to write it himself. By the time you read this proviso, however, you've probably already shelled out the cover price and feeling short-changed.
Second, McQuay's prose is in an awful Americanised style, full of 2D stock characters, and transparently written with the intention on being converted into a Hollywood action thriller so they can make a ton of money. Hardly high literature. Science fiction writers trying to do characterisation never worked anyway, and it misses the point.
Third, the "science" behind the book is woefully inaccurate. At least Michael Crichton meticulously researched the genetics content of Jurassic Park: it had a basis in reality, was thought-provoking and you could learn something from it. Richter 10, on the other hand, is pure trashy fantasy. Clarke knows less about geology and earthquakes than the average GCSE student, and clearly didn't do any research before the afternoon he cobbled together his plot outline. For instance, he envisages California being split off from mainland America after a particularly large quake... when the San Andreas fault is actually a strike-slip boundary which only involves sideways motion, rather than extension, so this could never happen.
In summary, then, it's a terrible read, with no interesting science, and Clarke didn't even write it.