Ross Stein — Thank you, Alessandro. I added the Okada et al (1994) reference; I did not see much other Yangsan Fault work in Google Scholar.

Pablo Ampuero — A nice complement to this post could be a post that empowers laypeople to identify if they are living in (or about to rent) an unreinforced …

Dal Stanley — THere are some good papers out there on the junction where the quake occurred. Here is a great figure from this paper to which I added the …

Roger Bilham — Armen,Imagine a grocer weighing 1 kg of coffee beans on an old-fashioned balance scale. The bag weighs 0.99 kg and it tilts clockwise …