Today is Tuesday, November 11, 2023. My site office was preparing for the earthquake seismology meeting program presented by Dr.Paiboon Nuannin, which starts at 9.30 a.m. and ends at 5.00 p.m. Major topics in this meeting will be the detailing of the origin, type, and how to measure the earthquake. In my opinion, every engineer in our project should have this knowledge for use in the design, construction and installation of dam sites to receive a high-performance work.