[4][5] He is also the chairman of California's Alfred E. Alquist Seismic Safety Commission, which investigates earthquakes and recommends policies for risk reduction.

[8] Miyamoto started his career in structural engineering[2] and later focused on disaster resiliency, response, and reconstruction.

[15] Dr. Miyamoto was responsible for the seismic retrofit of the Theme Building, an iconic Space Age structure at Los Angeles International Airport (LAX).

The innovative retrofit consisted of adding a tuned mass damper (TMD) to the top of the building's core.

His work focuses on failure mechanisms and improved construction practices to reduce future earthquake risks.