The earthquake that hit Guinayangan, Quezon, was a tectonic earthquake. Tectonic earthquakes occur due to the movement of the Earth's tectonic plates, which can lead to the release of energy along fault lines. In the case of Guinayangan, the region is situated in an area that is seismically active, making it susceptible to such earthquakes. The specific characteristics of the earthquake, including its magnitude and depth, would provide further insights into its impact and the geological context.