A MAGNITUDE 5.9 earthquake shook Mindanao at 9:22 p.m. Monday, with epicenter in Kadingilan, Bukidnon and reported intensities of up to six in different parts of the southern mainland. The tremor comes after three stronger earthquakes in October at magnitudes 6.3 to 6.6 with epicenter in Tulunan, Cotabato. The Kadilingan local disaster management office said no death was immediately reported but at least four people were injured and have been brought to nearby hospitals. Based on the rapid damage assessment, at least 100 houses were affected, with several totally damaged, while a number of public buildings, including schools and government offices, were partially damaged. Classes were suspended on Tuesday to give way to a more thorough inspection. As of 9:45 Tuesday morning, the Philippine Institute of Volcanology and Seismology has recorded 42 aftershocks.