The US Geological Survey reported that a 6.0-magnitude earthquake rocked the southern Philippines on Tuesday. Local officials issued a warning of likely damage and aftershocks. A few kilometres from Maragusan municipality in the hilly province of Davao de Oro on Mindanao island, the shallow earthquake occurred at around 2:00 p.m. (0600 GMT). Authorities were investigating reports of a landslide on a national highway, an employee of the Maragusan disaster office told AFP. He continued, reluctant to disclose his name, "We have not received any reports of more damage or casualties, but we are inspecting the communities around the town. Although there was no damage, the office "everything trembled." The Philippines, which is located within the Pacific "Ring of Fire," a region of strong seismic and volcanic activity that spans from Japan to Southeast Asia and throughout the Pacific basin, experiences earthquakes on a daily basis.