Philippines: Several tremors were reported in eastern Philippines, with the first jolt felt at around 14:08 UTC (6:08 pm UAE time) on Thursday. Local residents of Naga City told Gulf News many scampered for a safe ground when the earth shook at about 10pm.
Initial reports on the ground gave no details of damage. Volcanologists reported the initial temblor's depth at 7km. "It's unusually strong. We rarely feel such magnitude of earthquakes in this area," local resident Bernadette B., told Gulf News.
Tweep @NCSHS_Naguenian shared the video captured accidentally captured by Gayle Baturiano, a student of Naga City Science High School. "When the earthquake hit, I was shocked because the tremor was quite strong," she was quoted as saying.
The epicenter of the initial 4.2 magnitude earthquake was located at Canaman, Camarines Sur, according to PHIVOLCS. Several after-shocks were also reported by residents and volcanologists. The latest one, a magnitude 3.9 tremor, shook about the area at 1.20am, October 15 (9.20 UAE), at a depth of 5km.
The following intensities were felt based on ground instruments (all in eastern Philippines), first tremor October 14:
Intensity VI - Pili, Camarines Sur
Intensity V - Sipocot, Camarines Sur
Intensity III - Iriga City, Camarines Sur
Intensity II - Legazpi City, Albay
Intensity I - Mercedes, Camarines Norte
Mount Isarog, also known as Vulcan de Agua, is a known stratovolcano located in the province of Camarines Sur, Philippines, on the island of Luzon. It last erupted in 3,500 BC, based on radiocarbon date of pyroclastic flows from its lava dome. The mountain has active fumaroles and hot springs. Its vent displays gas seepages, warm springs, and steaming vents. It has an elevation of 2,000 metres (6,600 ft).