MANILA, Philippines – Eight earthquakes, many of which occurred within an hour of each other, were recorded east of Burgos town in Surigao del Norte on Sunday, the Philippine Institute of Volcanology and Seismology said.

A 4.1-magnitude tremor which has a depth of 21 kilometers was felt in the eastern part of Burgos at 6:20 a.m.

At 9:43 a.m., a 4.8-magnitue quake was recorded 137 km east of Burgos at a 62-km depth.

The third earthquake, felt at 9:53 a.m., measured 5.3 and rattled the eastern part of Burgos.

At 10:35 a.m., a 4.5-magnitude quake hit Burgos for the fourth time. It was plotted 118 km east of Burgos with a depth of 71 km.

The fifth tremor, measured 5.5 and located 113 km east of Burgos with a depth of 85 km, occurred at 10:43 a.m.

At 11:04 a.m., a 4.9-magnitude shake was recorded 117 km east of Burgos with a depth of 125 km.

A small earthquake measuring 3.5 magnitude struck at 11:37 a.m. It was located 116 km east of the town with a depth of 62 km.

The eighth earthquake happened at 2:15 p.m. and it measured 4.2-magnitude. It was located 57 km of Burgos and has a depth of 7 km.

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