Magnitude-5.1 quake rocks parts of Visayas

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Metro Manila (CNN Philippines, November 8) — A magnitude-5.1 earthquake shook a number of areas in the Visayas Friday afternoon.

The tremor struck offshore 33 kilometers southwest of Guiuan, Eastern Samar at 1:31 p.m., the Philippine Institute of Volcanology and Seismology (Phivolcs) said.

It said the quake was tectonic in origin – or there was a movement in the Earth's crust – with a depth of three kilometers. According to Phivolcs, shaking is more felt when quakes have lower depth.

A "moderately strong" intensity 4 was felt in Borongan City in the same province. Intensity 3 was recorded in Palo, Leyte and San Francisco, Southern Leyte; intensity 2 in Surigao City, and intensity 1 in Ormoc City and Gingoog City.

Phivolcs said aftershocks are expected.

Parts of Mindanao are still recovering from the series of earthquakes that left at least 23 people dead last week.