Another strong aftershock hits Bohol
MANILA – A 5.4-magnitude aftershock from last week's massive quake in Central Visayas hit Bohol on Monday morning, the Philippine Institute of Volcanology and Seismology (Phivolcs) said.
Phivolcs said the epicenter of the 5.4-magnitude quake was recorded 37 kilometers northeast of Tagbilaran City at 7:03 a.m.
The following intensities were felt:
- Intensity V (strong) - San Isidro, Bohol
- Intensity IV (moderately strong) - Metro Cebu
- Intensity III (weak) - Tagbilaran, Bohol
Phivolcs said the quake struck at a depth of 10 kms and was tectonic in origin.
The agency said as of 4 a.m. today, a total of 2,193 aftershocks have been recorded since the 7.2-magnitude quake occurred last October 15.
The United States Geological Survey said magnitude "measures the energy released at the source of the earthquake, and is determined from measurements on seismographs."
Intensity, on the other hand, "measures the strength of shaking produced by the earthquake at a certain location. It is determined from effects on people, human structures, and the natural environment."