In the wake of the 1990 disaster, the Philippine government developed the Phivolcs Earthquake Intensity Scale (PEIS) the following year to describe the movements during a tremor, according to Ma.

The PHIVOLCS Earthquake Intensity Scale explains an Intensity VII quake as "destructive," possibly inflicting considerable damage on old or poorly-built structures and possible slight damage to even ...

An intensity 8 earthquake is considered "very destructive," according to the Phivolcs Intensity Scale. It may considerably damage many well-built buildings, foundations of bridges, utility posts ...

Based on the Phivolcs Earthquake Intensity Scale, Intensity V means the earthquake was strong, with the following characteristics: is generally felt by most people indoors and outdoors ...

and was felt with a maximum intensity of 7 based on the present-day Phivolcs earthquake intensity scale (PEIS). A PEIS 7 is “very strong” and destructive based on PHIVOLCS’ intensity scale.

which may result in very destructive ground shaking (Intensity 8 on the Phivolcs Earthquake Intensity Scale or PEIS) in the ...

MANILA, Philippines — A magnitude 4.7 earthquake struck off a Cagayan town early Monday in an area frequently hit by tremors, according to state seismologists. The tectonic earthquake occurred ...