1. The PEIS has ten intensity scales represented in Roman numerals with Intensity I being the weakest .

2. Intensity X the strongest

3.PHIVOLCS Earthquake Intensity Scale (PEIS)

Intensity Scale Shaking

VII Destructive

VIII Very Destructive

IX Devastating

X Completely Devastating

4.Felt generally by people indoors and by some people outdoors. Hanging objects swing considerably. Motorcars may rock slightly. Liquids in containers are slightly disturbed.

1. The PEIS has ten intensity scales represented in Roman numerals with Intensity I being the weakest and Intensity X being the strongest.
2. Intensity X (10).
3. Most people are frightened and run outdoors. People find it difficult to stand in upper floors. Heavy objects and furniture overturn or topple. Big church bells may ring. Old or poorly-built structures suffer considerable damage. Some well-built structures are slightly damaged. Some cracks may appear on dikes, fish ponds, road surface, or concrete hollow block walls. Limited liquefaction, lateral spreading and landslides are observed. Trees are shaken strongly. (Liquefaction is a process by which loose saturated sand lose strength during an earthquake and behave like liquid).
4. Felt generally by people indoors and by some people outdoors. Light sleepers are awakened. Vibration is felt like a passing of heavy truck. Hanging objectsswing considerably. Dinner, plates, glasses, windows and doors rattle. Floors and walls of wood framed buildings creak. Standing motor cars may rock slightly. Liquids in containers are slightly disturbed. Water in containers oscillate strongly. Rumbling sound may sometimes be heard.