Answer:
epicenter - the point of the earth's surface that is literally above the earthquake's focal point.
focus - also known as hypocenter, a point in the mantle or upper crust where the energy is released.
magnitude - is a measure of the size of an earthquake based on the quantity of energy released.
seismograph - an apparatus used to record details of earthquake, such as time, duration, or its vibrations.
PHIVOLCS - Philippine Institute of Volcanology and Seismology
Intensity - describes the severity of earthquake in terms of its effects, on the earth's surface, as well as on humans and their structures.
Ritcher Scale - a scale used for measuring of an earthquake.
