As the Earth Trembles

An earthquake begins ________________...

• underground

• above the ground

An earthquake begins underground at the point called the _______________ where stress is suddenly released.

• focus

• epicenter

On the other hand, the ___________ is the point on the Earth's surface...

• focus

• epicenter

On the other hand, the epicenter is the point on the Earth's surface directly ____________.

• above the focus

• above the surface

Now, who determines an earthquake’s depth of focus and epicenter?

• PAGASA

• PHIVOLCS

• PCHRD

An earthquake’s _____________ measures the energy released at the source while ___________ refers to the effects of an earthquake as perceived and felt by people in a certain locality.

• magnitude ; intensity

• intensity ; magnitude

The intensity is generally _________ near the epicenter which is in Culasi, Antique.

• higher

• lower

A tsunami is a series of waves caused commonly by an earthquake ______________.

• on the land

• under the sea