Wednesday, February 17, 2016

Earthquakes


What are Earthquakes?



A weak to violent shaking of the ground produced by the sudden movement of rock materials below the earth’s surface.

Classes of Earthquakes

Tectonic

These are caused by stresses set up by movements of a dozen or so huge plates that form the Earth’s crust.

Volcanic

These are seldom very large or destructive. They often precede or accompany volcanic eruption.

Artificial (Induced)

These are earthquakes induced by activities such as mining blasts and nuclear experiments.

Where Do Earthquakes Occur and How Often?

Eighty percent (80%) of all earthquakes occur in the Circum-Pacific Belt. Most of these result from the convergent margin activity.

Fifteen percent (15%) occur in the Mediterranean-Asiatic Belt.

The remaining five percent (5%) occur in the interiors of plates and on spreading ridge centers. More than 150,000 quakes strong enough to be felt are recorded each year.




Prepare for Natural Calamities:


What do I do to prepare for in coming natural calamities?

For Storm Surges:

A Storm Surge is an abnormal rise of water on the seashore caused by a low-pressure weather system.

Click here for reminders about Storm Surges

For Floods:

A flood is the rise of water in rivers, creeks, lakes, and other bodies of water which overflows to lower lying areas. This could result to destruction of property and loss of life.

Click here for reminders about floods

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