F3 Module 5 Unit 5.6

When plates are compressed or stretched,

Pressure is built up in the plates

When the pressure is too great, rock breaks.

Energy is released in all directions as seismic waves.

An earthquake occur

It is because Indonesia is a less developed country.

They have low level of economic development.

They are lack of capital and resources. 

The warning system is ineffective.

So, no early warning could be sent to alert people to take preventive actions.

Christmas is the peak travel season

Many tourists were at the beaches when tsunami waves arrived

1. They construct buildings with earthquake-proof designs.

2. They have effective monitoring and warning system.

e.g. They use seismometers to predict the time and place that earthquakes may occur and provide warnings to alert the public.

1. They are expensive. This increases the financial burden of the government.

2. The present level of technology still cannot predict earthquakes accurately.