Cause and Effect

A tsunami ( Cause )
1. Earthquake
The arrival of tsunami waves to the mainland can be triggered by an earthquake. So do not be surprised if there is an earthquake with the seabed center, the local government will appeal to stay away from the beach until a safe warning of a tsunami disaster. One of the causes of this earthquake is the movement of the plates and the presence of active faults.

2. Volcanic Eruption
Gunugapi eruption or commonly known as volcanic eruption also triggered a tsunami because it would cause volcanic earthquakes. One example of a tsunami caused by a volcanic eruption is the tsunami caused by the eruption of Mount Krakatau.

3. Underwater Landslides
Not only earthquakes and volcanoes, underwater landslides caused by colliding plates can also cause a tsunami disaster called the submarine landslide tsunami.

4. Meteor
If the three factors above are internal factors from inside the earth, this is different from the last factor that comes from outside the earth. The existence of a meteor hit on the sea can trigger a tsunami.

Effect
Negative impact
Eat lots of human and animal victims
Damaging the infrastructure of buildings, plants, and whatever is passed by the waves
Spent a lot of government funds for post-tsunami development
Can increase poverty levels
Eating property

Positive impact
The sense of mutual cooperation is increasing
As learning material if another tsunami occurs
Can identify how strong the construction of buildings affected
Employment increased after the tsunami