Question

one effect of the 2004 indian ocean tsunami was the establishment of early warning systems. how do these systems reduce the impact of future disasters? early warning systems stop tsunami waves from reaching the shore by dispersing the energy of the waves. early warning systems prevent earthquakes and tsunamis from occurring by detecting tectonic plate movements in advance. these systems give communities advance notice of an underwater earthquake, allowing them to evacuate before a tsunami reaches the shore. early warning systems direct ships away from potential tsunami zones, reducing economic losses in coastal regions.

Explanation:

Early - warning systems detect earthquakes and tectonic plate movements to give advance notice, allowing communities to evacuate before a tsunami reaches the shore. They can also direct ships away from potential tsunami zones to reduce economic losses. They do not stop or disperse tsunami waves.

Answer:

These systems give communities advance notice of an underwater earthquake, allowing them to evacuate before a tsunami reaches the shore.
Early warning systems direct ships away from potential tsunami zones, reducing economic losses.
Early warning systems detect earthquakes and tectonic plate movements in advance.