The text states that natural hazards can be grouped into two major categories: geological hazards and weather-associated hazards. Epidemics, which are outbreaks of infectious diseases, are not classified as geological hazards.

Explanation:

An epidemic is NOT a geological hazard.

Geological hazards refer to natural events or processes that have the potential to cause significant damage or harm to human life and property. These hazards are typically related to the Earth's geological features and processes.

Here is a breakdown of the given options and why they are or are not geological hazards:

1. Earthquake: An earthquake is a sudden and violent shaking of the ground caused by the movement of tectonic plates beneath the Earth's surface. It is a common geological hazard, and it can result in the collapse of buildings, landslides, tsunamis, and other secondary hazards.

2. Cyclone: A cyclone, also known as a hurricane or typhoon, is a large-scale weather system characterized by strong winds and heavy rainfall. While cyclones are not directly caused by geological processes, they can cause widespread destruction and flooding, which can indirectly lead to geological hazards such as landslides and soil erosion.

3. Landslide: A landslide is the rapid movement of a mass of rock, soil, or debris down a slope. It is a geological hazard that can be triggered by various factors such as heavy rainfall, earthquakes, or human activities. Landslides can cause significant damage to infrastructure, homes, and can also result in loss of life.

4. Epidemic: An epidemic refers to the rapid spread of a contagious disease within a specific population or geographic area. While epidemics can have devastating impacts on human health and society, they are not directly related to geological processes. Epidemics are typically caused by biological factors such as viruses, bacteria, or other pathogens.

In conclusion, among the given options, the one that is NOT a geological hazard is an epidemic (Option D).