The correct answer is: Earthquakes.
Manipur is located in a seismically active zone, making it prone to earthquakes. The state has experienced several earthquakes in the past, including a major earthquake in 1957 that killed over 1,500 people. Earthquakes can cause significant damage to infrastructure and property, and can also lead to landslides and other secondary hazards.
Tsunamis are not a major threat to Manipur, as the state is not located near any major fault lines. However, a tsunami could be generated by an earthquake in the Bay of Bengal, and could potentially cause damage to the state’s coastline.
Volcanic eruptions are also not a major threat to Manipur, as the state is not located near any active volcanoes. However, there are a number of dormant volcanoes in the region, and there is a small possibility that one of these volcanoes could erupt in the future.
Landslides are a major hazard in Manipur, as the state is located in a mountainous region. Landslides can be triggered by earthquakes, heavy rains, or deforestation. Landslides can cause significant damage to infrastructure and property, and can also lead to loss of life.