The Pacific is surrounded by many volcanoes,and when they erupt,the eruptions trigger tsunamis.However,in the Indian ocean,there is not much underwater activity and there are no volcanic eruptions in a close radius to trigger tsunamis.That is why there are less tsunamis in the Indian ocean than in the Pacific.

Why are tsunamis rare in the Indian Ocean compared to the Pacific Ocean?

Tsunamis, also known as seismic sea waves, are usually caused by underwater earthquakes, volcanic eruptions, or landslides. While both the Indian Ocean and the Pacific Ocean are prone to seismic activity, the frequency and intensity of tsunamis differ between the two regions. Various factors contribute to the relative rarity of tsunamis in the Indian Ocean:

1. Tectonic Activity:
The Pacific Ocean is surrounded by the "Ring of Fire," a region known for its intense tectonic activity. Subduction zones, where one tectonic plate slides beneath another, are prevalent in this area, leading to frequent earthquakes and volcanic eruptions. The Indian Ocean, on the other hand, has fewer subduction zones and is relatively less tectonically active.

2. Subduction Zones:
The Pacific Ocean has several active subduction zones, such as the Pacific Plate subducting beneath the Philippine Sea Plate. These collisions between tectonic plates often generate powerful earthquakes that can trigger tsunamis. In comparison, the Indian Ocean has fewer subduction zones, resulting in fewer opportunities for large-scale earthquakes and subsequent tsunamis.

3. Plate Boundaries:
The Pacific Ocean is surrounded by multiple plate boundaries, where the interactions between tectonic plates are more frequent and intense. These boundaries create zones of high seismic activity, making the Pacific Ocean more prone to earthquakes and consequently tsunamis. The Indian Ocean, on the other hand, has fewer active plate boundaries.

4. Tsunami Warning Systems:
The Pacific Ocean has a well-established and extensive tsunami warning system, known as the Pacific Tsunami Warning Center (PTWC). This system effectively monitors seismic activity and issues timely warnings to countries in the Pacific region. In contrast, the Indian Ocean lacked a comprehensive warning system until the devastating 2004 Indian Ocean tsunami. Since then, efforts have been made to establish regional warning systems, but they are still relatively less advanced compared to the Pacific.

Conclusion:
While both the Indian Ocean and the Pacific Ocean are susceptible to seismic activity, the Pacific Ocean experiences a higher frequency of earthquakes and tsunamis due to its intense tectonic activity and multiple subduction zones. The Indian Ocean has fewer subduction zones and plate boundaries, resulting in a lower occurrence of tsunamis. Additionally, the Pacific Ocean benefits from a well-established tsunami warning system, which helps mitigate the impact of tsunamis.