where and how frequently are tsunamis generated
Answers
Explanation:
Most tsunamis occur in the Pacific and Indian Oceans. The boundary of the Pacific Ocean, known as the Ring of Fire, experiences frequent earthquakes. There are two major subduction zones in the Indian Ocean that can also generate tsunamis. The frequency of tsunamis is variable across the globe and over time.
On the average, two tsunamis occur per year throughout the world which inflict damage near the source. Approximately every 15 years a destructive, ocean-wide tsunami occurs.
Tsunamis are generated by earthquakes of a magnitude of more than 8.5 in the oceans. One such tsunami in the Indian Ocean in December 2004, led to massive destruction along the coastline of Tamil Nadu, Kerala, Andhra Pradesh, Puducherry and Andaman and Nicobar islands of India. It resulted in 10,749 deaths, 5,640 persons went missing, 2.79 million people got affected, 11,827 hectares of crops were damaged and about 300,000 fisherfolk lost their livelihood.