இலங்கையின் கிழக்குக் கரையோரமாகத் தொடரும் நிலநடுக்கங்கள் ஓர் மீளாய்வு

Abstract

Earthquakes are common events in the world nowadays. They are expanding toward the new regions and increasing unexpectedly. Occasionally, undersea earthquakes register small levels on the Richter scale along the eastern coast of Sri Lanka. The Geologists believe a possible splitting of the Indo-Australian plate is just about 300 km from the southwest coast of Sri Lanka. In recent years, 2020, 2021, 2022, and 2023 the event of earth tremors registered in numbers 16, 18, 05, and 16 respectively. Therefore, the vulnerability of Sri Lanka to earth tremor is higher now than before. Most of the events have been observed along the eastern part of the country such as Hambantota, Panama, Kalmunai, Batticaloa, and Trincomalee under the sea. The study focused on finding out the reasons for contemporary situations regarding the earth's tremors registering in unbelievable locations along the coast of the eastern part. The study consists of qualitative approaches and many of the published papers related to seismic activity in Sri Lanka were reviewed. Through the review, there is a lot of evidence that found not only the reason for the splitting of the Indo-Australian plate but also the creation of intraplate and development of fault systems both inland of the country as well as in-depth of the Indian Ocean near Sri Lanka. This evidence indicates a possibility both earthshaking and tsunamis are higher now than before. Sri Lanka has a responsibility to develop strategies to protect the society against seismic activity in the future.