Journal of Tropical Oceanography ›› 2025, Vol. 44 ›› Issue (5): 12-21.doi: 10.11978/YG2024002CSTR: 32234.14.YG2024002

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Construction and research prospect of an integrated geological hazards monitoring platform in southern coastal cities of Sri Lanka*

ZHAO Minghui1,2(), SENANAYAKA Dasun1,2, CHENG Jinhui1(), ZHOU Yong1, CAO Lingmin1, ZHAO Lei4, LUO Yao3, ZHANG Zhenqiu3, PAN Gang3, THALDENA Nilmini5, ZHANG Jiazheng1,2, ZHANG Yayun1, XU Min1,2   

  1. 1. State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
    2. University of Chinese Academy of Sciences, Beijing 100049, China
    3. China-Sri Lanka Joint Center for Education & Research, Chinese Academy of Sciences, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 511458, China
    4. State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
    5. Geological Survey & Mines Bureau, Colombo 10100, Sri Lanka
  • Received:2024-11-14 Revised:2024-12-20 Online:2025-09-10 Published:2025-10-14
  • Contact: CHENG Jinhui
  • Supported by:
    National Natural Science Foundation of China(42476059); International Partnership Program of Chinese Academy of Sciences(059GJHZ2023104MI)

Abstract:

Sri Lanka, an island nation, holds strategic importance as a key node in the Indian Ocean shipping routes. This paper delves into the unique geological structure of Sri Lanka, characterized by steep terrain and frequent geological hazards, against a backdrop of limited preventive capabilities. Commencing with an analysis of these geological structure, we highlight the pressing livelihood and welfare challenges caused by recurrent geological hazards. Subsequently, we underscore the urgency and feasibility of establishing a comprehensive geological monitoring platform in coastal cities to address these challenges. We then elaborate on a three-phase deployment strategy for this early geological hazard monitoring platform, demonstrating its practical application. Furthermore, we identify two critical scientific issues requiring immediate attention: (1) the tectonic evolution mechanism of Sri Lanka, and (2) the stability of shallow geological structures in coastal cities. To this end, we emphasize the necessity of utilizing the latest seismic data to focus on studies of geological and velocity structures in Sri Lanka's coastal areas. Establishing standards for geological stability assessment and analyzing the temporal and spatial variation characteristics of geological hazards will provide scientific evidence for effective hazard prevention. More importantly, a more comprehensive model of geological structure evolution will be built through multidisciplinary approaches, integrating petrology, geochemistry, geophysics, and geological dating. This research aligns with the Belt and Road Initiative by prioritizing geological hazard prevention and advancing fundamental research on geological structures, carrying profound scientific and strategic implications.

Key words: geological hazards, geological hazards monitoring platform, tectonic evolution, shallow structure stability, Sri Lanka

CLC Number: 

  • P738.4