Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Geospatial Analysis of Seismotectonics for Microearthquake Hazard Zonation in Kohima District, Northeastern Himalayan Region of India
https://orcid.org/http://orcid.org/0009-0000-6976-3063
Along the converging tectonic boundary of the Indian plate and Eurasian plate microearthquake (< 4 magnitude) is very frequent and is the cause of other geostructural hazards and disasters such as land creeping, land fissuring, land subsidence, landslide and slope failure. To mitigate the likely losses during such geostructural hazards, a comprehensive microearthquake hazard zonation map of the concerned region has been necessary. Considering this objective, Kohima district, a northeastern part of the Himalayas, falling in zone 5 of India’s earthquake hazard zone, has been selected for the case illustration. Geospatial analysis of the seismotectonic of the region suggests that the annual frequency of earthquakes in the area stands at 27 events/year, out of which 76% (20 events) are low-magnitude earthquakes. To mitigate socioeconomic losses of these frequent low-level magnitude earthquakes, the proposed microearthquake hazard zone map of the Kohima district suggests four zones according to the hazard potentiality, viz. very high hazard zone (accounts > 12 seismic events/10 km2 grid with most stressed geophysical setup), high hazard zone (area accounts 8–12 seismic events/10 km2 grid and having very high stressed geophysical setup), moderate hazard zone (areas of 4–8 seismic events/10km2grid and having frizzle geophysical setup) and low hazard zone (area accounts 1–4 seismic events/10 km2 grid and having moderately stressed geophysical setup). Spatial variability of seismic hazard zones reveals that about 81% of the region is vulnerable to extreme to very high earthquake frequency. This study would play a significant role as a decision support system (DSS) to execute developmental planning for well-being at the government, community, and individual household levels.
Geospatial Analysis of Seismotectonics for Microearthquake Hazard Zonation in Kohima District, Northeastern Himalayan Region of India
https://orcid.org/http://orcid.org/0009-0000-6976-3063
Along the converging tectonic boundary of the Indian plate and Eurasian plate microearthquake (< 4 magnitude) is very frequent and is the cause of other geostructural hazards and disasters such as land creeping, land fissuring, land subsidence, landslide and slope failure. To mitigate the likely losses during such geostructural hazards, a comprehensive microearthquake hazard zonation map of the concerned region has been necessary. Considering this objective, Kohima district, a northeastern part of the Himalayas, falling in zone 5 of India’s earthquake hazard zone, has been selected for the case illustration. Geospatial analysis of the seismotectonic of the region suggests that the annual frequency of earthquakes in the area stands at 27 events/year, out of which 76% (20 events) are low-magnitude earthquakes. To mitigate socioeconomic losses of these frequent low-level magnitude earthquakes, the proposed microearthquake hazard zone map of the Kohima district suggests four zones according to the hazard potentiality, viz. very high hazard zone (accounts > 12 seismic events/10 km2 grid with most stressed geophysical setup), high hazard zone (area accounts 8–12 seismic events/10 km2 grid and having very high stressed geophysical setup), moderate hazard zone (areas of 4–8 seismic events/10km2grid and having frizzle geophysical setup) and low hazard zone (area accounts 1–4 seismic events/10 km2 grid and having moderately stressed geophysical setup). Spatial variability of seismic hazard zones reveals that about 81% of the region is vulnerable to extreme to very high earthquake frequency. This study would play a significant role as a decision support system (DSS) to execute developmental planning for well-being at the government, community, and individual household levels.
Geospatial Analysis of Seismotectonics for Microearthquake Hazard Zonation in Kohima District, Northeastern Himalayan Region of India
https://orcid.org/http://orcid.org/0009-0000-6976-3063
Along the converging tectonic boundary of the Indian plate and Eurasian plate microearthquake (< 4 magnitude) is very frequent and is the cause of other geostructural hazards and disasters such as land creeping, land fissuring, land subsidence, landslide and slope failure. To mitigate the likely losses during such geostructural hazards, a comprehensive microearthquake hazard zonation map of the concerned region has been necessary. Considering this objective, Kohima district, a northeastern part of the Himalayas, falling in zone 5 of India’s earthquake hazard zone, has been selected for the case illustration. Geospatial analysis of the seismotectonic of the region suggests that the annual frequency of earthquakes in the area stands at 27 events/year, out of which 76% (20 events) are low-magnitude earthquakes. To mitigate socioeconomic losses of these frequent low-level magnitude earthquakes, the proposed microearthquake hazard zone map of the Kohima district suggests four zones according to the hazard potentiality, viz. very high hazard zone (accounts > 12 seismic events/10 km2 grid with most stressed geophysical setup), high hazard zone (area accounts 8–12 seismic events/10 km2 grid and having very high stressed geophysical setup), moderate hazard zone (areas of 4–8 seismic events/10km2grid and having frizzle geophysical setup) and low hazard zone (area accounts 1–4 seismic events/10 km2 grid and having moderately stressed geophysical setup). Spatial variability of seismic hazard zones reveals that about 81% of the region is vulnerable to extreme to very high earthquake frequency. This study would play a significant role as a decision support system (DSS) to execute developmental planning for well-being at the government, community, and individual household levels.
Geospatial Analysis of Seismotectonics for Microearthquake Hazard Zonation in Kohima District, Northeastern Himalayan Region of India
Indian Geotech J
Belho, Khrieketouno (Autor:in) / Rawat, Mohan Singh (Autor:in) / Kumar Rawat, Pradeep (Autor:in)
Indian Geotechnical Journal ; 54 ; 2170-2181
01.12.2024
12 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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