| Title | Probabilistic seismic risk assessment of India |
| |
| Author | Rao, A; Dutta, D; Kalita, P; Ackerley, N; Silva, V; Raghunandan, M; Ghosh, J; Ghosh, S; Brzev, S; Dasgupta, K |
| Source | Earthquake Spectra 2020 p. 1-27, https://doi.org/10.1177/8755293020957374 |
| Image |  |
| Year | 2020 |
| Alt Series | Natural Resources Canada, Contribution Series 20200470 |
| Publisher | SAGE Publications Inc. |
| Document | serial |
| Lang. | English |
| Media | paper; on-line; digital |
| File format | pdf; html |
| Area | India |
| Lat/Long WENS | 63.5833 91.8333 31.0500 4.6500 |
| Subjects | Science and Technology; seismicity |
| Illustrations | location maps; diagrams; tables; graphs |
| Released | 2020 09 25 |
| Abstract | This study presents a comprehensive open probabilistic seismic risk model for India. The proposed model comprises a nationwide residential and non-residential building exposure model, a selection of
analytical seismic vulnerability functions tailored for Indian building classes, and the open implementation of an existing probabilistic seismic hazard model for India. The vulnerability of the building exposure is combined with the seismic hazard
using the stochastic (Monte Carlo) event-based calculator of the OpenQuake engine to estimate probabilistic seismic risk metrics such as average annual economic losses and the exceedance probability curves at the national, state, district, and
subdistrict levels. The risk model and the underlying datasets, along with the risk metrics calculated at different scales, are intended to be used as tools to quantitatively assess the earthquake risk across India and also compare with other
countries to develop risk-informed building design guidelines, for more careful land-use planning, to optimize earthquake insurance pricing, and to enhance general earthquake risk awareness and preparedness. |
| Summary | (Plain Language Summary, not published)
In this study, researchers have created a comprehensive model to assess earthquake risks in India. They gathered data about buildings, both residential
and non-residential, all over the country. They also developed a set of vulnerability functions to understand how different types of buildings in India would react to earthquakes. Furthermore, they incorporated a seismic hazard model, which predicts
the likelihood of earthquakes in various regions of India.
By combining these data and models, the researchers were able to estimate the potential earthquake risks. They calculated things like the average annual economic losses that could occur
due to earthquakes and the likelihood of specific levels of losses.
The purpose of this study and its risk model is to help India prepare for earthquakes. It provides valuable information for decision-makers, city planners, and insurance
companies. For example, it can help design buildings that are better equipped to withstand earthquakes. It can also assist in deciding where it's safe to build, how to price earthquake insurance, and how to create public awareness and preparedness
programs. Essentially, this research is about making India safer and better prepared for earthquakes. |
| GEOSCAN ID | 327307 |
|
|