Researchers from China Earthquake Administration Report Findings in Geology (Generation of a Stochastic Seismic Event Set Based On a New Seismicity Model In China’s Earthquake Catastrophe Model)

2021 AUG 18 (NewsRx) -- By a News Reporter-Staff News Editor at Daily China News -- Research findings on Geology are discussed in a new report. According to news reporting out of Beijing, People’s Republic of China, by NewsRx editors, research stated, “Earthquakes are among the most devastating natural disasters in China, causing serious casualties and property losses. To effectively reduce catastrophic risk, it is important to establish an earthquake catastrophe insurance system based on the earthquake catas-trophe model, of which seismic hazard analysis is a main module.”

Financial supporters for this research include National Key Research and Development of China, Special Fund of the Institute of Geophysics, China Earthquake Administration.

Our news journalists obtained a quote from the research from China Earthquake Administration, “Probabilistic seismic-hazard analysis uses the potential source model, seismicity model, and ground-motion attenuation model, as well as the probability method to obtain the seismic hazard value of a given point. However, because the influence of a single seismic event is required when the earthquake catastrophe model is used for risk analysis, a series of single events needs to be generated according to the potential source model so as to calculate the influence of each event on the given point. In this study, based on the seismicity model (potential sources and their seismicity parameters) used in compiling the fifth generation of Seismic Ground Motion Parameter Zoning Map of China, we use the Monte Carlo method to simulate seismic events conforming to temporal, spatial, and intensity distribution of China’s seismic activities. In the simulation process, we fol-low the Poisson distribution in occurrence time and the Gutenberg-Richter law in mag-nitude distribution, and we use potential sources and earthquake occurrence rates to describe spatial distribution. The simulated seismic events include the following param-eters: date (year, month, and day), location (longitude and latitude), depth, magnitude, and attitude of seismogenic faults.”

According to the news editors, the research concluded: “The simulated seismic event set can support earth-quake risk analysis in the earthquake catastrophe model and has been applied in the earthquake catastrophe model of China.”

This research has been peer-reviewed.

For more information on this research see: Generation of a Stochastic Seismic Event Set Based On a New Seismicity Model In China’s Earthquake Catastrophe Model. Seismological Research Letters, 2021;92(4):2308-2320. Seismological Research Letters can be contacted at: Seismological Soc Amer, 400 Evelyn Ave, Suite 201, Albany, CA 94706-1375, USA.

Our news journalists report that additional information may be obtained by contacting Weijin Xu, China Earthquake Administration, Institute of Geophysics, Beijing, People’s Republic of China. Additional authors for this research include Mengtan Gao and Huiqiang Zuo.

The direct object identifier (DOI) for that additional information is: https://doi.org/10.1785/0220200241.. This DOI is a link to an online electronic document that is either free or for purchase, and can be your direct source for a journal article and its citation.

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