Earthquake forecasting is the ultimate challenge for seismologists, because it condenses the scientific knowledge about the earthquake occurrence process, and it is an essential component of any sound risk mitigation planning. It is commonly assumed that, in the short term, trustworthy earthquake forecasts are possible only for typical aftershock sequences, where the largest shock is followed by many smaller earthquakes that decay with time according to the Omori power law. We show that the current Italian operational earthquake forecasting system issued statistically reliable and skillful space-time-magnitude forecasts of the largest earthquakes during the complex 2016-2017 Amatrice-Norcia sequence, which is characterized by several bursts of seismicity and a significant deviation from the Omori law. This capability to deliver statistically reliable forecasts is an essential component of any program to assist public decision-makers and citizens in the challenging risk management of complex seismic sequences.
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http://dx.doi.org/10.1126/sciadv.1701239 | DOI Listing |
Sci Rep
January 2025
Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, 02139, USA.
We analyze the relationship between geothermal energy production and seismic hazards in the Salton Sea Geothermal Field (SSGF) between 1972 and 2022. A clear increase in seismic activity accompanies geothermal energy production and is greatest to the east of the Brawley fault, where the amount of injection exceeds the amount of production. We estimate that, whereas there was a 2% chance of a M6.
View Article and Find Full Text PDFDisaster Med Public Health Prep
January 2025
Yildirim Beyazit University Faculty of Medicine, Ankara, Ankara, Turkey.
Throughout human history, numerous natural disasters, particularly earthquakes, have caused significant destruction to civilizations. On February 6, 2023, 2 major earthquakes struck Turkey. The first occurred at 04:17 local time with a magnitude of 7.
View Article and Find Full Text PDFPhys Rev Lett
December 2024
Department of Mathematics and Physics, University of Campania "Luigi Vanvitelli," Caserta, Italy.
The identification of patterns in space, time, and magnitude, which could potentially encode the subsequent earthquake magnitude, represents a significant challenge in earthquake forecasting. A pivotal aspect of this endeavor involves the search for correlations between earthquake magnitudes, a task greatly hindered by the incompleteness of instrumental catalogs. A novel strategy to address this challenge is provided by the groundbreaking observation by Van der Elst (Journal of Geophysical Research: Solid Earth, 2021) that positive magnitude differences, under specific conditions, remain unaffected by catalog incompleteness.
View Article and Find Full Text PDFDisaster Med Public Health Prep
January 2025
Department of Food Engineering, Faculty of Engineering, Yeditepe University, Istanbul, Turkey.
Mortality rate of the crush victims in the Marmara earthquake of August 1999 was compared with the conclusions arrived after making thermodynamic assessment of the data acquired in the previous earthquakes. Entropic age concept was found very helpful while assessing the data. Mortality rate in the age group of 0-9 years old crush victims was 0 because the basal metabolic rate (BMR) of these children was low.
View Article and Find Full Text PDFSci Rep
December 2024
School of Management Science and Engineering, Shanxi University of Finance and Economics, Taiyuan, 030006, China.
To enhance the level of emergency supplies deployment during earthquake disaster, this study focuses on emergency logistics in China. An integrated two-stage optimization framework is adopted to incorporate demand and time satisfaction indicators into the supply allocation and route optimization models, respectively. Firstly, historical data and seismic monitoring information are used to estimate the number of people affected and to forecast the need for emergency supplies; Secondly, the concept of psychological risk perception and the degree of urgency of requirements are introduced.
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