Results 81 to 90 of about 2,306,028 (206)

Modelling the Importance of Ground and Strong‐Motion Variables on the Damage Status in the 2023 Kahramanmaraş Earthquakes Using Supervised Machine Learning

Geoscience Data Journal, Volume 12, Issue 4, October 2025.
KNN achieved the highest performance (0.989) using the full dataset and 0.988 with ground‐based parameters. EBd and f0 were key contributors to damage, while PGA dominated strong‐motion models. Specificity consistently outperformed sensitivity in earthquake‐parameter models.
Mustafa Senkaya, Serhat E. Akhanlı, Ali Silahtar, Hasan Karaaslan   +3 more
wiley   +1 more source

Procedure to estimate maximum ground acceleration from macroseismic intensity rating: application to the Lima, Perú data from the October-3-1974-8.1-Mw earthquake [PDF]

Advances in Geosciences, 2008
Post-disaster reconstruction management of urban areas requires timely information on the ground response microzonation to strong levels of ground shaking to minimize the rebuilt-environment vulnerability to future earthquakes. In this paper, a procedure
L. Ocola
doaj  

An analytic method for separating local from regional effects on macroseismic intensity

Annals of Geophysics, 1995
nterpretation of macroseismic data is hazardous, due to its qualitative nature. This, linked with errors in eval- uation,) and the variations of local intensity, makes it difficult to draw valid conclusions.
C. Gasparini, V. De Rubeis, P. Tosi
doaj   +1 more source

Rupture of the 1949 Khait Earthquake on a Cryptic Fault: Implications for Earthquake Hazard

Tectonics, Volume 44, Issue 10, October 2025.
Abstract The 1949 Mw 7.6 Khait earthquake, Tajikistan, was one of the most destructive of the Pamir—Tien Shan region, killing over 7,000 people by building collapse and landsliding. It occurred at the transition between the Pamir and Tien Shan mountain ranges, which converge along the narrow Vashkh river valley.
B. W. W. Johnson, G. Kulikova, E. A. Bergman, F. Krueger, I. K. Pierce, J. Hollingsworth, R. T. Walker   +6 more
wiley   +1 more source

The intensity attenuation of Colfiorito and other strong earthquakes: the viewpoint of forecasters and data gatherers

Annals of Geophysics, 2008
This article has been originated by thoughts on previous analyses related to the proba- bilistic treatment of the macroseismic attenuation, from which it turns out that in Italian territory the intensity decay I varies greatly from one region to another,
G. Zonno, C. Brambilla, A. Tertulliani, R. Rotondi   +3 more
doaj   +1 more source

Observational Seismic Fragility Models for Unreinforced Masonry Buildings Based on Building‐by‐Building Damage Data From the 2012 Emilia Earthquakes

Earthquake Engineering &Structural Dynamics, Volume 54, Issue 11, Page 2927-2946, September 2025.
ABSTRACT Over recent decades, Italy has been affected by multiple earthquakes, revealing the significant vulnerability of existing structures. These seismic events have resulted in notable human and economic losses, emphasising the importance of evaluating the impact of one or more seismic events on various building types.
Chiara Monteferrante, Gianluca Salamida, Claudio Mazzotti, Nicola Buratti   +3 more
wiley   +1 more source

The French macroseismic database SISFRANCE: objectives, resultsand perspectives

Annals of Geophysics, 2004
To comply with nuclear safety requirements, an in-depth research program for the revision of existing catalogues was initiated back in 1974. The priority of the partners involved in the SISFRANCE project was to establish the most exhaustive documentary ...
A. Levret, G. Quenet, D. Baumont, O. Scotti   +3 more
doaj   +1 more source

Ground Motion Estimates Updated by Building Damage

Earthquake Engineering &Structural Dynamics, Volume 54, Issue 11, Page 2981-2997, September 2025.
ABSTRACT Classical ShakeMap relies on a conditional Gaussian random field approach to earthquake shaking estimation, where the mean and covariance matrix are derived from a ground motion model, a correlation model for intra‐event residuals, and the recordings from seismic monitoring stations.
Iunio Iervolino, Antonio Vitale, Annalisa Rosti, Massimiliano Giorgio   +3 more
wiley   +1 more source

Testing and Developing the Macroseismic Intensity Attenuation Relationships for the Vrancea (Romania) Crustal Earthquakes

IOP Conference Series: Earth and Environment, 2019
A correct seismic hazard assessment and intensity-based shake maps of a seismic zone depend on the determination of parameters that emphasize the distribution and the macroseismic intensity attenuation for that seismogenic zone. Due to the reduced number
Constantin Angela Petruta, Moldovan Iren-Adelina, Partheniu Raluca, Manea Elena Florinela, I. Constantin   +4 more
semanticscholar   +1 more source

Did They Feel It? Legacy Macroseismic Data Illuminates an Engimatic 20th Century Earthquake

Earth and Space Science, Volume 12, Issue 9, September 2025.
Abstract The challenges and the importance of preserving legacy instrumental records of earthquakes are now well‐recognized (e.g., Richards & Hellweg, 2020, https://doi.org/10.1785/0220200053). Seismologists may not be aware of parallel challenges and opportunities with legacy macroseismic data for earthquakes in the United States. For much of the 20th
Susan E. Hough, Lori Dengler, Robert McPherson, Lijam Hagos, Margaret Hellweg   +4 more
wiley   +1 more source