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600 Results Found

  • Article
  • Open Access
7 Citations
3,322 Views
24 Pages

5 March 2023

Urban settlements located in high-seismicity areas should benefit from comprehensive vulnerability analyses, which are essential for the proper implementation of vulnerability modelling actions. Alas, many developing countries face a shortage of know...

  • Article
  • Open Access
14 Citations
3,988 Views
23 Pages

2D and 3D Seismic Survey for Sandstone-Type Uranium Deposit and Its Prediction Patterns, Erlian Basin, China

  • Qubo Wu,
  • Yanchun Wang,
  • Ziying Li,
  • Baoping Qiao,
  • Xiang Yu,
  • Weichuan Huang,
  • Chengyin Cao,
  • Ziwei Li,
  • Ziqiang Pan and
  • Yucheng Huang

29 April 2022

The Erlian basin is one of the most important basins in northern China to host sandstone-type uranium deposits (SUDs), in which Bayanwula, Saihangaobi, and Hadatu are under development, to name a few. Issues such as the metallogenic mechanism and min...

  • Article
  • Open Access
11 Citations
2,931 Views
14 Pages

9 September 2021

On 3 March 2021, a strong, shallow earthquake of moment magnitude, Mw6.3, occurred in northern Thessaly (Central Greece). To investigate possible complex correlations in the evolution of seismicity in the broader area of Central Greece before the Mw6...

  • Feature Paper
  • Article
  • Open Access
9 Citations
2,639 Views
32 Pages

20 January 2022

The angle of seismic excitation is a significant factor in the seismic response of RC buildings. The procedure required for the calculation of the angle for which the potential seismic damage is maximized (critical angle) contains multiple nonlinear...

  • Article
  • Open Access
2 Citations
2,510 Views
18 Pages

31 October 2024

Based on GNSS observations, the co-seismic and post-seismic slip of the 2024 Noto Peninsula earthquake and the spatio-temporal pattern of afterslip are investigated in this paper. The co-seismic slip is mainly distributed in the depth range of 2 to 1...

  • Article
  • Open Access
3 Citations
2,312 Views
25 Pages

Seismic Vulnerability of Segmental Bridges with Drop-In Span by Pushover Analysis

  • Piero Colajanni,
  • Michele Fabio Granata and
  • Lidia La Mendola

25 December 2023

Insight into the application of pushover analysis to prestressed concrete segmental bridges built in the 1950s–1970s by cantilevering with medium-large span length is provided. Seismic assessment must be carried out considering the whole struct...

  • Article
  • Open Access
20 Citations
6,247 Views
20 Pages

An Optimal Seismic Force Pattern for Uniform Drift Distribution

  • Rosario Montuori,
  • Elide Nastri and
  • Bonaventura Tagliafierro

6 November 2019

The force distribution proposed by codes, which in many cases is framed in the equivalent static force procedure, likely leads to design structures with non-uniform drift distribution in terms of inter-storey drift and ductility demands. This can lea...

  • Article
  • Open Access
14 Citations
3,476 Views
16 Pages

On 27 September 2021, a shallow earthquake with focal depth of 10 km and moment magnitude Mw6.0 occurred onshore in central Crete (Greece). The evolution of possible preseismic patterns in the area of central Crete before the Mw6.0 event was investig...

  • Article
  • Open Access
17 Citations
3,747 Views
30 Pages

System-Analytical Method of Earthquake-Prone Areas Recognition

  • Boris A. Dzeboev,
  • Alexei D. Gvishiani,
  • Sergey M. Agayan,
  • Ivan O. Belov,
  • Jon K. Karapetyan,
  • Boris V. Dzeranov and
  • Yuliya V. Barykina

28 August 2021

Typically, strong earthquakes do not occur over the entire territory of the seismically active region. Recognition of areas where they may occur is a critical step in seismic hazard assessment studies. For half a century, the Earthquake-Prone Areas (...

  • Article
  • Open Access
13 Citations
2,825 Views
29 Pages

19 April 2023

In the current manuscript, a novel software application for rapid damage assessment of RC buildings subjected to earthquake excitation is presented based on artificial neural networks. The software integrates the use of a novel deep learning methodol...

  • Article
  • Open Access
19 Citations
3,996 Views
15 Pages

Seismic Performance of Reinforced Concrete Short Columns Subjected to Freeze–Thaw Cycles

  • Yixin Zhang,
  • Shansuo Zheng,
  • Xianliang Rong,
  • Liguo Dong and
  • Hao Zheng

3 July 2019

Previous research shows that freeze–thaw cycles represent one of the most dangerous threats to reinforced concrete (RC) structures. However, there is almost no experimental data on the effects of freeze–thaw cycles on the seismic behavior...

  • Article
  • Open Access
1 Citations
1,570 Views
20 Pages

11 November 2024

The Eastern Tianshan region, influenced by the far-field effect of northward compression and expansion of the Qinghai-Xizang block, features highly developed Late Quaternary active faults that exhibit significant neotectonic activity. Historically, t...

  • Article
  • Open Access
1 Citations
3,132 Views
21 Pages

Load Distribution Optimization of Steel Storage Rack Based on Genetic Algorithm

  • Tianyang Deng,
  • Yu Niu,
  • Lingfeng Yin,
  • Zhiqiang Lin and
  • Zhanjie Li

24 October 2022

The distribution of load has high uncertainty, which is the main cause of a rack structure’s instabilities. The objective of this study was to identify the most unfavorable and favorable load distributions on steel storage racks with and withou...

  • Article
  • Open Access
2 Citations
2,890 Views
32 Pages

Seismicity Patterns in Some Mediterranean Zones After the 1939 Anatolian Earthquake: Insights on Seismic Risk and the Tectonic Setting

  • Enzo Mantovani,
  • Marcello Viti,
  • Caterina Tamburelli,
  • Daniele Babbucci,
  • Massimo Baglione and
  • Vittorio D’Intinosante

An attempt is made at recognizing the main effects of the strong 1939 earthquake in the Easternmost Anatolian Fault on the seismic activity in key Mediterranean tectonic zones. The major earthquake trends since 1800 indicate that, in the decades foll...

  • Article
  • Open Access
10 Citations
3,175 Views
9 Pages

28 January 2019

Seismicity pattern changes that are associated with strong earthquakes are an interesting topic with potential applications for natural hazard mitigation. As a retrospective case study of the Ms7.3 Yutian earthquake, which was an inland normal faulti...

  • Article
  • Open Access
629 Views
22 Pages

Physical and Statistical Pattern of the Thiva (Greece) 2020–2022 Seismic Swarm

  • Filippos Vallianatos,
  • Eirini Sardeli,
  • Kyriaki Pavlou and
  • Andreas Karakonstantis

19 September 2025

On 2 December 2020, an earthquake with a magnitude of Mw 4.5 occurred near the city of Thiva (Greece). The aftershock sequence, triggered by ruptures on or near the Kallithea fault, continued until January 2021. Seven months later, new seismic activi...

  • Article
  • Open Access
10 Citations
3,287 Views
32 Pages

Applying Geostatistics to Understand Seismic Activity Patterns in the Northern Red Sea Boundary Zone

  • Sayed S. R. Moustafa,
  • Mohamed H. Yassien,
  • Mohamed Metwaly,
  • Ahmad M. Faried and
  • Basem Elsaka

10 February 2024

A comprehensive geostatistical analysis was conducted on a dataset comprising 24,321 seismic events in the Red Sea region, spanning from 1997 to 2020. This analysis involved the creation of a new seismic activity database, incorporating data from bot...

  • Article
  • Open Access
823 Views
23 Pages

Seismic Damage Pattern Analysis of Long-Span CFST Arch Bridges Based on Damper Configuration Strategies

  • Bin Zhao,
  • Longhua Zeng,
  • Qingyun Chen,
  • Chao Gan,
  • Lueqin Xu and
  • Guosi Cheng

2 August 2025

Variations in damper configuration strategies have a direct impact on the seismic damage patterns of long-span deck-type concrete-filled steel tube (CFST) arch bridges. This study developed an analysis and evaluation framework to identify the damage...

  • Article
  • Open Access
972 Views
17 Pages

Detection of Significant Seismic Quiescence Patterns in the Mexican Subduction Zone Using Extended Schreider Algorithms

  • Carlos Carrizales-Velazquez,
  • Jennifer Perez-Oregon,
  • Israel Reyes-Ramírez,
  • Lev Guzmán-Vargas and
  • Fernando Angulo-Brown

16 September 2025

This study investigates the implementation of Schreider’s quiescence algorithm and two variants that utilize spatiotemporal data to identify patterns of seismic quiescence. These patterns are of particular interest as they may serve as precurso...

  • Article
  • Open Access
24 Citations
3,805 Views
14 Pages

On 8 August 2017 an earthquake (MS7.0) occurred within Jiuzhaigou County, Northern Aba Prefecture, Sichuan Province, China, triggering 4834 landslides with an individual area greater than 7.8 m2 over a more than 400 km2 region. Instead of correlating...

  • Article
  • Open Access
8 Citations
3,603 Views
25 Pages

28 September 2023

An effort is exerted to investigate the recurrence pattern of large earthquakes (Mw ≥ 6.0) in the Kefalonia Transform Fault Zone (KTFZ), Greece, by considering the incorporation of the 74-year (1948–2022) evolving stress field. Four earthqua...

  • Article
  • Open Access
2 Citations
3,544 Views
29 Pages

1 September 2022

Evaluating the structural performance of low-rise RC buildings with infill walls is an essential issue in Thailand, as most infill walls were not designed for lateral load resistance. The purpose of this study was to predict the structural behavior a...

  • Article
  • Open Access
584 Views
23 Pages

14 October 2025

In horizontal well technology, hydraulic fracturing has been established as an essential technique for enhancing hydrocarbon production. However, the complex architecture of fracture networks challenges conventional monitoring methods. Micro-seismic...

  • Article
  • Open Access
6 Citations
4,956 Views
19 Pages

Magmatism on continental lithospheres induced by mantle plumes is more complex compared to oceanic intraplate volcanism owing to the heterogeneous nature of continental crustal and lithospheric structures. Substantial evidence points to the deep-orie...

  • Article
  • Open Access
1,706 Views
20 Pages

A Method for Defining Sedimentary Characteristics and Distributions and Its Application in Qinnan Depression, Bohai Bay Basin

  • Zehua Zhang,
  • Chunqiang Xu,
  • Chenjie Wang,
  • Hong Li,
  • Wensen Zhu,
  • Hongliang Wang,
  • Kaixuan Liang and
  • Yong Su

24 August 2023

A new method incorporating geophysical analysis and geological analysis is proposed to define the sedimentary characteristics and distributions in basins with few drilling wells to promote the exploration of reservoirs. This method is applied to a st...

  • Feature Paper
  • Article
  • Open Access
15 Citations
3,658 Views
19 Pages

1 October 2018

Observational indications support the hypothesis that many large earthquakes are preceded by accelerating-decelerating seismic release rates which are described by a power law time to failure relation. In the present work, a unified theoretical frame...

  • Article
  • Open Access
7 Citations
4,398 Views
17 Pages

18 January 2024

Highway bridges stand as paramount elements within transportation infrastructure systems. The ability to ensure swift recovery after extreme events, such as earthquakes, is a fundamental trait of resilient communities. Consequently, expediting the re...

  • Article
  • Open Access
2 Citations
4,035 Views
13 Pages

6 October 2022

As an earthquake is capable of causing significant losses, a strain buildup and release model following an earthquake is of importance for mitigation purposes. In this study, we aim to model strain buildup and release on a strike-slip fault which con...

  • Feature Paper
  • Article
  • Open Access
27 Citations
6,021 Views
23 Pages

Copernicus Sentinel-1 MT-InSAR, GNSS and Seismic Monitoring of Deformation Patterns and Trends at the Methana Volcano, Greece

  • Theodoros Gatsios,
  • Francesca Cigna,
  • Deodato Tapete,
  • Vassilis Sakkas,
  • Kyriaki Pavlou and
  • Issaak Parcharidis

16 September 2020

The Methana volcano in Greece belongs to the western part of the Hellenic Volcanic Arc, where the African and Eurasian tectonic plates converge at a rate of approximately 3 cm/year. While volcanic hazard in Methana is considered low, the neotectonic...

  • Article
  • Open Access
8 Citations
2,604 Views
13 Pages

31 October 2021

The ‘Every Earthquake a Precursor According to Scale’ (EEPAS) medium-term earthquake forecasting model is based on the precursory scale increase (Ψ) phenomenon and associated scaling relations, in which the precursor magnitude MP is predictive of the...

  • Article
  • Open Access
5 Citations
2,826 Views
17 Pages

4 December 2022

In Late Antiquity and the Early Middle Ages, both coastal and sub-mountainous parts of Colchis underwent rapid urbanization. In the 12th century, the processes of decline began: Large settlements were replaced by small farmsteads with light wooden bu...

  • Article
  • Open Access
8 Citations
2,972 Views
16 Pages

Strong Earthquake-Prone Areas in the Eastern Sector of the Arctic Zone of the Russian Federation

  • Alexei D. Gvishiani,
  • Boris A. Dzeboev,
  • Boris V. Dzeranov,
  • Ernest O. Kedrov,
  • Anna A. Skorkina and
  • Izabella M. Nikitina

23 November 2022

This paper continues the series of publications by the authors on the recognition of areas prone to the strongest, strong, and significant earthquakes using the FCAZ system-analytical method. The areas prone to earthquakes with M ≥ 5.5 in the east...

  • Article
  • Open Access
9 Citations
6,542 Views
14 Pages

23 April 2017

This paper presents a pushover analysis using ABAQUS (Dassault Company, Providence, Rhodes Island, USA) for spatial reinforced concrete (RC) frames. The main purpose is to study the effect of the infills on failure patterns of the RC frames. The Fini...

  • Article
  • Open Access
11 Citations
6,126 Views
12 Pages

29 January 2018

The presence of the largest part of World Heritage sites in a seismically-prone area, like Italy, demands always greater measures to protect the most important built heritage, as well as the minor architecture. This requires a constant improvement of...

  • Article
  • Open Access
6 Citations
2,547 Views
15 Pages

6 November 2020

‘Every Earthquake a Precursor According to Scale’ (EEPAS) is a catalogue-based model to forecast earthquakes within the coming months, years and decades, depending on magnitude. EEPAS has been shown to perform well in seismically active r...

  • Article
  • Open Access
608 Views
24 Pages

3 September 2025

The asymmetry of seismic rupture significantly dictates the intensity and spatial distribution of the radiated stress waves during mining-induced tremors, exerting a pivotal influence on the dynamic instability of roadways triggered by mining-induced...

  • Article
  • Open Access
5,933 Views
21 Pages

26 July 2024

The North Aegean Sea region in Greece is located at the convergence of the Eurasian, African, and Anatolian tectonic plates. The region experiences frequent seismicity ranging from moderate to large-magnitude earthquakes. Tectonic interactions and se...

  • Article
  • Open Access
2,119 Views
16 Pages

Stylization of a Seismic Image Profile Based on a Convolutional Neural Network

  • Huiting Hu,
  • Wenxin Lian,
  • Rui Su,
  • Chongyu Ren and
  • Juan Zhang

20 August 2022

Seismic data are widely used in oil, gas, and other kinds of mineral exploration and development. However, due to low artificial interpretation accuracy and small sample sizes, seismic data may not meet the needs of convolutional neural network train...

  • Article
  • Open Access
15 Citations
3,309 Views
35 Pages

16 July 2021

The Western Gulf of Corinth (WGoC) exhibits significant seismicity patterns, combining intense microseismic background activity with both seismic swarms and short-lived aftershock sequences. Herein, we present a catalogue of ~9000 events, derived by...

  • Article
  • Open Access
1 Citations
1,294 Views
14 Pages

5 September 2024

In this study, we aimed to assess the capacity of a physics-based earthquake simulator to improve our understanding of the seismogenic process. In this respect, we applied a previously tested earthquake simulator to two well-known and completely diff...

  • Article
  • Open Access
3 Citations
3,156 Views
22 Pages

11 September 2019

During the last 20 years (1997 to 2017), four seismic sequences with Mw ≥ 5.5 mainshocks nucleated along the Central and Northern Apennines chain (Italy), causing casualties and damage: the 1997 Colfiorito, the 2009 L’Aquila, the 2012 Emilia...

  • Article
  • Open Access
1 Citations
2,764 Views
16 Pages

10 June 2023

Understanding the seismo–ionospheric coupling mechanism requires a quiet geomagnetic condition, as this represents an ideal situation to detect abnormal variations in the geomagnetic field. In reality, continuous interactions between solar wind...

  • Article
  • Open Access
3 Citations
4,705 Views
14 Pages

1 November 2022

Seismic velocity is the geophysical property that has a key role in characterizing dynamic processes and the state of the stress around the faults, providing valuable information regarding the change in the tectonic regime. The stress in the crust is...

  • Article
  • Open Access
3 Citations
3,758 Views
21 Pages

7 April 2021

This study addresses an alternative use of viscous dampers (VDs) associated with buckling restrained braces (BRBs) as innovative seismic protection devices. For this purpose, 4-, 8- and 12-story steel bare frames were designed with 6.5 m equal span l...

  • Article
  • Open Access
2 Citations
2,181 Views
13 Pages

Intelligent Anti-Seismic Foundation: The Role of Fractal Geometry

  • Ahmad Saoud,
  • Diogo Queiros-Conde,
  • Ahmad Omar and
  • Thomas Michelitsch

Safe and resistant infrastructure is an essential component of public safety. However, existing structures are vulnerable to damage resulting from excessive ground movement due to seismic activity or underground explosions. The aim of this paper, whi...

  • Article
  • Open Access
215 Views
20 Pages

26 December 2025

This study presents a case study of the Ms5.5 Dezhou Earthquake to document the spatiotemporal characteristics of Outgoing Longwave Radiation (OLR) anomalies and their concurrent patterns with tidal force cycles. Based on NOAA satellite OLR data, syn...

  • Article
  • Open Access
26 Citations
3,208 Views
16 Pages

9 December 2022

At 17:00 (UTC+8) on 1 June 2022, an Ms 6.1 reverse earthquake struck Lushan County, Ya’an City, Sichuan Province. This earthquake event had a focal depth of 10 km and the epicenter was located at 30.37° N and 102.94° E. The purpose of t...

  • Article
  • Open Access
27 Citations
7,399 Views
21 Pages

16 February 2021

Seismic assessment is a paramount issue and a valuable instrument towards the conservation of vulnerable structures in seismic prone regions. The past seismic events have highlighted the vulnerability of masonry towers that is exhibited by severe str...

  • Communication
  • Open Access
2,120 Views
13 Pages

25 April 2023

Spatiotemporal distribution of early afterslip is essential for seismic hazard evaluation and determination of fault friction properties. In this study, we used early post-seismic COSMO-SkyMed (19 February 2014–08 April 2014) and long-term Sent...

  • Article
  • Open Access
6 Citations
2,642 Views
26 Pages

30 September 2022

The Pinghu Formation consists primarily of marine-continental transitional deposits. The widely distributed fluvial and tidal transgressive sand bodies comprise the main reservoirs of the Baochu slope zone in the Xihu Sag in the East China Sea Shelf...

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