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23 Results Found

  • Article
  • Open Access
501 Views
14 Pages

27 November 2025

Regional seismic phases are essential for imaging Earth’s internal structure. Although extensive regional seismic networks are publicly available worldwide, only a small fraction of recorded phase arrivals are picked for constraining earthquake...

  • Article
  • Open Access
10 Citations
3,523 Views
14 Pages

6 October 2022

First arrival travel time picking is an important step in many seismic data-processing applications. Most first arrival picking methods search for a sudden jump in seismic energy at trace onsets, which is clearly appropriate for minimum-phase data. T...

  • Article
  • Open Access
6 Citations
3,267 Views
18 Pages

16 December 2022

The extraction of travel-time curve of seismic phase is very important for the subsequent inference of the structural properties of underground media in seismology. In recent years, with the increase in the amount of data, manual processing is facing...

  • Article
  • Open Access
3 Citations
1,994 Views
14 Pages

15 November 2024

The detection and monitoring of mining-induced seismicity are essential for understanding the mechanisms behind earthquakes and mitigating seismic hazards. However, traditional underground seismic monitoring networks for mining-induced seismicity are...

  • Article
  • Open Access
3 Citations
1,514 Views
17 Pages

26 December 2024

This paper presents a new catalogue of the 2022/2023 Adriatic Offshore Seismic Sequence obtained by machine learning-based processing. The procedure performs the automatic picking and association of phases starting from the analysis of the continuous...

  • Article
  • Open Access
41 Citations
4,206 Views
15 Pages

4 August 2021

Signal denoising is one of the most important issues in signal processing, and various techniques have been proposed to address this issue. A combined method involving wavelet decomposition and multiscale principal component analysis (MSPCA) has been...

  • Article
  • Open Access
1 Citations
1,386 Views
10 Pages

Statistical Picking of Multivariate Waveforms

  • Nicoletta D’Angelo,
  • Giada Adelfio,
  • Marcello Chiodi and
  • Antonino D’Alessandro

8 December 2022

In this paper, we propose a new approach based on the fitting of a generalized linear regression model in order to detect points of change in the variance of a multivariate-covariance Gaussian variable, where the variance function is piecewise consta...

  • Article
  • Open Access
5 Citations
3,152 Views
17 Pages

Thousands of Induced Earthquakes per Month in West Texas Detected Using EQCCT

  • Yangkang Chen,
  • Alexandros Savvaidis,
  • Omar M. Saad,
  • Daniel Siervo,
  • Guo-Chin Dino Huang,
  • Yunfeng Chen,
  • Iason Grigoratos,
  • Sergey Fomel and
  • Caroline Breton

West Texas has been a seismically active region in the past decade due to the injection of industrial wastewater and hydrocarbon exploitation. The newly founded Texas seismological network has provided a catalog that characterizes the intense seismic...

  • Article
  • Open Access
10 Citations
4,298 Views
19 Pages

Automatic Horizon Picking Using Multiple Seismic Attributes and Markov Decision Process

  • Chengliang Wu,
  • Bo Feng,
  • Xiaonan Song,
  • Huazhong Wang,
  • Rongwei Xu and
  • Shen Sheng

17 January 2023

Picking the reflection horizon is an important step in velocity inversion and seismic interpretation. Manual picking is time-consuming and no longer suitable for current large-scale seismic data processing. Automatic algorithms using different seismi...

  • Article
  • Open Access
231 Views
18 Pages

1 January 2026

The real-time phase picking, detection, and location of seismic events is a crucial challenge for monitoring in densely populated volcanic areas. In such contexts, low-magnitude events may escape traditional detection methods due to high levels of an...

  • Article
  • Open Access
2 Citations
3,734 Views
14 Pages

Calculation of Theoretical Travel Time and Automatic Picking of Actual Travel Time in Seismic Data

  • Wenqi Gao,
  • Youxue Wang,
  • Yang Yang,
  • Sanxi Peng,
  • Songping Yu,
  • Lu Liu and
  • Lei Yan

19 January 2023

We used the ray tracing technique based on the IASP91 Earth model to calculate the travel times in order to identify the phases. This technique can calculate the travel times for the seismic phases in the conventional travel time tables. The waveform...

  • Article
  • Open Access
9 Citations
5,044 Views
12 Pages

19 September 2021

When recording seismic ground motion in multiple sites using independent recording stations one needs to recognize the presence of the same parts of seismic waves arriving at these stations. This problem is known in seismology as seismic phase pickin...

  • Article
  • Open Access
1 Citations
1,946 Views
17 Pages

21 March 2025

Phase arrival times and polarities provide essential kinematic constraints for and dynamic insights into seismic sources, respectively. This information serves as fundamental data in seismological study. For microseismic events with smaller magnitude...

  • Article
  • Open Access
3 Citations
1,690 Views
15 Pages

28 February 2024

A high-resolution catalog for the 2014 Ms 6.5 Ludian aftershocks was constructed based on the deep learning phase-picking model (CERP) and seismic-phase association technology (PALM). A specific training strategy, which combines the advantages of the...

  • Article
  • Open Access
1 Citations
3,049 Views
16 Pages

21 November 2022

System software for interactive human–computer data processing based on the IASP91 Earth model was designed. An interactive data processing system for visualizing earthquake data was designed and implemented via the Intel Fortran platform. The...

  • Article
  • Open Access
4 Citations
2,567 Views
19 Pages

26 October 2022

Seismic bulletin data collected by the Iranian Seismological Center are used to image crust and mantle seismic attenuation, group velocity, and phase velocities for Lg, Pg, Sn, and Pn phases. This is possible because the peak amplitude time is picked...

  • Article
  • Open Access
755 Views
21 Pages

The SISMIKO Monitoring Network and Insights into the 2024 Seismic Swarms on the Ionian Side of the Calabrian Arc

  • Antonio Costanzo,
  • Marina Pastori,
  • Adriano Cavaliere,
  • Ezio D’Alema,
  • Lucia Margheriti,
  • Simone Marzorati,
  • Milena Moretti,
  • Davide Piccinini,
  • Mario Anselmi and
  • Mario Locati
  • + 9 authors

14 November 2025

Following the Mw 5.0 earthquake of 1 August 2024, which struck the Ionian sector of north-central Calabria (southern Italy), the SISMIKO emergency group of INGV deployed a temporary seismic network to enhance coverage of the National Seismic Network....

  • Article
  • Open Access
3 Citations
4,802 Views
21 Pages

A Deep-Learning-Based Real-Time Microearthquake Monitoring System (RT-MEMS) for Taiwan

  • Wei-Fang Sun,
  • Sheng-Yan Pan,
  • Yao-Hung Liu,
  • Hao Kuo-Chen,
  • Chin-Shang Ku,
  • Che-Min Lin and
  • Ching-Chou Fu

26 May 2025

A timely, high-resolution earthquake catalog is crucial for estimating seismic evolution and assessing hazards. This study aims to introduce a deep-learning-based real-time microearthquake monitoring system (RT-MEMS) for Taiwan, designed to provide r...

  • Article
  • Open Access
1 Citations
3,119 Views
27 Pages

11 May 2024

Geothermal energy exploitation in urban areas necessitates robust real-time seismic monitoring for risk mitigation. While surface-based seismic networks are valuable, they are sensitive to anthropogenic noise. This study investigates the capabilities...

  • Article
  • Open Access
2 Citations
2,172 Views
15 Pages

A Strong Noise Reduction Network for Seismic Records

  • Tong Shen,
  • Xuan Jiang,
  • Wenzheng Rong,
  • Lei Xu,
  • Xianguo Tuo and
  • Guili Peng

7 November 2024

Noise reduction is a critical step in seismic data processing. A novel strong noise reduction network is proposed in this study. The network enhances the U-Net architecture with an improved inception module and coordinate attention (CA) mechanism, su...

  • Article
  • Open Access
20 Citations
4,187 Views
23 Pages

8 May 2020

Microseismic (MS) source location is a fundamental and critical task in mine MS monitoring. The traditional ray tracing-based location method can be easily affected by many factors, such as multi-ray path effects, waveform focusing and defocusing of...

  • Article
  • Open Access
598 Views
17 Pages

High-Precision Waveform Stacking Location Method for Microseismic Events Based on S-Transform

  • Hongpeng Zhao,
  • Jiulong Cheng,
  • Grzegorz Lizurek,
  • Chuanpeng Wang,
  • Yan Li,
  • Dengke He and
  • Zhongzhong Xu

14 November 2025

The waveform stacking location method achieves microseismic source localization by computing characteristic functions (CFs) and stacking multi-channel data, without phase picking. It has been widely applied in geotechnical engineering. However, the l...

  • Article
  • Open Access
6 Citations
3,495 Views
26 Pages

Processability and Material Behavior of NiTi Shape Memory Alloys Using Wire Laser-Directed Energy Deposition (WL-DED)

  • Hediyeh Dabbaghi,
  • Nasrin Taheri Andani,
  • Mohammad Pourshams,
  • Mahyar Sojoodi,
  • Behrang Poorganji and
  • Mohammad Elahinia

Utilizing additive manufacturing (AM) techniques with shape memory alloys (SMAs) like NiTi shows great promise for fabricating highly flexible and functionally superior 3D metallic structures. Compared to methods relying on powder feedstocks, wire-ba...