Results 31 to 40 of about 7,336 (254)

Pattern Recognition for Earthquake Detection [PDF]

, 1987
The detector algorithms in use at date rely on negative decision logic: based on a model of the ambient noise process they detect all deviations, but many of them are false alarms. The principal alternative to this approach is pattern recognition, which tests on positive correlation with some known signal patterns.
openaire   +3 more sources

Unraveling the Evolution of an Unusually Active Earthquake Sequence Near Sheldon, Nevada

Seismica, 2023
One of most universal statistical properties of earthquakes is the tendency to cluster in space and time. Yet while clustering is pervasive, individual earthquake sequences can vary markedly in duration, spatial extent, and time evolution.
Daniel Trugman, William Savran, Christine Ruhl, Kenneth Smith   +3 more
doaj   +1 more source

Investigating short-term earthquake precursors detection through monitoring of total electron content variation in ionosphere

Frontiers in Astronomy and Space Sciences, 2023
The effectiveness and accuracy of earthquake precursors are measured by the ability of the precursors to predict the time, epicentral distance, and magnitude of the earthquake for short-term earthquake prediction.
Nur Fatin Irdina Zulhamidi, Mardina Abdullah, Mardina Abdullah, Nurul Shazana Abdul Hamid, Nurul Shazana Abdul Hamid, Khairul Adib Yusof, Khairul Adib Yusof, Siti Aminah Bahari   +7 more
doaj   +1 more source

Earthquake multi-classification detection based velocity and displacement data filtering using machine learning algorithms

Scientific Reports, 2022
Earthquake is one of the natural disasters that have a big impact on society. Currently, there are many studies on earthquake detection. However, the vibrations that were detected by sensors were not only vibrations caused by the earthquake, but also ...
Muhammad Ary Murti, Rio Junior, Ali Najah Ahmed, Ahmed Elshafie   +3 more
doaj   +1 more source

Deep learning detects uncataloged low-frequency earthquakes across regions

Seismica
Documenting the interplay between slow deformation and seismic ruptures is essential to understand the physics of earthquakes nucleation. However, slow deformation is often difficult to detect and characterize.
Jannes Münchmeyer, Sophie Giffard-Roisin, Marielle Malfante, William Frank, Piero Poli, David Marsan, Anne Socquet   +6 more
doaj   +1 more source

CCFE: A Few-Shot Learning Model for Earthquake Detection and Phase Identification

IEEE Access, 2022
Earthquake detection and phase identification are fundamental and challenging tasks in observational seismology. Deep learning has achieved considerable progress in these two tasks.
Peng Zhao, Shao Yongqian, Xia Shian
doaj   +1 more source

Consecutive statistical evaluation framework for earthquake forecasting: Evaluating satellite surface temperature anomaly detection methods

Journal of Asian Earth Sciences: X, 2022
Short-term earthquake prediction remains a challenge. In this study, we investigated earthquake predictability using a consecutive statistical evaluation framework (CSEF).
Zhong-Hu Jiao, Xinjian Shan
doaj   +1 more source

Compatibility of Methacrylate Based Resins Controls Interfacial Failure and Toughness in 3D‐Printed Multimaterial Composites

Advanced Engineering Materials, EarlyView.
This work shows that the mechanical performance of multimaterial digital light processing (DLP) printed thermoset composites is governed by resin compatibility and interfacial design rather than spatial patterning alone. Brittle and ductile resin combinations produced premature interfacial failure, while graded interfaces and mechanically compatible ...
Ahmed M. H. Ibrahim, Li Meng, Ahmad R. Najafi, Nicolas J. Alvarez   +3 more
wiley   +1 more source

Tough, Ductile, and Strong Hard‐Soft Cementitious Composite Enabled by Multi‐Material Additive Manufacturing

Advanced Materials, EarlyView.
Drawing inspiration from the layered hard‐soft architecture found in sea sponges, this work establishes a new framework for architected cementitious composites (ACC) through multi‐material additive manufacturing (MMAM) process. The integration of mortar and elastomer phases into layered architectures enables synergistic toughening mechanisms, including
Aimane Najmeddine, Shashank Gupta, William Makinen, Zayvinn Lin, Krystal Delnoce, Reza Moini   +5 more
wiley   +1 more source

High resolution catalog of the Luxian (Sichuan, China) MS6.0 earthquake sequence and analysis of the seismogenic structuresKey points

Earthquake Science
The epicenter of the Luxian MS6.0 earthquake on September 16, 2021, was located in the southern Sichuan Basin, which is a historically seismically quiescent area.
Huili Guo, Dahu Li, Pingping Wu, Qiyan Yang, Ningbo Jiang, Mi Gao, Zhifeng Ding   +6 more
doaj   +1 more source