Results 51 to 60 of about 272 (140)

Analysis of dynamic path loss based on the RSSI model for rupture location analysis in underground wireless sensor networks and its implications for Earthquake Early Warning System (EEWS)

International Journal of Automation and Smart Technology, 2015
Sensors deployed in underground tunnels found that radio frequency signals suffer significant signal strength attenuation which can result in considerable variation of link quality on the receiving end. This study analyzes the received signal strength index (RSSI) based on  the development of a theoretical wireless sensor model for  data  collection by
Pushan Kr Dutta, O.P. Mishra, M.K. Naskar   +2 more
openaire   +3 more sources

Impact assessment of earthquake early warning systems in Central America

Earthquake Spectra, Volume 41, Issue 4, Page 3094-3122, November 2025.
Earthquake Early Warning (EEW) systems aim to alert users in advance of imminent shaking, enabling them to take action. In collaboration with local seismic agencies, the Swiss Seismological Service (SED), has developed national EEW systems across Central America.
Benazir Orihuela, Athanasios N Papadopoulos, John Clinton, Griselda Marroquin, Marino Protti, Wilfried Strauch, Robin Yani‐Quiyuch, Laurentiu Danciu, Stefan Wiemer   +8 more
wiley   +1 more source

Mutual‐Support Groups for Alcohol and Other Drug Use in East, South and Southeast Asia: A Scoping Review

Drug and Alcohol Review, Volume 44, Issue 6, Page 1711-1755, September 2025.
ABSTRACT Issues Given the growing need to understand mutual‐support groups for alcohol and other drug (AOD) recovery across diverse cultural contexts, it is essential to comprehensively examine these groups in East, South and Southeast Asia, including strategies to enhance their cultural appropriateness and their effectiveness.
Wan Jie Tan, Briony Larance, Emma E. Walter, Chloe J. Haynes, Peter J. Kelly   +4 more
wiley   +1 more source

PEGSGraph: A Graph Neural Network for Fast Earthquake Characterization Based on Prompt ElastoGravity Signals

Journal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 1, March 2025.
Abstract State‐of‐the‐art earthquake early warning systems use the early records of seismic waves to estimate the magnitude and location of the seismic source before the shaking and the tsunami strike. Because of the inherent properties of early seismic records, those systems systematically underestimate the magnitude of large events, which results in ...
Céline Hourcade, Kévin Juhel, Quentin Bletery   +2 more
wiley   +1 more source

A Framework for Evaluating Earthquake Early Warning for an Infrastructure Network: An Idealized Case Study of a Northern California Rail System

Frontiers in Earth Science, 2021
Earthquake early warning (EEW) systems provide a few to tens of seconds of warning before shaking hits a site. Despite the recent rapid developments of EEW systems around the world, the optimal alert response strategy and the practical benefit of using ...
Sarah E. Minson, Elizabeth S. Cochran, Stephen Wu, Stephen Wu, Shunta Noda   +4 more
doaj   +1 more source

Single Station Seismic Event Location With a Neural‐Guided Mixture Model: Model‐Based Weighting for Improved Accuracy

Journal of Geophysical Research: Machine Learning and Computation, Volume 1, Issue 4, December 2024.
Abstract In many regions of the world with complex seismic activity, the availability of seismic stations is limited. This motivated us to develop a probabilistic method for single‐station earthquake location. Single station location methods may provide an efficient and cost‐effective way to monitor small‐magnitude seismic events over large areas of ...
Jorge D. Castro, Cecilia Meneses‐Ponce, Roberto Ortega, Joel Beltran‐Gracia, Hector Gonzalez‐Huizar   +4 more
wiley   +1 more source

Using ruptures from an earthquake cycle simulator to test geodetic early warning system performance

Seismica
New Zealand's vulnerability to seismic hazards highlights the need for systems capable of providing earthquake early warning (EEW) alerts or rapid notice of strong shaking.
Margarita M Solares Colon, Diego Melgar, Andrew Howell, Brendan Crowell, Elisabetta D'Anastasio, Emmanuel Caballero, Bill Fry   +6 more
doaj   +1 more source

An IEEE21451-001 Compliant Smart Sensor for Early Earthquake Detection

IEEE Open Journal of Instrumentation and Measurement, 2023
This article introduces a novel smart sensor that employs an advanced algorithm for earthquake early warning (EEW). The sensor utilizes a smart sampling technique to extract significant signal information, simplifying the process of inferring knowledge ...
Marco Carratu, Salvatore Dello Iacono, Vincenzo Paciello, Antonio Espirito-Santo, Gustavo Monte   +4 more
doaj   +1 more source

An All‐In‐One Rapid Prediction of Ground Motion Intensity Measures Hybrid Network for Multi‐Task in the North‐South Seismic Belt of China

Earth and Space Science, Volume 11, Issue 10, October 2024.
Abstract The north‐south seismic belt of China poses a high risk of earthquakes, necessitating the need for accurate and rapid prediction of intensity measures (IMs) to prevent and mitigate potential damage. We have developed a new multi‐task model, CRAQuake, to predict IMs for the north‐south seismic belt of China.
Qingxu Zhao, Mianshui Rong, Bin Zhang, Xiaojun Li   +3 more
wiley   +1 more source

Optimization of Network-Based Earthquake Early Warning Systems on the Korean Peninsula

IEEE Access, 2022
Most countries and local governments provide earthquake services in the public domain, and they must have high accuracy. If a missed alarm of the Earthquake Early Warning (EEW) system causes many casualties, or if the industrial system is temporarily ...
Seongheum Cho, Jae-Kwang Ahn, Eui-Hong Hwang   +2 more
doaj   +1 more source