Results 81 to 90 of about 3,794,404 (268)

Accuracy analysis of various earthquake catalogs based on ground truth locations：Several M5 earthquakes in the southwest region of China

地震科学进展
Accurate epicenter location is crucial for assessing seismic hazards and risks, investigating seismicity, and exploring the Earth’s internal structure.
Jie Yang, Wangwang Gu, Han Zhang, Sidao Ni, Risheng Chu, Minhan Sheng, Baolong Zhang   +6 more
doaj   +1 more source

Evaluation of automatic hypocenter determination in the JMA unified catalog

Earth, Planets and Space, 2018
The Japan Meteorological Agency (JMA) unified seismic catalog has been widely used for research and disaster prevention purposes for more than 20 years. Since the introduction in April 2016 of an improved method of automatic hypocenter determinations (PF
Koji Tamaribuchi
doaj   +1 more source

Collocated Geotechnical and Geophysical Test Dataset at Three Sites in Napier, New Zealand

Earthquake Spectra, Volume 42, Issue 4, November 2026.
Reliable assessment of liquefaction hazard, particularly in the context of groundwater fluctuations associated with hydroclimatic changes and variability between liquefaction assessment methods, necessitates supplementary data and advanced site characterization methods.
Aavash Ghimire, Kaleigh M. Yost, Andrew Stolte, Rolando Orense, Alfonso Mejia   +4 more
wiley   +1 more source

Rocking and Rolling of Rigid Polygons Under Seismic Excitation

Earthquake Engineering &Structural Dynamics, Volume 55, Issue 12, Page 3161-3180, 10 October 2026.
ABSTRACT We present an event driven analytical framework for rigid cyclic polygons subjected to horizontal ground excitation in which uplift, impact, and successive pivot switching are treated within a unified non‐smooth dynamical description. Rolling is defined as a sequence of energetically admissible transitions between neighbouring vertices tied to
Atif Rasheed, Christian Málaga‐Chuquitaype   +1 more
wiley   +1 more source

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

Sensors
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 rapid
Wei-Fang Sun, Sheng-Yan Pan, Yao-Hung Liu, Hao Kuo-Chen, Chin-Shang Ku, Che-Min Lin, Ching-Chou Fu   +6 more
doaj   +1 more source

Building self-consistent, short-term earthquake probability (STEP) models: improved strategies and calibration procedures

Annals of Geophysics, 2010
We present here two self-consistent implementations of a short-term earthquake probability (STEP) model that produces daily seismicity forecasts for the area of the Italian national seismic network.
Damiano Monelli, J. Douglas Zechar, Annemarie Christophersen, Jochen Woessner   +3 more
doaj   +1 more source

Quantifying the Role of 3D Fault Geometry Complexities on Slow and Fast Earthquakes

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Traditional models of slow slip events (SSEs) oversimplify fault geometry, although imaging shows subduction faults are segmented and complex. We examine how fault interactions control slip behavior using 3D quasi‐dynamic simulations of two parallel faults with uniform rate‐weakening friction accelerated by hierarchical matrices.
J. Cheng, H. S. Bhat, M. Almakari, B. Lecampion, P. Dubernet   +4 more
wiley   +1 more source

Structural Heterogeneity Shapes Segmentation of Megathrust Earthquakes and Volcanism in Central America

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract The mechanisms underlying the patchy distribution of forearc megathrust earthquakes and arc volcanoes in subduction zones remain poorly understood. Here we present a high‐resolution seismic tomographic model of the Central American subduction zone, derived from a joint inversion of local body‐wave and teleseismic Rayleigh‐wave data.
Junhao Zhang, Xin Liu, Dapeng Zhao, Yibo Zang   +3 more
wiley   +1 more source

Improving deep learning for earthquake detection and localization with big data and high-performance computation in Hawai’i

Machine Learning. Earth
Earthquake and volcano monitoring depend on earthquake detections and locations. With the continuous expansion of seismic networks and the surge in earthquake data volume, deep-learning-based approaches have been developed and achieved better performance
Zhangbao Cheng, Yang Shen
doaj   +1 more source

Regional Seismic Information Entropy to Detect Earthquake Activation Precursors

Entropy, 2018
A method is presented to detect earthquake precursors from time series data on earthquakes in a target region. The Regional Entropy of Seismic Information (RESI) is an index that represents the average influence of an earthquake in a target region on the
Yukio Ohsawa
doaj   +1 more source