Results 81 to 90 of about 24,679 (283)

Full-waveform inversion reveals diverse origins of lower mantle positive wave speed anomalies

Scientific Reports
Determining Earth’s structure is paramount to unravel its interior dynamics. Seismic tomography reveals positive wave speed anomalies throughout the mantle that spatially correlate with the expected locations of subducted slabs. This correlation has been
Thomas L. A. Schouten, Lars Gebraad, Sebastian Noe, Anna J. P. Gülcher, Solvi Thrastarson, Dirk-Philip van Herwaarden, Andreas Fichtner   +6 more
doaj   +1 more source

Abrupt Along‐Strike Change of Shallow Seismicity in Central and Southern Myanmar: Insights From High‐Resolution Local‐Earthquake Catalogs and Focal Mechanisms

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract Myanmar's high seismic hazard is underscored by the 2025 Mw 7.7 earthquake on the Sagaing Fault, yet its seismicity patterns and underlying controls remain poorly understood. Using new seismic data from the 2nd‐phase array of the China‐Myanmar Geophysical Survey in the Myanmar Orogen, we construct a high‐resolution catalog of 1,819 local ...
Mingming Jiang, Chit Thet Mon, Shun Yang, Yumei He, Yue Zhu, Changfeng Ren, Myo Thant, Yinshuang Ai, Yuan Ling, Guangbing Hou, Yun Wen, Kyaing Sein   +11 more
wiley   +1 more source

静动力边界转换及其合理性验证方法的研究

Dizhen xuebao
繁琐复杂的静动力边界转换处理是进行静动力耦合模拟的关键步骤，为了研究黏弹性边界条件下传统静动力边界转换的合理性及其验证方法的适用性，本文首先根据弹性叠加原理提出了一种验证静动力耦合模拟分析中静动力边界转换合理性的方法（参考解法）；然后基于有限元软件ABAQUS，并结合自行研发的适用于成层介质的黏弹性边界施加和等效节点力计算程序VBEA2.0，对多土层自由场静动力耦合模型和土-地下结构静动力耦合模型进行了地震反应分析，对参考解法的适用性进行了探究；最后使用本文提出的参考解法 ...
Shengjie Ma, Mingjie Chi, Xueliang Chen, Su Chen, Hongjuan Chen, Haojie Xing   +5 more
doaj   +1 more source

Celebrating the Physics in Geophysics

, 2005
As 2005, the International Year of Physics, comes to an end, two physicists working primarily in geophysical research reflect on how geophysics is not an applied physics.
Anderson, Anthony B. Davis, Bak, Didier Sornette, Oreskes   +4 more
core   +1 more source

The Role of Normal Stress and Shear Stress Heterogeneity in the Inferred Depth‐Independence of Stress Drop

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract Earthquake stress drops are inferred to be independent of source depth, contradicting linear scaling predictions for earthquakes as frictional stick‐slip instabilities that assume increasing fault normal stress due to overburden. Here, we examine the scaling between averaged stress drops and increasing normal stress for simulated earthquake ...
Minghan Yang, Valère Lambert, Emily E. Brodsky   +2 more
wiley   +1 more source

Design and implementation of Awas Guncang: A mobile app for future dissemination of InaEEWS [PDF]

E3S Web of Conferences
Indonesia is a country with a high level of seismic risk, making an effective Earthquake Early Warning System (EEWS) crucial. The Agency of Meteorology, Climatology, and Geophysics (BMKG) has been developing the Indonesia Earthquake Early Warning System (
Kurniawan Hanif, Frederik Mustamu Abraham, Putra Maulana, Nardi, Bratasena Alhaq Arya, Reza July Utama Muhammad, Fajri Miftakhunnisa Aurora, Heryanto Rusanto Benyamin   +7 more
doaj   +1 more source

Elevated Asthenospheric Temperature Driving the Partial Melting of Enriched Lithospheric Mantle Feeding the DM‐EM1 Mixing‐Type Magmatism of the Jingpohu Volcano in Eastern NE China: Evidence From Teleseismic P‐Wave Attenuation

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract The origin of a binary‐mixing of DM and EM1 sources for the Cenozoic intraplate volcanism in eastern Northeast China is yet unclear. Seismic attenuation imaging is a tool that can shed light on this question. Here we present the first map of teleseismic P‐wave attenuation across Northeast China.
Hanlin Liu, Qingju Wu, Maximiliano Bezada, Shunping Pei, Joseph S. Byrnes, Wei Liu   +5 more
wiley   +1 more source

A Restoration Method for Impulsive Functions [PDF]

, 1977
A method is presented for enhancing the resolution of impulsive functions which have been degraded by a known convolutional disturbance and by the addition of white noise.
Clayton, Robert W., Ulrych, Tadeusz J.
core  

Predicting Atmospheric Effective Sound Speed Using Synthetic Infrasound and Machine Learning

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract We introduce a machine learning (ML) model that reconstructs atmospheric conditions at the location of an explosive source using regionally recorded synthetic infrasound. A convolutional neural network (CNN) processes full waveforms and source‐receiver geometries to estimate the vertical profile of effective sound speed.
Alex Witsil, Stefan Awender, David Fee, Roger Waxler, Mark Leidig   +4 more
wiley   +1 more source

Equipment of seismic station IRIS KIEV and software interface for access to seismological data

Геофизический журнал, 2019
The monitoring hazardous natural processes in order to assess risks to the public and industrial facilities and ensure safety has become the starting point for the creation of appropriate monitoring systems.
I. Yu. Mikhaylik, A. Z. Ganiev, K. V. Petrenko, T. A. Amashukeli   +3 more
doaj   +1 more source