Results 31 to 40 of about 113 (110)

Recent Progress in Seismo Electromagnetics (Electromagnetic Phenomena Associated with Earthquakes)

IEEJ Transactions on Fundamentals and Materials, 2006
Recent activity has been reviewed on the seismo electromagnetics (electromagnetic phenomena assosiated with earthquakes) with respect to the possibility of short-term earthquake prediction by means of electromagnetic phenomena.
openaire   +2 more sources

D‐Region Changes and Wave Activity Detected From Unusually Strong VLF Anomalies Associated With the January 2022 Tonga Volcanic Eruption

Journal of Geophysical Research: Space Physics, Volume 130, Issue 11, November 2025.
Abstract We present unusually strong daytime signal amplitude anomalies of 11.1 dB on JJI and 12.6 dB on VTX very low‐frequency (VLF) transmitter signals recorded at Suva, Fiji, due to the powerful Hunga Tonga–Hunga Ha'apai (HTHH) volcanic eruption (VE) on 15 January 2022 around 04:00 UT.
Sushil Kumar, Sarwan Kumar, Mie Ichihara
wiley   +1 more source

Multi‐Instrument Investigation of the Pre‐Seismic Ionospheric Response to 2021 Haiti Earthquake

Earth and Space Science, Volume 12, Issue 10, October 2025.
Abstract The study of pre‐seismic variations in the ionosphere due to 2021 Haiti earthquake (Mw = 7.2) is carried out using ground and space‐based instruments. The day time ionospheric response is analyzed using Vertical Total Electron Content (VTEC) from IGS stations and electron density from Swarm satellite data.
Sreeba Sreekumar, G. Manju, Tarun K. Pant   +2 more
wiley   +1 more source

A Closer Cooperation between Space and Seismology Communities – a Way to Avoid Errors in Hunting for Earthquake Precursors

Russian Journal of Earth Sciences
The space physicists and the earthquake (EQ) prediction community exploit the same instruments – magnetometers, but for different tasks: space physicists try to comprehend the global electrodynamics of near-Earth space on various time scales, whereas the
Pilipenko Vyacheslav, Shiokawa K.
doaj   +1 more source

Geophysical Observatory in Kamchatka region for monitoring of phenomena connected with seismic activity [PDF]

Natural Hazards and Earth System Sciences, 2001
Regular monitoring of some geophysical parameters in association with seismicity has been carried out since last year at the Japan-Russian Complex Geophysical Observatory in the Kamchatka region.
S. Uyeda, T. Nagao, K. Hattori, M. Hayakawa, K. Miyaki, O. Molchanov, V. Gladychev, L. Baransky, A. Chtchekotov, E. Fedorov, O. Pokhotelov, S. Andreevsky, A. Rozhnoi, Y. Khabazin, A. Gorbatikov, E. Gordeev, V. Chebrov, V. Sinitzin, A. Lutikov, S. Yunga, G. Kosarev, V. Surkov, G. Belyaev   +22 more
doaj  

Characteristics of Equatorial Electrojet Derived From MSS1A Observation: Initial Result

Earth and Space Science, Volume 12, Issue 5, May 2025.
Abstract In this study, we use the magnetic field data from the Coupled Dark State Magnetometer (CDSM) aboard the Macau Science Satellite‐1A (MSS1A) to calculate and analyze the equatorial electrojet (EEJ) in the period between November 2023 and December 2024.
Yuyang Huang, Chao Xiong, Fengjue Wang, Xinyi Rang, Yunliang Zhou, Bohao Qian, Qing Yan, Kuan Li, Keke Zhang, Yanyan Yang   +9 more
wiley   +1 more source

Critical analysis of the ULF power depression as a possible Tohoku earthquake precursorKey points

Earthquake Science
Among electromagnetic methods of short-term earthquake prediction, an approach is being actively developed based on the phenomenon of magnetic ultra-low-frequency (ULF) power depression occurring a few days before an earthquake.
Vyacheslav A. Pilipenko, Valery A. Martines-Bedenko, Akimasa Yoshikawa, Kirolosse M. Girgis   +3 more
doaj   +1 more source

The Magnetosphere‐Ionosphere‐Ground Responses to the May 2024 Super Solar Storm

Space Weather, Volume 23, Issue 4, April 2025.
Abstract Earth suffered the attack of the strongest geomagnetic storm in the last 20 years (Kp = 9, Dst∼ ${\sim} $ −400 nT) occurred on 11 May 2024. Taking advantage of the LEO multi‐parameter CSES satellite (launched in 2018) with a large inclination angle 97° $97{}^{\circ}$, with the joint observations of NOAA and GOES, we present a comprehensive ...
Zhenxia Zhang, Fang Zhang, Lu Wang, Xinqiao Li, Zeren Zhima, Yongfu Wang, Yanyan Yang, Dehe Yang, Shujie Li, Wei Chu, Na Zhou, Dedong Wang, Dali Zhang, Roberto Battiston, Roberto Iuppa, Xuhui Shen   +15 more
wiley   +1 more source

Analysis of Seismic Ionospheric Effects and Prediction of TEC During Earthquakes Occurred in Indonesia Based on GPS Data

Advances in Astronomy, Volume 2025, Issue 1, 2025.
Total electron content (TEC), which quantifies the quantity of free electrons in the Earth’s ionosphere, is a crucial parameter that experiences discrepancies during seismic events. This study investigates the potential of utilizing TEC prediction at the BAKO position in Indonesia during earthquakes. TEC data and solar parameters were collected for six
R. Mukesh, Sarat C. Dass, M. Vijay, S. Kiruthiga, Vijanth Sagayan Asirvadam, J. R. K. Kumar Dabbakuti   +5 more
wiley   +1 more source

An Improved Pattern Informatics Method for Extracting Ionospheric Disturbances Related to Seismicity Based on CSES Data: A Case Study of the Mw7.3 Maduo Earthquake

Earth and Space Science, Volume 11, Issue 12, December 2024.
Abstract The exploration of multi‐layer coupling mechanisms between earthquakes and the ionosphere is crucial for utilizing ionospheric precursors in earthquake prediction. A significant research task involves continuously tracking the spatio‐temporal changes in ionospheric parameters, acquiring comprehensive seismic anomaly information, and capturing “
Weixi Tian, Yongxian Zhang, Changhui Ju, Shengfeng Zhang, Maoning Feng, Fengli Liu   +5 more
wiley   +1 more source