Results 41 to 50 of about 1,577 (144)

Seismo‐Acoustic Detection and Localization of Iceberg Collapse in Atka Bay, Antarctica

Geophysical Research Letters, Volume 52, Issue 23, 16 December 2025.
Abstract On 12 January 2022, an iceberg collapsed at the edge of frozen Atka Bay, Antarctica. The event generated seismic, hydroacoustic, and atmospheric infrasound waves recorded by a local network comprising land‐ and iceshelf‐based seismometers, an underwater hydrophone, and an on‐ice infrasound array.
G. Averbuch, A. Houstin, D. P. Zitterbart, J. Bonnel, J. A. Collins, J. D. Assink   +5 more
wiley   +1 more source

Ionospheric disturbances around the time of the Ms7.0 Lushan earthquake [PDF]

, 2013
:Variations of Vertical Total Electron Content (VTEC) in the ionosphere are investigated around the time of the Ms7. 0 Lushan earthquake. A time-series analysis shows an anomalous VTEC increase 15 days before as well as some anomalous VTEC decreases 5 ...
Yiyan, Zhou, Yun, Wu, Jian, Yang, Fuying, Zhu, Bin, Zhao   +4 more
core   +2 more sources

Four‐Peak Structure on Equatorial Ionization Anomaly Crests During the May 2024 Geomagnetic Storms

Space Weather, Volume 23, Issue 12, December 2025.
Abstract This study investigates the four‐peak electron density structure in the Equatorial Ionization Anomaly (EIA) during the intense geomagnetic storms of 10–20 May 2024, utilizing dayside data at ∼500 km from the China Seismo‐Electromagnetic Satellite (CSES‐01).
Weixing Pu, Yanyan Yang, Rui Yan, Shun‐Rong Zhang, Chao Xiong, Roberto Battiston, Zeren Zhima, Piersanti Mirko, He Huang, Giulia D’Angelo, Xiaoying Sun, Yuyang Huang, Zihang Wang   +12 more
wiley   +1 more source

Current challenges for preseismic electromagnetic emissions: shedding light from micro-scale plastic flow, granular packings, phase transitions and self-affinity notion of fracture process [PDF]

, 2013
Are there credible electromagnetic (EM) EQ precursors? This a question debated in the scientific community and there may be legitimate reasons for the critical views.
Eftaxias, K., Potirakis, S. M.
core   +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