Results 31 to 40 of about 11,668 (163)
Quantitative Examination of Piezoelectric/Seismoelectric Anomalies from Near-Surface Targets
The piezoelectric and seismo-electrokinetic phenomena are manifested by electrical and electromagnetic processes that occur in rocks under the influence of elastic oscillations triggered by shots or mechanical impacts.
Lev Eppelbaum
doaj +1 more source
High-frequency seismo-electromagnetic effects
International audienceElectromagnetic perturbations caused by natural geophysical activity, such as earthquakes and volcanic eruptions, have been studied since the great Alaskan earthquake in 1964.
Villain, J.P. +9 more
core +1 more source
Abstract This study investigates the spectral and dynamic characteristics of turbulent fluctuations in the electric field within equatorial plasma bubbles using data from the Electric Field Detector aboard the China Seismo‐Electromagnetic Satellite‐01.
P. De Michelis +4 more
wiley +1 more source
Seismic Waves Do Sense Fracture Connectivity: Experimental Validation
Abstract Fracture connectivity is a key parameter controlling fluid flow throughout the Earth's crust. While some theoretical and numerical studies suggest that seismic waves are sensitive to fracture connectivity, an experimental validation of this critically important phenomenon was so far unavailable.
Yanbin He +9 more
wiley +1 more source
Seismo‐Acoustic Detection and Localization of Iceberg Collapse in Atka Bay, Antarctica
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 +5 more
wiley +1 more source
Physics of Seismo-electromagnetic Phenomena [PDF]
The seismo-electromagnetic phenomena (SEMG) are integrated in a relatively recent research field that studies diverse phenomena such as: unusual seismo-electrical signals [1], abnormal ultra-low-frequency (ULF) seismo-electromagnetic emissions [2], very ...
Reis, A.H. +16 more
core
Four‐Peak Structure on Equatorial Ionization Anomaly Crests During the May 2024 Geomagnetic Storms
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 +12 more
wiley +1 more source
SEISMO-ELECTROMAGNETIC PHENOMENA IN TECTONICALLY ACTIVE REGIONS [PDF]
This work presents a research plan that aims to monitor seismo-electromagnetic signals in seismic active regions. Two effects will be considered: electromagnetic field emissions and radio broadcastings.
Reis, A.H. +9 more
core
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
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 +2 more
wiley +1 more source

