Pre-earthquake ionospheric anomalies before three major earthquakes by GPS-TEC and GIM-TEC data during 2015–2017

MA Tariq, M Shah, M Hernández-Pajares… - Advances in Space …, 2019 - Elsevier
The dual-frequency satellite-based measurements from Global Positioning System (GPS)
may provide feasible ways of studying and potentially detecting of earthquake (EQ) related …

Seismic indicators based earthquake predictor system using Genetic Programming and AdaBoost classification

KM Asim, A Idris, T Iqbal, F Martínez-Álvarez - Soil Dynamics and …, 2018 - Elsevier
In this study an earthquake predictor system is proposed by combining seismic indicators
along with Genetic Programming (GP) and AdaBoost (GP-AdaBoost) based ensemble …

[HTML][HTML] Imputation by feature importance (IBFI): A methodology to envelop machine learning method for imputing missing patterns in time series data

AA Mir, KJ Kearfott, FV Çelebi, M Rafique - PloS one, 2022 - journals.plos.org
A new methodology, imputation by feature importance (IBFI), is studied that can be applied
to any machine learning method to efficiently fill in any missing or irregularly sampled data. It …

Automated anomalous behaviour detection in soil radon gas prior to earthquakes using computational intelligence techniques

ADK Tareen, KM Asim, KJ Kearfott, M Rafique… - Journal of environmental …, 2019 - Elsevier
In this article, three computational intelligence (CI) models were developed to automatically
detect anomalous behaviour in soil radon gas (222 Rn) time series data. Data were …

Implication of radon monitoring for earthquake surveillance using statistical techniques: a case study of Wenchuan earthquake

A Alam, N Wang, G Zhao, A Barkat - Geofluids, 2020 - Wiley Online Library
The seismotectonically induced changes in groundwater radon (Rn) are considered to be
strong imputes for the surveillance of imminent major earthquakes. Groundwater facilitates …

Time series analysis of soil radon in Northern Pakistan: Implications for earthquake forecasting

A Barkat, A Ali, U Hayat, QG Crowley, K Rehman… - Applied …, 2018 - Elsevier
Time series analysis of soil radon data has previously been proposed as a mechanism for
earthquake hazard forecasting, but it is not universally accepted as such. Here we perform …

First seasonal and annual variations of atmospheric electric field at a subtropical station in Islamabad, Pakistan

SF Gurmani, N Ahmad, J Tacza, T Iqbal - Journal of Atmospheric and Solar …, 2018 - Elsevier
The variation of the atmospheric electric field from the ground is analyzed by using an
electric field mill sensor for Islamabad, Pakistan. The first early results of atmospheric electric …

[HTML][HTML] Ionospheric precursors of strong earthquakes observed using six GNSS stations data during continuous five years (2011–2015)

HE Eshkuvatov, BJ Ahmedov, YA Tillayev… - Geodesy and …, 2023 - Elsevier
This study reports the morphological characteristics of anomalous variations in Global
Navigation Satellite System Total Electron Content (GNSS-TEC) prior to the strong local …

Fluctuation Dynamics of Radon in Groundwater Prior to the Gansu Earthquake, China (22 July 2013: Ms = 6.6): Investigation with DFA and MFDFA Methods

A Alam, N Wang, E Petraki, A Barkat, F Huang… - Pure and Applied …, 2021 - Springer
The present study reports measurements of radon in groundwater conducted in China
between January and December 2013. During the measurement period, a great M s= 6.6 …

Lifetime cancer risk increase due to consumption of some foods from a High Background Radiation Area

WS Pereira, JM Lopes, A Kelecom, RWD Garcêz… - Applied Radiation and …, 2021 - Elsevier
Activity concentration (AC) in foods produced and commonly consumed in a High
Background Radiation Area (HBRA) was analyzed. The AC were obtained by …