Investigation of atmospheric anomalies associated with Kashmir and Awaran Earthquakes

Mahmood, Irfan; Iqbal, Muhammad Farooq; Shahzad, Muhammad Imran; Qaiser, Saddam

doi:10.1016/j.jastp.2016.12.018

Cited by 34 publications

(11 citation statements)

References 39 publications

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“…Spatial distribution of SLHF peaks compared to the background years during 128-136 Julian days of 2015, red and black stars are the location of main earthquake and aftershock events, respectively. and beyond (ionosphere) (Dunajecka and Pulinets, 2005;Pulinets and Dunajecka, 2007;Daneshvar et al, 2014;Mahmood et al, 2017). Therefore an integrated approach combining land, atmosphere, meteorological and ionospheric parameters is recommended for a relaible information about an impending earthquake (Singh et al, 2010c).…”

Section: Discussionmentioning

confidence: 99%

Land – Atmosphere – Meteorological coupling associated with the 2015 Gorkha (M 7.8) and Dolakha (M 7.3) Nepal earthquakes

Jing

Singh

Shen

2019

Geomatics, Natural Hazards and Risk

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Multiple parameters (brightness temperature, soil moisture, surface latent heat flux, surface air temperature and carbon monoxide) before and after the 2015 Nepal M7.8 Gorkha main earthquake and M7.3 Dolakha aftershock were analysed using satellite observation data. The thermal anomalies from optical and microwave data appear about two months prior to the 2015 Gorkha earthquake. Some of the parameters show anomalous changes at different altitudes about 20 days prior to the main earthquake event and 10 days prior to the strong aftershock. Our results show that pre-earthquake anomalous signals propagate from the in situ to the top of atmosphere, and the anomalies in the atmosphere often observed prior to an impending earthquake. The changes on the land surface and corresponding changes in meteorological and atmospheric parameters show existence of strong coupling during the seismogenic period, although the transfer mechanism of seismic/electromagnetic is still has to be investigated and understood.

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Section: Discussionmentioning

confidence: 99%

Land – Atmosphere – Meteorological coupling associated with the 2015 Gorkha (M 7.8) and Dolakha (M 7.3) Nepal earthquakes

Jing

Singh

Shen

2019

Geomatics, Natural Hazards and Risk

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“…The general anomaly method is to find the difference between current data during an earthquake and the long-term average value (also called a reference value) in order to improve result robustness and eliminate potential bias (Mahmood et al, 2017;Qin et al, 2014a;Wu et al, 2016). This method can be expressed as…”

Section: Image Difference Methodsmentioning

confidence: 99%

“…The preliminary step is to identify which precursors present anomalous variations prior to strong earthquakes around the epicenter. OLR, air temperature, and relative humidity were used in the seismic anomaly analysis for the 2005 M w 7.6 Kashmir and 2013 M w 7.7 Awaran earthquakes (Mahmood et al, 2017). Singh et al (2007) analyzed changes in SLHF, atmospheric water vapor, SST, wind, cloud liquid water, precipitation rate, and chlorophyll concentrations prior to and after the 2004 Sumatra earthquake.…”

Section: Multiparameter Comprehensive Analysismentioning

confidence: 99%

Pre-seismic anomalies from optical satellite observations: a review

Jiao

Zhao

Shan

2018

Nat. Hazards Earth Syst. Sci.

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Abstract. Detecting various anomalies using optical satellite data prior to strong earthquakes is key to understanding and forecasting earthquake activities because of its recognition of thermal-radiation-related phenomena in seismic preparation phases. Data from satellite observations serve as a powerful tool in monitoring earthquake preparation areas at a global scale and in a nearly real-time manner. Over the past several decades, many new different data sources have been utilized in this field, and progressive anomaly detection approaches have been developed. This paper reviews the progress and development of pre-seismic anomaly detection technology in this decade. First, precursor parameters, including parameters from the top of the atmosphere, in the atmosphere, and on the Earth's surface, are stated and discussed. Second, different anomaly detection methods, which are used to extract anomalous signals that probably indicate future seismic events, are presented. Finally, certain critical problems with the current research are highlighted, and new developing trends and perspectives for future work are discussed. The development of Earth observation satellites and anomaly detection algorithms can enrich available information sources, provide advanced tools for multilevel earthquake monitoring, and improve short- and medium-term forecasting, which play a large and growing role in pre-seismic anomaly detection research.

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Section: Image Difference Methodsmentioning

confidence: 99%

Pre-seismic Thermal Anomalies from Satellite Observations: A Review

Jiao

Zhao

Shan

2017

Preprint

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Abstract. Detecting thermal anomalies prior to strong earthquakes is a key in understanding and forecasting earthquake activities because of its recognition of thermal radiation-related phenomena in seismic preparation phases. Data from satellite observations serve as a powerful tool in monitoring earthquake preparation areas at a global scale and in a nearly real-time 10 manner. Over the past several decades, many new different data sources have been utilized in this field, and progressive anomaly detection approaches have been developed. This paper dedicatedly reviews the progress and development of preseismic thermal anomaly detection technology in this decade. First, precursor parameters, including parameters from the top of the atmosphere, in the atmosphere, and on the Earth's surface, are discussed. Second, different anomaly detection methods, which are used to extract thermal anomalous signals that probably indicate future seismic events, are presented. Finally, certain 15 critical problems with the current research are highlighted, and new developing trends and perspectives for future work are discussed. The development of Earth observation satellites and anomaly detection algorithms can enrich available information sources, provide advanced tools for multilevel earthquake monitoring and improve short-and medium-term forecasting, which should play a large and growing role in pre-seismic thermal anomaly research.

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Investigation of atmospheric anomalies associated with Kashmir and Awaran Earthquakes

Cited by 34 publications

References 39 publications

Land – Atmosphere – Meteorological coupling associated with the 2015 Gorkha (M 7.8) and Dolakha (M 7.3) Nepal earthquakes

Land – Atmosphere – Meteorological coupling associated with the 2015 Gorkha (M 7.8) and Dolakha (M 7.3) Nepal earthquakes

Pre-seismic anomalies from optical satellite observations: a review

Pre-seismic Thermal Anomalies from Satellite Observations: A Review

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