![Ionospheric precursor for a deep earthquake (∼378 km) near Papua New Guinea occurred on 7 July 2013,
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= 7.2 in the environment of geomagnetic storm using two-dimensional principal component analysis]()
Ionospheric precursor for a deep earthquake (∼378 km) near Papua New Guinea occurred on 7 July 2013,
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= 7.2 in the environment of geomagnetic storm using two-dimensional principal component analysisLin, Jyh-Woei · Georisk: Assessment and Management of Risk for Engineered Systems and Geohazards · 2014