This symptom may indicate an approaching earthquake.
Experts noticed that before strong tremors are often observed bursts of magnetic fields, and not only in a specific region, but around the globe as a whole.
See the data changes in the magnetic field can be anyone through an online service, for example, Global Coherence Initiative. This service displays the progress of the 6 magnetic field sensors. The eighth of September was a pretty big leap in detector GCI006, which is located in Hluhluwe (South Africa).
Scientists can’t say why the device has displayed a powerful surge of electromagnetic waves at low frequencies between the earth and the ionosphere. Below is the spectrogram with the visualization of the incident. Yellow indicates the maximum power of the power of the electromagnetic field.
The experts can not determine the cause of anomalies that occur in South Africa. Perhaps in the coming days there will be a strong enough earthquake. It is not excluded seismic activity in tectonic plates of Nazca.
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