Variation in natural short-period ionospheric noise, and acoustic and gravity waves revealed by the amplitude analysis of a VLF radio signal on the occasion of the Kraljevo earthquake (Mw = 5.4).

We analyse the lower ionosphere disturbances in the time period around the Mw 5.4 Kraljevo earthquake (EQ), which occurred on 3 November 2010 in Serbia. The results presented herein are based on analysis of the amplitudes of three VLF signals emitted in Italy, UK, and Germany and recorded in Serbia whose variations primarily result from changes in the electrical properties of the lower ionosphere at a distance more than 120 km from the epicentre of the EQ.

Earthquake science research with a microsatellite.

Reliable, repeatable earthquake forecast is a subject surrounded by controversy and scepticism. What is clear is that reliable forecast would be a critical tool for effective earthquake disaster management. It is proposed that satellites and ground-based facilities may detect earthquake precursors in the ionosphere a few hours or days before the main shock.

[Biotropic effects of geomagnetic storms and their seasonal variations].

A substantial effect of geomagnetic storms on human health with a confidential probability P = 0.95 was revealed. The quantitative estimates of the biotropic effect are presented.

[Severe trauma rate during planet geomagnetic storms].

The growth of the diurnal frequency of appearance of heavy traumas during planetary geomagnetic storms is shown and statistically justified. No effect of short-term geomagnetic disturbances of natural and technogenic nature on the occurrence of acute mental and cardiovascular pathologies was detected on the basis of diurnal data.