Check patents related to HAARP to understand the technology of reversed
piezoelectric effect in which earth can tremble when energy is applied to
ionosphere. Scientific references will be underlining this further in this post:
And turn to some scientific backing: Ionospheric Precursors of
Earthquakes; Recent Advances in Theory
and Practical Applications.
http://tao.cgu.org.tw/pdf/v153p413.pdf
Theoretical Model of Possible Disturbances in the Nighttime Mid-Latitude
Ionospheric D Region over an Area of Strong-Earthquake Preparation
(Institute of Terrestrial Magnetism, Ionosphere, and Radio-Wave Propagation of
the Russian Academy of Sciences) [link
to www.springerlink.com]
Relationship between microseisms, geomagnetic activity and ionospheric
absorption of radio waves
(Geophysical Institute, Czechosl. Acad. Sci., Prague) [link
to www.springerlink.com]
MODELING OF THE ACOUSTO-ELECTROMAGNETIC METHOD FOR IONOSPHERE MONITORING
(Karpenko Physico-Mechanical Institute of the National Academy of Sciences of
Ukraine)
[link
to www.ursi.org]