Many know the valve Antisismic Ighina and there prolong its description (give links at the end); those who do not know is that since in Italy, two years and 8 months now, have been installed 23 valves built by Domenico, smaller than the original Ighina but very powerful, there were not more significant earthquakes, meaning for significant earthquakes exceeding 5.5 ° Richter they do damage and deaths; while we only had small tremors from 4th Richter which are welcome because they serve to drain the energy of the faults, and this is precisely the objective of the valves.
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incomplete map of valves in Italy:
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Earthquake in London today:
http://www.corriere.it/esteri/15_maggio_22/terremoto-100-km-londra-scossa-avvertita-tutta-l-inghilterra-c98a49dc-0044-11e5-9620-f7b479d580d7.shtml
In Italy,from four years, since they were installed 27 valves antiseismic Ighina, there were no more significant earthquakes..
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From four years and one month...no problem....
I think in recent months in Central Italy there had to be the big one Italian, one shot from 7.5-8 °
That would have destroyed even Rome.
With the help of some saint and Ighina valves, the blow was diluted in 3 months,
the test is abnormal sequence of shocks:
there is usually a strong blow and then many bottarelle weaker,
but this time we had swings
from 6 ° to 5.4 ° to 5.9 ° to 6.5 ° to 4.8°.....