vous en voulez une autre ?
ces dernières années nous avons eu droit à une série de séismes dévastateurs(je ne parle pas de Fuku, car tout le monde sait aujourdhui que cette catastrophe n’a rien à voir avec un séisme ou un tsunami) qui ont pu faire croire que dame gaia était en colère
une étude récente montre qu’il n’en est rien
Although it may seem that we are having more earthquakes, earthquakes of magnitude 7.0 or greater have remained fairly constant.
A partial explanation may lie in the fact that in the last twenty years, we
have definitely had an increase in the number of earthquakes we have
been able to locate each year. This is because of the tremendous
increase in the number of seismograph stations in the world and the many
improvements in global communications. In 1931, there
were about 350 stations operating in the world ; today, there are more
than 8,000 stations and the data now comes in rapidly from these
stations by electronic mail, internet and satellite. This increase in
the number of stations and the more timely receipt of data has allowed
us and other seismological centers to locate earthquakes more rapidly
and to locate many small earthquakes which were undetected in earlier
years. The NEIC now locates about 20,000 earthquakes each year or
approximately 50 per day. Also, because of the improvements in
communications and the increased interest in the environment and natural
disasters, the public now learns about more earthquakes.
donc rien de spécial à signaler, sinon les gesticulations des habitués du club
une bonne nouvelle donc