The earthquake that hit Pakistan today was superficial and and 'took place in one of the most' complex of the Earth, the meeting point of three tectonic plates. "The earthquake and 'took place at a depth' of a few tens of kilometers, and 'therefore potentially harmful, hit a wide area, but very sparsely populated," said seismologist of the National Institute of Geophysics and Volcanology (INGV), Gianluca Valensise. What struck today in Pakistan "and 'one of the most' complex Earth since 'and' the meeting point of the Indian plate, to the southeast, the Arabian plate to the southwest and the Eurasian plate to the north." "We found - said the seismologist - that the earthquake and 'was created by a tectonic structure known, called fault Kirthar, oriented towards North-East." According to preliminary estimates the rupture of the fault could have considerable extension, up to 200 km and touches the hill country and desert of Baluchistan, looking out on the 'Indian Ocean. "In this area - says Valensise - is a mountain range with many systems of folds, generated by the movement of compression caused by the meeting of the three plaques". In this zone, in fact, both the Indian plate is that Arab push against the Eurasian plate and glide progressively below the latter at the rate of, respectively, 4:02 centimeters per year. The last earthquake in this area and comparable to that of today dates back to 1935, in Quetta, with a magnitude of between 7.7 and 7.8.