I say "earthquakes"; but I suspect changes in underground water play a part...
At 02:03 UTC on May 20, 2012 - a day before the May 21 Solar Eclipse, a shallow 6.1 earthquake shook a wide area close to Parma, Northern Italy.
On September 8, 2011 - a few days before the September 11 Full Moon - a 3.7Mag earthquake was followed by a 48 hour swarm of earth tremors.
September 10, 2011 - Parma, Italy [approaching Full Moon] Mysterious Earthquake Swarms Near Parma Italy
According to historical Eclipse data NASA, an Annular Solar Eclipse took place on November 4, 1570 AD. On November 17, 1570 a Magnitude 5.5 earthquake shook Ferrara, Northern Italy (Po Valley).
Earthquake lights were seen above the city on November 15, 1570, the night before the first quake. After the initial shocks, an earthquake swarm shook the area with over two thousand aftershocks between November, 1570 until February, 1571. The release of methane, before the stress of the quakes.
May 20 2012 02:03:53UTC 44.90N 11.24E [Depth 10] Mag6.1 NORTHERN ITALY
May 20 2012 03:02:48UTC 44.89N 11.18E [Depth 02] Mag5.2 NORTHERN ITALY
May 20 2012 03:18:03UTC 44.83N 11.44E [Depth 10] Mag5.2 NORTHERN ITALY
[With 120 aftershocks on May 20 / May 21, 2012]
May 29 2012 07:00:03UTC 44.89N 11.07E [Depth 05] Mag5.8 NORTHERN ITALY
May 29 2012 10:55:56UTC 44.90N 10.99E [Depth 02] Mag5.5 NORTHERN ITALY
May 29 2012 11:00:24UTC 44.91N 11.02E [Depth 10] Mag5.0 NORTHERN ITALY
[With 800 aftershocks in Emilia-Romagna on May 29, 2012]
I don't think that when observing the extreme pattern of May, 2012 aftershocks, that one can simply point to one issue and blame that one issue for what is happening in Northern Italy.
Understanding The Po Valley
Northern Italy's Po Valley aquifer is located in thick clay sands, with mud volcanoes, where there are various depths of groundwater, from shallow to extremely deep, across the whole valley basin - leading down to the Adriatic Sea.
The natural forces that make the Po Valley so rich and productive for humans, are the forces that make it so dangerous. It is not enough to speculate what can cause the series of earthquakes shaking this region in 2012. You have to take time, do serious research and find out .. and begin to understand the Planet you live on.
The complex liquids and gasses lubricating the major fractures crossing this area of Northern Italy are under pressure from many sources. There are the gravitational forces, strongly affected by water and the movement of underground water - the Sun and the Moon.
The rapid extraction of shallow and deep groundwater (pumping it out for industrial, agricultural and human needs) is playing a part in the increasing subsidence rate of the basin. Add to that the deep oil fields and the gas bearing fields.
Over hundreds of years, until this current time (where we now extract more resources faster), human activity has removed underground water at ever increasing rates. The Earth is going to correct that in order to maintain balance and equilibrium.
In my imagination, the necessary underground liquid/fluid resources are not as effective at cushioning and lubricating the tectonic fractures during times of gravitational stress collisions. People don't understand that the Planet / the landmass floats on a series of layers including water, oil and gas.
I guess when people observe earthquake lights in the skies, before a major quake, this is the prior release of deep underground methane .. one of the forces that also lubricates the strata of underground fractures. I don't know, that is just my imagination. That the land is a cushioned multi-layer strata of many elements that together create and sustain life on Earth.
At 02:03 UTC on May 20, 2012 - a day before the May 21 Solar Eclipse, a shallow 6.1 earthquake shook a wide area close to Parma, Northern Italy.
On September 8, 2011 - a few days before the September 11 Full Moon - a 3.7Mag earthquake was followed by a 48 hour swarm of earth tremors.
September 10, 2011 - Parma, Italy [approaching Full Moon] Mysterious Earthquake Swarms Near Parma Italy
According to historical Eclipse data NASA, an Annular Solar Eclipse took place on November 4, 1570 AD. On November 17, 1570 a Magnitude 5.5 earthquake shook Ferrara, Northern Italy (Po Valley).
Earthquake lights were seen above the city on November 15, 1570, the night before the first quake. After the initial shocks, an earthquake swarm shook the area with over two thousand aftershocks between November, 1570 until February, 1571. The release of methane, before the stress of the quakes.
May 20 2012 02:03:53UTC 44.90N 11.24E [Depth 10] Mag6.1 NORTHERN ITALY
May 20 2012 03:02:48UTC 44.89N 11.18E [Depth 02] Mag5.2 NORTHERN ITALY
May 20 2012 03:18:03UTC 44.83N 11.44E [Depth 10] Mag5.2 NORTHERN ITALY
[With 120 aftershocks on May 20 / May 21, 2012]
May 29 2012 07:00:03UTC 44.89N 11.07E [Depth 05] Mag5.8 NORTHERN ITALY
May 29 2012 10:55:56UTC 44.90N 10.99E [Depth 02] Mag5.5 NORTHERN ITALY
May 29 2012 11:00:24UTC 44.91N 11.02E [Depth 10] Mag5.0 NORTHERN ITALY
[With 800 aftershocks in Emilia-Romagna on May 29, 2012]
I don't think that when observing the extreme pattern of May, 2012 aftershocks, that one can simply point to one issue and blame that one issue for what is happening in Northern Italy.
Understanding The Po Valley
Northern Italy's Po Valley aquifer is located in thick clay sands, with mud volcanoes, where there are various depths of groundwater, from shallow to extremely deep, across the whole valley basin - leading down to the Adriatic Sea.
The natural forces that make the Po Valley so rich and productive for humans, are the forces that make it so dangerous. It is not enough to speculate what can cause the series of earthquakes shaking this region in 2012. You have to take time, do serious research and find out .. and begin to understand the Planet you live on.
The complex liquids and gasses lubricating the major fractures crossing this area of Northern Italy are under pressure from many sources. There are the gravitational forces, strongly affected by water and the movement of underground water - the Sun and the Moon.
The rapid extraction of shallow and deep groundwater (pumping it out for industrial, agricultural and human needs) is playing a part in the increasing subsidence rate of the basin. Add to that the deep oil fields and the gas bearing fields.
Over hundreds of years, until this current time (where we now extract more resources faster), human activity has removed underground water at ever increasing rates. The Earth is going to correct that in order to maintain balance and equilibrium.
In my imagination, the necessary underground liquid/fluid resources are not as effective at cushioning and lubricating the tectonic fractures during times of gravitational stress collisions. People don't understand that the Planet / the landmass floats on a series of layers including water, oil and gas.
I guess when people observe earthquake lights in the skies, before a major quake, this is the prior release of deep underground methane .. one of the forces that also lubricates the strata of underground fractures. I don't know, that is just my imagination. That the land is a cushioned multi-layer strata of many elements that together create and sustain life on Earth.