The earthquake in Christchurch, NZ on the 22nd of February, 2011 was located just 4 or 5km underground. To put this in perspective, the quake in September, located near Christchurch was twice the depth, 10km below ground. So although the quake may have been 6.3 on the Richter Scale, it was a lot shallower than the one in September (7.3 on the Richter Scale), did a lot more damage and took many, many more lives. Hope this helps.
The Christchurch earthquake, which struck on February 22, 2011, was primarily a result of strike-slip movement along the fault lines in the region. This type of movement occurs when two tectonic plates slide past each other horizontally. The quake was caused by the release of stress that had accumulated along the fault, leading to significant ground shaking and damage in Christchurch and surrounding areas. The geological complexity of the region contributed to the earthquake's intensity and impact.
The 6.3-magnitude earthquake in Christchurch on Feb 22, 2011 was caused by the rupture of a previously unknown fault line located under the region, rather than the nearby major Alpine Fault. This fault line, called the Port Hills fault, produced intense ground shaking that led to significant damage in the city.
During the Christchurch earthquake in 2011, liquefaction caused significant damage to infrastructure and buildings. The ground became saturated with water, leading to the soil losing its strength and stability, which resulted in widespread subsidence and lateral spreading. This phenomenon damaged roads, foundations, and utilities, contributing to the destruction of homes and public facilities. Overall, liquefaction exacerbated the earthquake's impact, complicating recovery efforts and increasing repair costs.
A large crack in the ground is called a fault which is caused by and earthquake.
seismic waves Seismic waves are energy that travel through the earth's layers, and are caused by the release of energy from the earthquake. This release of energy causes the crust to move, rip, and tear causing a lot of damage if close to the surface.
seismic waves Seismic waves are energy that travel through the earth's layers, and are caused by the release of energy from the earthquake. This release of energy causes the crust to move, rip, and tear causing a lot of damage if close to the surface.
Ground shaking is caused by an earthquake which is two tectonic plates that rub against eachother or overlap The magnitude of most earthquakes is measured on a ricture scale the magnitude is calculated by the ampline.
ground is shaking
The plates moving under the ground and that made the earth fall apart.
The earthquake in Christchurch, NZ on the 22nd of February, 2011 was located just 4 or 5km underground. To put this in perspective, the quake in September, located near Christchurch was twice the depth, 10km below ground. So although the quake may have been 6.3 on the Richter Scale, it was a lot shallower than the one in September (7.3 on the Richter Scale), did a lot more damage and took many, many more lives. Hope this helps.
A previously unknown fault activated. Alarmingly so, for ground acceleration exceeded 2g in some sites! Have a crack at Christchurch Earthquake in wikipedia, which has a good summary of events.
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The Christchurch earthquake, which struck on February 22, 2011, was primarily a result of strike-slip movement along the fault lines in the region. This type of movement occurs when two tectonic plates slide past each other horizontally. The quake was caused by the release of stress that had accumulated along the fault, leading to significant ground shaking and damage in Christchurch and surrounding areas. The geological complexity of the region contributed to the earthquake's intensity and impact.
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The 6.3-magnitude earthquake in Christchurch on Feb 22, 2011 was caused by the rupture of a previously unknown fault line located under the region, rather than the nearby major Alpine Fault. This fault line, called the Port Hills fault, produced intense ground shaking that led to significant damage in the city.