Earthquake in Costa Rica on September 5th
In the morning of September 5th 2012, an earthquake with a magnitude of 7.6 shook Costa Rica. Even in the neighboring state of Nicaragua the earthquake that took place in about 40 km depth was yet noticeable. It was caused by the subduction of the Cocos- under the Caribbeanplate. The epicenter was near the city Samara in the province of Guanacaste, that way especially the Nicoya Peninsula was affected. Despite the magnitude of the earthquake only minor property damage was caused. The situation returned to normal very quickly. About one month after this strong earthquakes more than 1800 smaller aftershocks were recorded, most of them, however, were not sensible.
Limited access to volcanic craters is recommended
Last Friday scientists of the National Seismology Network (Red Sismológica Nacional (RSN)) published a study including the recommendation to restrict access to the volcanic crater of Rincon del la Vieja and Turribal and to remains close observation because as a result of the great earthquake changes could undergo the volcanoes.
How much energy has been discharged?
The region in which the last earthquake occurred is considered a potential earthquake zone. To the question of how much accrued energy has been discharged, different opinions are presented. Many scientists estimate, however, that during the great earthquake about 40% of the energy was released. Considering that there have been already more than 1,800 aftershocks in the region, one can assume that the energy has been reduced further until now.
It is generally known that scientists can be wrong, too. After all, one has predicted the severe earthquake in Costa Rica in 1991 for Nicoya, in fact it then was in Limón.
Other consequences of the earthquake
What particularly delights tourists and beach lovers is that Costa Rica’s land mass has increased significantly due to the earthquake. For example about 60 cm at Playa San Juanillo, elsewhere it is spoken of up to 85 cm. As a result, Costa Rica’s beaches have also increased that is especially noticeable at high tide.
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