Home International Today’s earthquake in Puebla occurred within 10 kilometers of the epicenter of the 2017 earthquake, so why wasn’t it so destructive?

Today’s earthquake in Puebla occurred within 10 kilometers of the epicenter of the 2017 earthquake, so why wasn’t it so destructive?

by Trend News
3 minutes read


A new day in the Mexican calendar returns to marking life. Last December 7, the city of Mexico was struck by an earthquake of magnitude 5.7 with an epicenter located in the state border between the states of Puebla, Guerrero and Morelos, in 16 km west of Chiautla de Tapia.

El Servicio Sismológico Nacional (SSN), Through a press release, he offered more details about the phenomenon that caused panic in less than 3 states of the Republic. The annex reported that the earthquake that occurred at 2.03pm was felt strongly in the center of the country. The coordinates of the epicenter are 18.29 latitude N and 98.76 longitude W and the depth is 48 km.

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VIDEO: Current earthquake on CDMX causes derrumbe in the Cerro de las Minas, Iztapalapa

Why did the earthquake of December 7th feel so strong on the CDMX?

Mexico is located in an area of ​​high seismicity due to the interaction of 5 technical plates: The North American coast, the Cocos coast, the Pacific coast, the Rivera coast and the Caribbean coast.

Therefore it was not so destructive

When an earthquake of considerable magnitude occurs, the rockfalls that are located in the area of ​​the rupture are of an advantage, which generates a series of thunderstorms in the area that receives the number of replicas. The number of replicas can vary from as many as hundreds of events in the next few days or weeks of the main event. For these events the occurrence or presence of replicas is not necessarily necessary, it will depend on the characteristics of the region in which the earthquake occurred.

From information with information from the SSN, the movement of these children it had a normal flaw with features of one intraplaca earthquake. In this type of geological failure, the technical block is lower than the ground block.

“When the tectonic plates move or shock within them, they produce friction and release energy that propagates across the Earth in the form of seismic waves (deformations of the ground). This is a multi-plate earthquake”, can be read on the SkyAlert page

The earthquake traps, on the other hand, it does not occur where the technical earthquakes in movement, even those of these unions, occur in any place with a geological fault. In general, they have a lower magnitude than earthquakes where there is contact between two earthquakes.

Today’s earthquake occurred on the same site as in 2017

Intra-substantial earthquakes are less common than they are, however, no less of a concern. If it is a process of internal deformation of a tectonic plate, the earthquake can produce large amounts of damage and be potentially catastrophic if it is of large magnitude and has a very superficial origin.

This was the case of the earthquake of 19 September 2017 with its epicenter in Chiatula de Tapia, Puebla. This earthquake, whose magnitude was 7.1, is classified as an intra-plateau earthquake in an area known as “flexion” or where the Cocos plate is “double”, covering the surface, due to the effect of its own weight.

With information from SkyAlert and SSN

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