Definition of Replica (Seismology)

Some words have a meaning in language colloquial and, in parallel, another meaning in scientific terminology. This is what happens with the term replica. In an ordinary conversation, a reply is a reply to a speech and therefore it is spoken of right of replica. In contrast, in seismology, a replica is a movement seismic produced by another previous seismic movement.

How is a replica produced?

A first seismic movement generates an alteration of the terrain and this change of structure produces, in turn, a new movement, the replica. It should be noted that the replica is not necessarily less than the earthquake above and, indeed, sometimes the force of the replica may be higher.

Earthquakes and Aftershocks

The place on the earth's surface where a earthquake it is known as the epicenter. At this point it begins to release Energy accumulated for a long time and finally that energy overflows and produces the displacement vertical and horizontal terrain. These movements sometimes affect the surface of the seabed and when this occurs a tsunami occurs. Typically, earthquake aftershocks are located within the rupture area.

The origin of earthquakes and seismology

An earthquake is a vibration of the ground. This is produced by the release of energy at a certain point. The energy that is released is transmitted in the form of waves and in this way the rocks vibrate and the ground cracks. The place where it begins is the hypocenter or focus and the epicenter is the area that is on the surface of said focus.

Seismology is the discipline scientist who studies this type of phenomena. According to the theories used by seismologists, earthquakes are formed by the elastic rebound that occurs in an area, the fault. Thus, the tectonic forces inside the earth exert a force on the faults and these end up fracturing on their surface. This break creates a landslide. Faults are classified according to their movement, so they can be vertical, horizontal, or oblique.

Currently seismologists are trying to create theoretical prediction models so that preventive measures can be taken in order to minimize the impact of earthquakes. Because of this, seismologists have to collaborate with other professionals, such as architects, geologists, geophysicists, or civil engineers.

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