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Conectando los terremotos lentos con los terremotos enormes

Kazushige Obara¹, Aitaro Kato²

¹Earthquake Research Institute, University of Tokyo, Bunkyo, Tokyo 113-0032, Japan. obara@eri.u-tokyo.ac.jp.

Science (New York, N.Y.)

|July 16, 2016

Resumen

Los terremotos lentos, a diferencia de los tradicionales, ofrecen una visión de la física de los terremotos de megathrust. El monitoreo de estos eventos actúa como un medidor de estrés crucial, potencialmente prediciendo grandes terremotos.

Área de la Ciencia:

Sismología
Física de los terremotos

Sus antecedentes:

Los terremotos lentos exhiben diversos comportamientos de deslizamiento de fallas y radiación sísmica, distintos de los terremotos tradicionales.
Comparten mecanismos de deslizamiento y proximidad con terremotos de megatrust dentro de la zona sísmica.

Objetivo del estudio:

Para explorar los terremotos lentos como análogos para comprender la física de los terremotos de megathrust.
Investigar el potencial de los terremotos lentos como medidores de estrés sensibles en la zona sísmica.

Principales métodos:

Análisis comparativo de comportamientos de deslizamiento de fallas y patrones de radiación sísmica.
Seguimiento de la ocurrencia de terremotos lentos y su relación con los cambios de tensión.

Principales resultados:

Los terremotos lentos pueden servir como análogos valiosos para el estudio de eventos de megathrust.
Su alta sensibilidad a los cambios de tensión les permite funcionar como medidores de tensión eficaces.

Conclusiones:

Los frecuentes terremotos lentos pueden aclarar la física de los eventos de megatremotos.
El monitoreo de terremotos lentos puede mejorar la predicción de inminentes terremotos grandes mediante el seguimiento de la transferencia de estrés.

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