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Detección y advertencia de terremotos globales utilizando teléfonos Android

Richard M Allen1,2, Alexei Barski1, Micah Berman1

  • 1Google LLC, Mountain View, CA, USA.

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Resumen
Este resumen es generado por máquina.

Las redes de teléfonos inteligentes pueden detectar terremotos y enviar alertas a nivel mundial. Este sistema identificó con éxito numerosos eventos sísmicos y proporcionó advertencias oportunas a millones de personas, lo que demuestra una solución escalable para la alerta temprana de terremotos.

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Área de la Ciencia:

  • La geofísica
  • Sismología
  • Ciencias de la computación

Sus antecedentes:

  • Los sistemas de alerta temprana de terremotos son cruciales para mitigar las pérdidas por desastres sísmicos.
  • Muchas regiones propensas a terremotos carecen de las redes sísmicas necesarias para una alerta temprana efectiva.

Objetivo del estudio:

  • Aprovechar la red global de teléfonos inteligentes Android para la detección de terremotos y la entrega de alertas.
  • Establecer un marco de retroalimentación del usuario para la mejora del sistema.

Principales métodos:

  • Utilizó la red global de teléfonos inteligentes Android para desarrollar algoritmos de detección de terremotos.
  • Implementó un sistema de alerta que llega a 98 países para eventos sísmicos significativos (M ≥4,5).
  • Información recopilada de los usuarios sobre la recepción de la alerta en relación con el temblor percibido.

Principales resultados:

  • Detectó un promedio de 312 terremotos por mes en Türkiye (M 1.9 a M 7.8) durante 3 años.
  • Enviado aproximadamente 18 millones de alertas por mes en todo el mundo para M ≥ 4,5 terremotos.
  • El 85% de los usuarios informó que sentía temblores, con alertas recibidas antes, durante o después del temblor para el 36%, el 28% y el 23% de los usuarios, respectivamente.

Conclusiones:

  • Los algoritmos de detección de terremotos basados en teléfonos inteligentes se pueden implementar efectivamente a escala.
  • El análisis posterior de los comentarios de los usuarios permite la mejora continua del sistema.
  • La red global de teléfonos inteligentes ofrece una alternativa viable para la alerta temprana de terremotos en regiones con escasez de datos.