New Tools for Rapid Assessment of Felt Reports and a Case Study on Sakhalin Island

IF 0.3 Q4 GEOCHEMISTRY & GEOPHYSICS Seismic Instruments Pub Date : 2023-01-10 DOI:10.3103/S0747923922060081

A. V. Konovalov, A. A. Stepnov, E. S. Bogdanov, R. Yu. Dmitrienko, I. D. Orlin, A. S. Sychev, A. V. Gavrilov, K. A. Manaychev, A. T. Tsoy, Yu. A. Stepnova

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引用次数: 1

Abstract

Automated assessment of felt reports in accordance with the regionalized DYFI questionaries were implemented on mobile applications and messengers of the seismological service eqalert.ru. The new tool was tested on Sakhalin Island, which is considered as an active crustal region. We have developed a regression relationship between the peak ground acceleration and the community internet intensity for the studied area. The community internet intensity calculated from a large number of felt reports has a variance comparable to those given from a prediction equation of the physically based ground motion parameters. The given approach is considered as a state-of-art tool for the rapid collecting and assessment of macroseismic data. It may be used both with the weighted average method for generating high-quality shaking maps immediately following the felt earthquake. It is also a good way to involve the population in ground shaking measures.

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快速评估感觉报告的新工具和库页岛案例研究

根据地区化的DYFI调查问卷，在移动应用程序和地震服务equalert .ru的信使上实现了对感觉报告的自动评估。新工具在库页岛进行了测试，库页岛被认为是一个活跃的地壳区域。建立了研究区峰值地面加速度与社区互联网强度之间的回归关系。从大量的感觉报告中计算出的社区互联网强度与基于物理的地面运动参数的预测方程所给出的方差相当。该方法被认为是快速收集和评估宏观地震数据的最先进的工具。它可以与加权平均法一起使用，在有震感的地震发生后立即生成高质量的地震图。这也是让民众参与地震动措施的好方法。

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来源期刊

Seismic Instruments GEOCHEMISTRY & GEOPHYSICS-

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44.40%

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期刊介绍： Seismic Instruments is a journal devoted to the description of geophysical instruments used in seismic research. In addition to covering the actual instruments for registering seismic waves, substantial room is devoted to solving instrumental-methodological problems of geophysical monitoring, applying various methods that are used to search for earthquake precursors, to studying earthquake nucleation processes and to monitoring natural and technogenous processes. The description of the construction, working elements, and technical characteristics of the instruments, as well as some results of implementation of the instruments and interpretation of the results are given. Attention is paid to seismic monitoring data and earthquake catalog quality Analysis.