A first near real-time seismology-based landquake monitoring system

• DOI: 10.1038/srep43510
• Publication Date: 2017-03-02T10:58:27Z
• Authors: Wei-An Chao; Yih-Min Wu; Li Zhao; Hongey Chen; Yue-Gau Chen; Jui-Ming Chang; Che-Min Lin
• Keywords: Typhoon; Multi-source; Microseism

Hazards from gravity-driven instabilities on hillslope (termed 'landquake' in this study) are an important problem facing us today. Rapid detection of landquake events is crucial for hazard mitigation and emergency response. Based the real-time broadband data Taiwan, we have developed a near monitoring system, which fully automatic process based waveform inversion that yields source information (e.g., location mechanism) identifies by examining fitness different types mechanisms. This system has been successfully tested offline using seismic records during passage 2009 Typhoon Morakot Taiwan online operation typhoon season 2015. In practice, certain levels station coverage (station gap < 180°), signal-to-noise ratio (SNR ≥ 5.0), threshold event size (volume >106 m3 area > 0.20 km2) required to ensure good performance (fitness 0.6 successful identification) can be readily implemented other places world with networks high activities.