Home seismometer for earthquake early warning

被引：34

作者：

Horiuchi, Shigeki ^{[1
]}

Horiuchi, Yuko ^{[2
]}

Yamamoto, Shunroku ^{[5
]}

Nakamura, Hiromitsu ^{[1
]}

Wu, Changjiang ^{[1
]}

Rydelek, Paul A. ^{[4
]}

Kachi, Masaaki ^{[3
]}

机构：

[1] Natl Res Inst Earth Sci & Disaster Prevent, Tsukuba, Ibaraki 3050006, Japan

[2] Home Seismometer Corp, Tsukuba, Ibaraki 3050011, Japan

[3] A2 Corp, Tokyo 1420052, Japan

[4] Korea Ocean Res & Dev Inst, Ansan 426744, Gyeonggi Do, South Korea

[5] Railway Tech Res Inst, Kokubunji, Tokyo 1858540, Japan

来源：

GEOPHYSICAL RESEARCH LETTERS | 2009年 / 36卷

关键词：

D O I：

10.1029/2008GL036572

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The Japan Meteorological Agency (JMA) has started the practical service of Earthquake Early Warning (EEW) and a very dense deployment of receiving units is expected in the near future. The receiving/alarm unit of an EEW system is equipped with a CPU and memory and is on-line via the internet. By adding an inexpensive seismometer and A/D converter, this unit is transformed into a real-time seismic observatory, which we are calling a home seismometer. If the home seismometer is incorporated in the standard receiving unit of EEW, then the number of seismic observatories will be drastically increased. Since the background noise inside a house caused by human activity may be very large, we have developed specialized software for on-site warning using the home seismometer. We tested our software and found that our algorithm can correctly distinguish between noise and earthquakes for nearly all the events. Citation: Horiuchi, S., Y. Horiuchi, S. Yamamoto, H. Nakamura, C. Wu, P. A. Rydelek, and M. Kachi (2009), Home seismometer for earthquake early warning, Geophys. Res. Lett., 36, L00B04, doi: 10.1029/2008GL036572.

引用

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