Open AccessDevelopment of Application Systems for Earthquake Early Warning
Author(s) -
Yukio Fujinawa,
Yoshinori Rokugo,
Yoichi Noda,
Yoshinobu Mizui,
Masaji Kobayashi,
Etsuo Mizutani
Publication year - 2009
Publication title -
journal of disaster research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.332
H-Index - 18
eISSN - 1883-8030
pISSN - 1881-2473
DOI - 10.20965/jdr.2009.p0218
Subject(s) - earthquake warning system , warning system , earthquake casualty estimation , earthquake prediction , computer science , disaster mitigation , emergency management , earthquake scenario , computer security , seismology , environmental science , geology , seismic hazard , environmental planning , telecommunications , political science , law
In Japan, governmental organizations, non-governmental organizations, and private companies cooperated to develop the Earthquake Early Warning (EEW) system from 2003 to 2007. It is for overall use in the country to mitigate earthquake disasters. Real-time Earthquake Information Consortium (REIC) is in charge of developing the application system for EEW. All data are from the networks of the Japan Meteorological Agency (JMA) and the National Research Institute for Earth Science and Disaster Prevention (NIED). Those data are collected and analyzed in real time using the system developed by the NIED and JMA. The JMA officially issues two kinds of EEW: one for general public and one for advanced users. Once earthquakes occur, the focal parameters are calculated as quickly as possible after sufficient number of observation sites detect seismic waves, and are transmitted to the advanced users, generally within seconds. The parameters disseminated can be used by any private party or organization for their own purposes. We have developed 14 particular application systems to help with various countermeasures, including automated and/or semi-automated responses in each field. The systems are being adopted gradually for earthquake disaster mitigation.