TY  - JOUR
PY  - 2018//
TI  - Real-time GNSS analysis system REGARD: an overview and recent results
JO  - Journal of disaster research
A1  - Kawamoto, Satoshi
A1  - Takamatsu, Naofumi
A1  - Abe, Satoshi
A1  - Miyagawa, Kohei
A1  - Ohta, Yusaku
A1  - Todoriki, Masaru
A1  - Nishimura, Takuya
SP  - 440
EP  - 452
VL  - 13
IS  - 3
N2  - A new real-time Global Navigation Satellite System (GNSS) analysis system named REGARD has been launched to provide finite-fault models for large earthquakes with magnitudes =8 in real time. The finite-fault estimates using GNSS positioning are free from saturation problems and are very robust for modeling large earthquakes. The REGARD system processes ∼1,200 stations of GEONET, and event detection and finite-fault model inversion routines are implemented. Tests for the case of the 2011 Tohoku earthquake (Mw9.0) and a simulated Nankai Trough earthquake (Mw8.7) show that the REGARD system can provide reliable finite-fault models for large earthquakes. Furthermore, operational real-time results for the 2016 Kumamoto earthquake (Mj7.3) demonstrated the capability of this system to model inland earthquakes. These results imply the possibility of improving tsunami simulations and/or hazard information using rapid finite-fault models. Efforts to integrate real-time GNSS with current warning systems are currently being implemented around the world, and the REGARD system will join these systems in the near future.<p />  <p>Language: en</p>
LA  - en
SN  - 1881-2473
UR  - http://dx.doi.org/10.20965/jdr.2018.p0440
ID  - ref1
ER  -