Current status of realtime seismic network in and around Japanese Islands Japan Agnecy for...
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![Page 1: Current status of realtime seismic network in and around Japanese Islands Japan Agnecy for Marine-Earth Science and Technology Seiji Tsuboi.](https://reader035.fdocuments.in/reader035/viewer/2022081515/5697c0091a28abf838cc769f/html5/thumbnails/1.jpg)
Current status of realtime seismic network in and around Japanese
IslandsJapan Agnecy for Marine-Earth
Science and TechnologySeiji Tsuboi
![Page 2: Current status of realtime seismic network in and around Japanese Islands Japan Agnecy for Marine-Earth Science and Technology Seiji Tsuboi.](https://reader035.fdocuments.in/reader035/viewer/2022081515/5697c0091a28abf838cc769f/html5/thumbnails/2.jpg)
Seismological stations in Japan
After 1995 Kobe earthquake, installation of stations has been accelerated.
As of 2011;・ 1235 short period 3 component seismometer・ 125 broadband 3 component seismometer・ 3721 strong motion seismometer・ 1466 GPS stationsMost of these are connected in realtime
![Page 3: Current status of realtime seismic network in and around Japanese Islands Japan Agnecy for Marine-Earth Science and Technology Seiji Tsuboi.](https://reader035.fdocuments.in/reader035/viewer/2022081515/5697c0091a28abf838cc769f/html5/thumbnails/3.jpg)
![Page 4: Current status of realtime seismic network in and around Japanese Islands Japan Agnecy for Marine-Earth Science and Technology Seiji Tsuboi.](https://reader035.fdocuments.in/reader035/viewer/2022081515/5697c0091a28abf838cc769f/html5/thumbnails/4.jpg)
![Page 5: Current status of realtime seismic network in and around Japanese Islands Japan Agnecy for Marine-Earth Science and Technology Seiji Tsuboi.](https://reader035.fdocuments.in/reader035/viewer/2022081515/5697c0091a28abf838cc769f/html5/thumbnails/5.jpg)
![Page 6: Current status of realtime seismic network in and around Japanese Islands Japan Agnecy for Marine-Earth Science and Technology Seiji Tsuboi.](https://reader035.fdocuments.in/reader035/viewer/2022081515/5697c0091a28abf838cc769f/html5/thumbnails/6.jpg)
![Page 7: Current status of realtime seismic network in and around Japanese Islands Japan Agnecy for Marine-Earth Science and Technology Seiji Tsuboi.](https://reader035.fdocuments.in/reader035/viewer/2022081515/5697c0091a28abf838cc769f/html5/thumbnails/7.jpg)
Realtime data transmission through IP-VPN
100Hz sampling rate digital seismograms from more than 800 seismic stations are transmitted in realtime
Win format is usedDuality of transmission is secured (UDP and IP)Delay time should be less than 1 second and
quality should be 99%.Data are used to locate earthquake hypocenter
and issue earthquake early warnings
![Page 8: Current status of realtime seismic network in and around Japanese Islands Japan Agnecy for Marine-Earth Science and Technology Seiji Tsuboi.](https://reader035.fdocuments.in/reader035/viewer/2022081515/5697c0091a28abf838cc769f/html5/thumbnails/8.jpg)
![Page 9: Current status of realtime seismic network in and around Japanese Islands Japan Agnecy for Marine-Earth Science and Technology Seiji Tsuboi.](https://reader035.fdocuments.in/reader035/viewer/2022081515/5697c0091a28abf838cc769f/html5/thumbnails/9.jpg)
Earthquake Early Warning by JMA
![Page 10: Current status of realtime seismic network in and around Japanese Islands Japan Agnecy for Marine-Earth Science and Technology Seiji Tsuboi.](https://reader035.fdocuments.in/reader035/viewer/2022081515/5697c0091a28abf838cc769f/html5/thumbnails/10.jpg)
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![Page 12: Current status of realtime seismic network in and around Japanese Islands Japan Agnecy for Marine-Earth Science and Technology Seiji Tsuboi.](https://reader035.fdocuments.in/reader035/viewer/2022081515/5697c0091a28abf838cc769f/html5/thumbnails/12.jpg)
![Page 13: Current status of realtime seismic network in and around Japanese Islands Japan Agnecy for Marine-Earth Science and Technology Seiji Tsuboi.](https://reader035.fdocuments.in/reader035/viewer/2022081515/5697c0091a28abf838cc769f/html5/thumbnails/13.jpg)
![Page 14: Current status of realtime seismic network in and around Japanese Islands Japan Agnecy for Marine-Earth Science and Technology Seiji Tsuboi.](https://reader035.fdocuments.in/reader035/viewer/2022081515/5697c0091a28abf838cc769f/html5/thumbnails/14.jpg)
![Page 15: Current status of realtime seismic network in and around Japanese Islands Japan Agnecy for Marine-Earth Science and Technology Seiji Tsuboi.](https://reader035.fdocuments.in/reader035/viewer/2022081515/5697c0091a28abf838cc769f/html5/thumbnails/15.jpg)
20 ocean bottom observatories will be installed in future To-Nankai earthquake rupture area.Type of instruments:■Strong Motion Seismometer : Metrozet TSA-100S ■Broadband seismometer : Guralp CMG-3TRH ■Hydrophone : High Tech HTI-99-DY■Differential Pressure Gauge : Nichiyu Giken Kogyo MA-567000 ■Quartz Crystal Pressure Gauge : Paro Scientific 8B7000-2-005 ■Precision Thermometer : Nichiyu Giken Kogyo MA-565-2 series
![Page 16: Current status of realtime seismic network in and around Japanese Islands Japan Agnecy for Marine-Earth Science and Technology Seiji Tsuboi.](https://reader035.fdocuments.in/reader035/viewer/2022081515/5697c0091a28abf838cc769f/html5/thumbnails/16.jpg)
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![Page 18: Current status of realtime seismic network in and around Japanese Islands Japan Agnecy for Marine-Earth Science and Technology Seiji Tsuboi.](https://reader035.fdocuments.in/reader035/viewer/2022081515/5697c0091a28abf838cc769f/html5/thumbnails/18.jpg)
![Page 19: Current status of realtime seismic network in and around Japanese Islands Japan Agnecy for Marine-Earth Science and Technology Seiji Tsuboi.](https://reader035.fdocuments.in/reader035/viewer/2022081515/5697c0091a28abf838cc769f/html5/thumbnails/19.jpg)
Peak Performance/CPU
102.4Gflops Total number of CPU
1280
Peak Performance/PN
819.2Gflops Total number of PN
160
Shared memory/PN
128Gbytes Total peak performance
131Tflops
CPUs/PN 8 Total main memory
20Tbytes
Earth Simultor 2
The new Earth Simulator system, which began operation in March 2009, achieved sustained performance of 122.4 TFLOPS and computing efficiency of 93.38% on the LINPACK Benchmark
![Page 20: Current status of realtime seismic network in and around Japanese Islands Japan Agnecy for Marine-Earth Science and Technology Seiji Tsuboi.](https://reader035.fdocuments.in/reader035/viewer/2022081515/5697c0091a28abf838cc769f/html5/thumbnails/20.jpg)
Next Generation Supercomputer Project
• The system will use scalar CPUs (SPARC64™ VIIIfx, 8 cores, 128 gigaflops) manufactured with 45nm process technology.
• The network between the computing nodes will consist of a direct-connection network.
• With its water cooling system, the supercomputer will maintain a low temperature in the CPU and other LSIs, minimizing the failure rate and reducing power consumption.
• Max. performance 10 Petaflops• Completion planned for 2012
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![Page 24: Current status of realtime seismic network in and around Japanese Islands Japan Agnecy for Marine-Earth Science and Technology Seiji Tsuboi.](https://reader035.fdocuments.in/reader035/viewer/2022081515/5697c0091a28abf838cc769f/html5/thumbnails/24.jpg)
![Page 25: Current status of realtime seismic network in and around Japanese Islands Japan Agnecy for Marine-Earth Science and Technology Seiji Tsuboi.](https://reader035.fdocuments.in/reader035/viewer/2022081515/5697c0091a28abf838cc769f/html5/thumbnails/25.jpg)
Next Generation Supercomputer Project
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High precision simulation of earthquake and tsunamis
![Page 27: Current status of realtime seismic network in and around Japanese Islands Japan Agnecy for Marine-Earth Science and Technology Seiji Tsuboi.](https://reader035.fdocuments.in/reader035/viewer/2022081515/5697c0091a28abf838cc769f/html5/thumbnails/27.jpg)
Simulation of strong ground motion
![Page 28: Current status of realtime seismic network in and around Japanese Islands Japan Agnecy for Marine-Earth Science and Technology Seiji Tsuboi.](https://reader035.fdocuments.in/reader035/viewer/2022081515/5697c0091a28abf838cc769f/html5/thumbnails/28.jpg)
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Simulation of tsunamis
![Page 30: Current status of realtime seismic network in and around Japanese Islands Japan Agnecy for Marine-Earth Science and Technology Seiji Tsuboi.](https://reader035.fdocuments.in/reader035/viewer/2022081515/5697c0091a28abf838cc769f/html5/thumbnails/30.jpg)
Simuation of seismic hazard in the cities