[In English] Information about System Maintenance July 1, 2020 Due to system maintenance, the following websites will not be updated from Jun. 29, 2020 to Jul. 10, 2020. - Daily spectral plot - Background Noise in Continuous Waveform Data * This schedule may be revised without additional announcements.

▶ Hi-net top page   ▶ K-NET/KiK-net top page   ▶ V-net top page (in Japanese)    A question please click here. Broadband Seismograph Network Laboratory, Center for Earthquake, Tsunami and Volcano,Observation Research, National Research Institute for Earth Science and Disaster Resilience. 3-1 Tennodai, Tsukuba City, Ibaraki Prefecture, 305-0006, JAPAN Copyright © National Research Institute for Earth Science and Disaster Resilience, All rights Reserved.