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Observation network


Taiwan Geophysical Network for Seismology (TGNS)

After 1999 Chi-Chi earthquake, for the purpose of earthquake precursory study, in the cooperation with academia, CWB began to build and maintain the Taiwan Geophysical Network for Seismology (TGNS) to collect geophysical data.

Currently, there are four types of geophysical station arrays deployed, including 163 continuous Global Navigation Satellite System (GNSS) station, 6 Groundwater stations, 12 geomagnetic stations, and 20 geoelectric stations. Fig.1 shows the distribution of all the TGNS geophysical stations.

Fig.1: Distribution map shows the locations of the TGNS stations.