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Fig. 2 | Earth, Planets and Space

Fig. 2

From: Coseismic changes in groundwater level during the 2018 Hokkaido Eastern Iburi earthquake

Fig. 2

Observed groundwater levels (black lines) in the monitored observation wells, along with residual groundwater levels (red lines) which removed effects of tidal and atmospheric components (green lines) and rainfall (blue lines) at 1-h intervals from September 2017 to December 2018. The atmospheric pressure of wells TKC and TSK are measured on the sites, and the other atmospheric pressures and rainfalls are from the Automated Meteorological Data Acquisition System (AMeDAS; Japan Meteorological Agency 2018b). The dotted line indicates the timing of the earthquake

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