Pre-seismic anomalies and co-seismic gravity changes of 2011 Tohoku-Oki earthquake ( M w 9.0) detected by superconducting gravity data
DONG Jie, ZHANG Zeyu, WEN Hanjiang, SUN Wenke
Acta Geodaetica et Cartographica Sinica . 2022, (1): 63 -70 .  DOI: 10.11947/j.AGCS.2022.20210014