TITLE: GCN CIRCULAR NUMBER: 30869 SUBJECT: GECAM observations of a series of bursts from SGR J1935+2154 (2021-09-15T14 to 2021-09-23T14) DATE: 21/09/23 14:19:30 GMT FROM: Chenwei Wang at IHEP <cwwang@ihep.ac.cn> C. W. Wang, S. L. Xiong, Y. Huang, C. Cai, C. Y. Li, X. B. Li, J. C. Liu, X. Y. Song, P. Wang, S. L. Xie, S. Xiao, Z. W. Guo, W. C. Xue, Q. B. Yi, Y. Q. Zhang, G. Y. Zhao, X. Y. Zhao, Y. Zhao, C. Zheng, W. Chen, Y. Q. Du, D. Y. Guo, J. J. He, J. Liang, F. J. Lu, Q. Luo, X. Ma, W. X. Peng, R. Qiao, L. M. Song, J. Wang, H. Wu, P. Zhang, S. N. Zhang, X. L. Zhang, Z. Zhang, S. J. Zheng (IHEP), report on behalf of GECAM team: GECAM-B detected a series of bursts very probably from SGR J1935+2154 either by in-flight trigger or by on-ground search of the data, from 2021-09-15T14 to 2021-09-23T14(UTC). Here is the list of these bursts: Trigger Time (UTC) 2021-09-15T15:32:56.050 2021-09-17T12:52:37.800 2021-09-17T13:58:25.100 2021-09-18T22:58:52.150 2021-09-22T02:39:10.200 2021-09-22T20:12:16.500 Locations of all these bursts are consistent with SGR J1935+2154. Please note that all GECAM results here are preliminary.