TITLE: GCN CIRCULAR NUMBER: 30822 SUBJECT: GECAM observations of bursts from SGR J1935+2154 (2021-09-11T07 to 2021-09-12T08) DATE: 21/09/12 14:39:57 GMT FROM: Wangchen Xue at IHEP W. C. Xue, S. L. Xiong, C. Cai, Y. Huang, Z. W. Guo, C. Y. Li, X. B. Li, J. C. Liu, X. Y. Song, C. W. Wang, P. Wang, S. L. Xie, S. Xiao, 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 2021-09-11T07 to 2021-09-12T08. Here is the list of these bursts: Trigger Time (UTC) 2021-09-11T07:15:04.000 2021-09-11T16:35:46.500 2021-09-11T16:36:57.900 2021-09-11T16:38:01.050 2021-09-11T16:39:21.000 2021-09-11T16:50:03.850 2021-09-11T17:00:41.900 2021-09-11T17:01:09.800 2021-09-11T17:01:59.550 2021-09-11T17:04:29.800 2021-09-11T17:10:48.750 2021-09-11T18:02:13.500 2021-09-11T18:04:46.350 2021-09-11T18:54:36.050 2021-09-11T19:43:29.000 2021-09-11T19:46:50.050 2021-09-11T20:13:40.550 2021-09-11T20:22:59.050 2021-09-11T20:33:14.550 2021-09-11T21:07:28.350 2021-09-11T22:51:41.600 2021-09-12T00:34:37.450 2021-09-12T00:45:49.400 2021-09-12T05:14:07.950 2021-09-12T06:51:13.700 2021-09-12T07:28:07.500 Locations of all these bursts are consistent with SGR J1935+2154. Please note that all GECAM results here are preliminary.