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 <xuewc@ihep.ac.cn> 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.