1Multiple magnitudes and their clevernessLiu RuifengReview453-4632Scientific agenda and advances in seismic event discrimination research at the CTBT Science and Technology ConferenceHou Xiaolin, Bian Yinju, Jiang Changsheng, Ren Mengyi, Wang TingtingReview464-4723The earthquake monitoring system in the South China Sea Tsunami Advisory CenterXu Zhiguo, Shi Jianyu, Li Hongwei, Wang ZongchenArticles473-4814Study on co-seismic deformation wave characteristics of crustal deformation observation records in Ankang areaZhang Xuejuan, Zhang Chuangjun, Wang Yueming, Shao Ruotong, Gu YunheArticles487-4945Communication strategy of earthquake prevention and disaster reduction under the background of 5G technologyQuan Tenglong, Zhang Huifeng, Li Zhiheng, Chen QingArticles495-500