According to the Chengdu High-tech Disaster Mitigation Research Institute, at 8:26 today, a 4.7 magnitude earthquake occurred in Changning, Yibin, Sichuan. The mainland earthquake warning network of the Chengdu High-tech Disaster Mitigation Research Institute's warning magnitude sequence for the earthquake was 7.7, 6.4, 3.7, 4.1, and 3.9 in that order. The magnitude of the earthquake automatically converged to level 3.9 in the 17th second of the earthquake. Here are a few points: 1. The earthquake magnitude and epicenter location of the earthquake warning are inevitable, because the warning system automatically sends out information when the earthquake has just occurred, and the earthquake was not over yet; 2. The earthquake was first reported at magnitude 7.7, which was a big deviation. This is also the biggest deviation in the 15 years since the earthquake warning network of the Chengdu High-tech Disaster Mitigation Research Institute began serving society in September 2011; 3. The Chengdu High-tech Disaster Mitigation Research Institute apologizes for this big deviation. 4. The Chengdu High-tech Disaster Mitigation Research Institute will identify the cause as soon as possible, improve technology, and improve services.

According to the Chengdu High-tech Disaster Mitigation Research Institute, at 8:26 today, a 4.7 magnitude earthquake occurred in Changning, Yibin, Sichuan. The mainland earthquake warning network of the Chengdu High-tech Disaster Mitigation Research Institute's warning magnitude sequence for the earthquake was 7.7, 6.4, 3.7, 4.1, and 3.9 in that order. The magnitude of the earthquake automatically converged to level 3.9 in the 17th second of the earthquake. Here are a few points: 1. The earthquake magnitude and epicenter location of the earthquake warning are inevitable, because the warning system automatically sends out information when the earthquake has just occurred, and the earthquake was not over yet; 2. The earthquake was first reported at magnitude 7.7, which was a big deviation. This is also the biggest deviation in the 15 years since the earthquake warning network of the Chengdu High-tech Disaster Mitigation Research Institute began serving society in September 2011; 3. The Chengdu High-tech Disaster Mitigation Research Institute apologizes for this big deviation. 4. The Chengdu High-tech Disaster Mitigation Research Institute will identify the cause as soon as possible, improve technology, and improve services.