Which is more likely, the tsunami or the Shanghai earthquake?

Shanghai earthquake is more likely. Shanghai is located in the eastern coastal area of China, adjacent to the ocean, so it will be affected by the tsunami and earthquake. According to the past historical records and geographical location, there is a high possibility of an earthquake in Shanghai. Earthquake is a phenomenon of earth surface vibration caused by crustal plate activity, and its occurrence requires specific crustal structural conditions. As a whole, China is located in several seismic zones, and there is a potential risk of seismic activity. In the past history, there have been some small-scale earthquake events in Shanghai and its surrounding areas. In contrast, the possibility of a tsunami in Shanghai is low. Tsunami is caused by earthquake, volcanic eruption or other submarine geological activities, which will generate huge energy and spread in the ocean to form waves. Shanghai is close to the ocean and far from the main tsunami source area, and the land around Shanghai is flat, which has relatively little impact on the tsunami.