A shocking earthquake threatens tens of millions of lives! Should we sit and wait for death, or take a risk? A magnitude 7.9 earthquake occurred in Seattle, Washington, USA. On the same day, a magnitude 8.4 earthquake also occurred in Reed. A series of thrilling earthquakes plunged the United States into chaos. Scientist Shan speculated based on her research data that it was not an aftershock, but was caused by a series of interactions between earthquake sources. At the same time, she also inferred that a larger and higher-level earthquake would occur. However, the head of the earthquake center did not believe it. Finally, the magnitude 9.2 earthquake that broke out in San Francisco forced them to face the harsh facts. When the crust moved most violently, the underground structure of the city became extremely unstable, and large areas of landslides often occurred. Jason was ordered to go deep underground to investigate, and found that a large area of cavities had been produced in the 60-meter underground layer of the city. The entire city is in a suspended state, and once it collapses, it will be a devastating disaster. The entire United States has been mobilized to actively rescue the victims and evacuate the masses urgently. Scientists decided to detonate nuclear warheads to reduce the pressure of the earthquake. But finally a 10.5 magnitude earthquake hit the west coast of the United States and Canada, destroying the Golden Gate Bridge and causing huge waves in the Pacific Ocean that flooded Los Angeles, swallowed up trucks and chased trains... Most of the land fell into the ocean, and the situation was worsened by aftershocks and tsunamis. With less and less land, the millions of people who survived fled together. Will they be destroyed by the earthquake there?