The correct answer is

In the case of a Megathrust Earthquake Attention, protective measures are generally implemented for one week after the earthquake occurred. The period for a Megathrust Earthquake Alert is two weeks after the earthquake occurred. In areas where preemptive evacuation is necessary, it will be implemented in the first week. After that, while preemptive evacuation is coming to an end, measures for a Megathrust Earthquake Attention will continue.

Previous question

Next question