Megathrust Earthquake. A megathrust earthquake occurs in subduction zones where two crustal plates are colliding. They have occurred in the Cascadia Subduction Zone in the past and scientists predict another will occur. The 2012 Chile Earthquake and the 2011 Japanese earthquakes were earthquake megathrust events.
The statute defines an âunaccompanied alien childâ as a child under the age of 18 with no lawful status in the United States, and âwith respect to whom (i) there is no parent or legal guardian in the United States; or (ii) no parent or legal guardian in the United
Children ages 5-15 (as of the travel date) who travel without a parent, a legal guardian or someone who is at least 18 years old are considered unaccompanied minors and are required to use our unaccompanied minor service. 1  These young travelers are subject to certain travel guidelines and requirements, including: