A unique seven-, eight- or nine-digit number assigned to a noncitizen at the time his or her A-file is created. The 9-digit U.S. Citizenship and Immigration Services number listed on the front of Permanent Resident Cards (Form I-551) issued after May 10, 2010, is the same as the Alien Registration Number. The A-number can also be found on the back of these Permanent Resident Cards.
Strong tsunamis damage ports and harbors, as well as tourist areas, thereby damaging relief efforts and the economy of the communities. Authority: Dr. Hal Mofjeld, interview in February 25, 2005, NOAA Center for Tsunami Research; Where do tsunamis most often occur in the world? Tsunamis occur most often in the Pacific Ocean and Indonesia because the Pacific Rim bordering the Ocean has a large number of active submarine earthquake zones. However, tsunamis have also occurred recently in the Mediterranean Sea region and are expected in the Caribbean Sea as well.
Tsunamis can actually occur anywhere, but there are areas of the world where they are more likely to happen. Most Tsunamis occur around the Pacific Ocean due to high seismic activity. Japan, for example, is so prone to Tsunamis, that they even practice 'Tsunami Drills'.sunamis can actually occur anywhere, but there are areas of the world where they are more likely to happen. Most Tsunamis occur around the Pacific Ocean due to high seismic activity. Japan, for example, is so prone to Tsunamis, that they even practice 'Tsunami Drills'.