USCIS has just issued an advisory for Japanese and other foreign
nationals from the Pacific region who are currently stranded in the
United States due to the recent natural disasters. According to USCIS,
individuals who have exceeded or are about to exceed their authorized
stay in the United States may be able to remain in the U.S. for an
additional 30 days.
People traveling under the Visa Waiver Program: If you are at an
airport, USCIS notes you should contact a U.S. Customs and Border
Protection office at the airport. If you are not at an airport, you
should visit a local USCIS office.
People traveling under a nonimmigrant visa: You should visit a local
USCIS office. Please make sure to bring your passport, evidence that
you are stranded (e.g., your itinerary for your cancelled flight home)
and your I-94 departure record.