I went to the booking website and went all the way through to the point where you can get insurance or not and clicked on the link for insurance information. This policy is underwritten through Insure America. It states Natual Disaster as a flood, hurricane, tornado, earthquake, or blizzard that is due to natural causes. Under the Section Trip Cancellation and Interruption it states:
The insurer will pay this benefit up to the Maximum Limit shown on the Schedule of Benefits if an Insured is precented from taking the Trip due to any of the following unforeseen reasons: a Sickness, Injury, or death of an Insured, Immediate Family member, Traveling companion or Business Partner, Injury or Sickness must be so disabling as to reasonable cause a Trip to be canceled or interrupted; b) Inclement Weather or the occurence of a NATUAL DISASTER that causes complete cessation of travel services at the point of departure or destination.
Trip Interruption Benefits: The Insurer will pay this benefit up to the Maximum Limit shown on the Schedule of Benefits for Trips that have been interrupted due to the reasons shown at the beginning of this section. If he insured is unable to continue the trip due to any of the covered reasons, the Company will reimburse the Insured for the 1)unused, non-refundable travel arrangements prepaid to the Travel Supplier.
This sounds to me to be only the travel portion of the trip. There is an 800 # for more details 1-800-826-3899.
Hope this helps