In the case of Puerto Rico and the U.S. Virgin Islands, the United States government has been studying the problem for years and is increasing its seismic investigations and developing tsunami warning systems.
The United States government has been studying the problem for years. This was in the case of Puerto Rico. This was in the case of the U.S. Virgin Islands. The United States government is increasing its seismic investigations. This is in the case of Puerto Rico. This is in the case of the U.S. Virgin Islands. The United States government is developing tsunami warning systems. This is in the case of Puerto Rico. This is in the case of the U.S. Virgin Islands.