Puerto Rico Earthquakes 2019 - 2020
Two hurricanes, Irma and Maria, close in time, were especially damaging. At the same time, Puerto Rico phased out tax preferences (in place since the 1950s) that encouraged firms to invest heavily in Puerto Rico AND there was a steep rise in the price of oil. Puerto Rico itself does not produce petroleum but rather imports it for vehicle fuel and for electricity generation.  Unemployment is 11% - and more than  double that for people 15 to 24.  Those percentages are unsustainable.
Puerto Rico generates about 21 billion kilowatts of electricity - 94% from oil. There is a powerful need to greatly expand solar power - which would reduce oil imports and provide some jobs. In addition, solar devices can be used to provide purified water, which becomes a critical problem for Puerto Rico if the electrical grid fails. We note the efforts of Operation Aqua, WaterStep and Empowered by Light (with Sunrun). On a larger scale, Puerto Rico is an island - that means it is surrounded by water. The problem with large solar desalination facilities (as at St. Croix and St. Thomas in the U.S. Virgin islands) is that electrical power also has to be used to pump the purified water. We believe that there are 11 surface water reservoirs with capacities greater than 5,000 acre-feet and that six of these are used primarily for public water supply. As such, these need to be assessed for seismic safety. Reservoir dam ruptures are triple disasters - drinking water is lost and the resulting floods cause damage and diseases. Currently, Puerto Rico imports 100,000 barrels of oil per day and 1.3 billion cubic meters of natural gas. Our understanding is that Guayanilla Bay is the only LNG terminal, so if it were damaged by an earthquake or tsunami many in Puerto Rico would be in dire straits. We are unable to obtain current data describing how much oil is landed at Yabucoa and San Juan. However, without trucks and roads the oil and natural gas are not easily distributed. Puerto Rico has nearly 27,000 kilometers of roads - these need to be prioritized for assessment by use and by volume.
We believe that in addition to more than 120 water production facilities there are also at least 50 water treatment plants - most of these did not fare well in the wake of the hurricanes, and it is to be expected that a major earthquake would severely damage pipes as well as machinery.
We prefer to reserve comment at this time on how effective the FCC plans will be to provide universal and affordable and robust (or easily recovered / repaired) internet service. 
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 Recommendations - Utilities: Water, electricity, internet and sewage