Fig. 2From: Mobile phone data reveals the importance of pre-disaster inter-city social ties for recovery after Hurricane MariaSpatial plots of socio-demographics of counties in Puerto Rico. a Population distribution from national census in Puerto Rico. b Median income data obtained from American Community Survey for Puerto Rico. c Housing damage rates obtained from FEMA in Puerto Rico due to Hurricane Maria. Path of Hurricane Maria is shown in gray dotted trajectoryBack to article page