Like forecast models that predict the weather, USGS has a forecast model for the likely hood of aftershocks. Over the next 24 hours, there could be anywhere between 10-1,000 aftershocks magnitude 3 or greater. Here is the complete forecast:USGSThey also have forecast for estimate economic losses. Right now they are estimating there is a 35% chance of 100 million to a billion in economic losses. There is a 25% chance that economic losses will be over a billion.

Source: CNN November 30, 2018 18:11 UTC