This is a market on whether there will be an earthquake of magnitude 4.5 (Richter scale) or higher in the Conterminous U.S. between the market conception time, November 29th, 2021, 12:00 PM ET and December 31st, 2021 (11:59 PM ET), as measured by the U.S. Geological Survey. This market will resolve to “Yes”, if the list of recorded seismic activity at the resolution source (https://earthquake.usgs.gov/earthquakes/) for that period will include at least one earthquake of magnitude 4.5 or higher with its epicentre in the Conterminous U.S. and “No” otherwise. ------------------------------ The term 'Conterminous U.S.' used in this market refers to 48 lower states of The United States, excluding the maritime territory.