Create a database of large (M>6) earthquakes in our AOI

[scottstanie]

At Fringe, it was mentioned that EGMS pulling in a list earthquakes M>6.0 from USGS. This will be relevant to check how often this leads to a huge surface displacement (depends on depth), as well as how the algorithm can handle changing reference dates.

• GUI search (this can also be down in an API): https://earthquake.usgs.gov/earthquakes/map/?extent=-7.10089,-154.77539&extent=57.65716,-35.15625&range=search&timeZone=utc&search=%7B%22name%22:%22Search%20Results%22,%22params%22:%7B%22starttime%22:%222014-10-04%2000:00:00%22,%22endtime%22:%222023-10-11%2023:59:59%22,%22maxlatitude%22:50,%22minlatitude%22:5.966,%22maxlongitude%22:-65,%22minlongitude%22:-125,%22minmagnitude%22:6,%22orderby%22:%22time%22%7D%7D
• 75 earthquakes larger than 6 in CONUS down to panama
  • Some of these will be clustered within the same 12 day window, which would be the same DISP-relevant event