Merge branch 'cheraw' into 'main'

Cheraw USGS rate updates

See merge request !105

stable-crust/fault/CO/Cheraw/usgs/rupture-set.json

@@ -8,7 +8,7 @@
       "value": {
         "type": "SINGLE",
         "m": 7.0,
-        "rate": 0.000176
+        "rate": 0.00020419
       }
     },
     {
@@ -16,7 +16,7 @@
       "weight": 0.5,
       "value": {
         "type": "GR",
-        "a": 2.2357,
+        "a": 2.39162,
         "b": 0.95,
         "mMin": 6.5,
         "mMax": 7.0,