EPSG:4686 — MAGNA-SIRGAS

GEOGCRS[
    "MAGNA-SIRGAS",
    DATUM[
        "Marco Geocentrico Nacional de Referencia",
        ELLIPSOID[
            "GRS 1980",
            6378137,
            298.257222101,
            LENGTHUNIT["metre",1,ID["EPSG",9001]],
            ID["EPSG",7019]
        ],
        ID["EPSG",6686]
    ],
    CS[ellipsoidal,2,ID["EPSG",6422]],
    AXIS["Geodetic latitude (Lat)",north],
    AXIS["Geodetic longitude (Lon)",east],
    ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],
    ID["EPSG",4686]
]

+proj=longlat +ellps=GRS80 +no_defs +type=crs

proj4.defs("EPSG:4686", "+proj=longlat +ellps=GRS80 +no_defs +type=crs");

{
  "type": "CoordinateReferenceSystem",
  "code": 4686,
  "name": "MAGNA-SIRGAS",
  "kind": "geographic 2D",
  "area": "Colombia",
  "unit": "degree (supplier to define representation)",
  "bbox": [
    -4.23,
    -84.77,
    15.51,
    -66.87
  ],
  "proj4": "+proj=longlat +ellps=GRS80 +no_defs +type=crs"
}

INSERT INTO spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext)
VALUES (4686, 'EPSG', 4686, '+proj=longlat +ellps=GRS80 +no_defs +type=crs', 'GEOGCS["MAGNA-SIRGAS",DATUM["Marco_Geocentrico_Nacional_de_Referencia",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6686"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4686"]]');

PROJECTION
  "+proj=longlat"
  "+ellps=GRS80"
  "+no_defs"
  "+type=crs"
END

4686=GEOGCS["MAGNA-SIRGAS",DATUM["Marco_Geocentrico_Nacional_de_Referencia",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6686"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4686"]]