2020-01-06T16:53:51.5445fbbf5d-62ab-4757-838d-dcc7455ce97c2024-06-11T19:16:03.25false{"Notes":"Dredger owned and operated by the Geological Survey of Norway. Sometimes referred to as \"FF Seisma\". Date of commission uncertain.","Call Sign":"JWOG","Commissioned":"1985","Built":"1985","Current Length":"16.8","MMSI":"257378500"}Seisma