user: Question: What is the epicenter of the earthquake on March 2, 1825 with an Unknown intensity?
Columns: ['Date', 'Epicenter', 'Magnitude', 'Intensity', 'Casualties']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['May 1716', 'Algiers Province', 'Unknown', 'IX', '20,000 dead, thousands injured']
SQL:

assistant: SELECT "Epicenter" FROM "Table" WHERE "Intensity" = 'Unknown' AND "Date" = 'March 2, 1825';