When there are a flurry of tweets in an area, you might be more interested in who's talking than what they're saying. This recipe aggregates both user names of people tweeting and the timestamp when they tweeted.
If
New tweet by anyone in area
This Trigger fires every time anyone posts a tweet at a location you specify.
Then
Add row to spreadsheet
This action will add a single row to the bottom of the first worksheet of a spreadsheet you specify. Note: a new spreadsheet is created after 2000 rows.
Explore more great ways to automate Twitter and Google Sheets