acapshaw

Hi all, I'm trying to extract earthquake tweets from Twitter with specific long/lat coordinates thand en store into csv file.. 
However, the result returns tweets NOT specific to locaiton parameters, does anyone know why? Here is my code:

csvFile = open('seattle.csv', 'a')
csvWriter = csv.writer(csvFile)

for tweet in tweepy.Cursor(api.search,q="#earthquake",count=100,
                           location= "47.6126,-122.6222, 50mi",
                           lang="en",
                           since="2017-04-03").items():