What changed on 10th March 2019? Geo-tagged twitter data

[ajgboydo]

Hi there,

I’ve been making POST requests for Twitter data up until March 2019. The data in January and February is consistently low, either 0, 5, 8 or 13 counts per hour. On the 10th March 2019 it suddenly changes to 100+ tweets per hour, which is more what I expected.

My request is this:

curl --request POST "https://api.twitter.com/1.1/tweets/search/fullarchive/DurhamFYP/counts.json" --data '{"query":"point_radius: [-1.559610 54.778690 15mi]", "fromDate":"201704010000","toDate":"201904010000","bucket":"hour"}' --header "Authorization: Bearer ##########"

Here is a graph of the last three months of data:

Can anyone tell me what changed on Twitter on 10th March?

Thanks in advance

[ajgboydo]

I can confirm that other areas in the UK have a similar issue. Geotagged tweets within London also show a sudden step change on 10th March 2019.