To see all filters that are active in your alerts table, click 
to open the Active Filters slider.
In the Active Filters dialog, you can use the toggle to see My Alerts (alerts assigned to you) or All Alerts in the alerts table. In the federated view, you can also toggle to see My Org Alerts (alerts assigned to your organization) or All Orgs Alerts (alerts assigned to all organizations you manage).
You can filter alerts based on a queue by selecting a queue from the Manage Queues drop-down menu.
If you have selected other filters in the alerts table, they will also appear in the Active Filters dialog.
To clear a filter, click the red x in the upper-right corner of that filter. To clear all filters, click Clear All Filters.