I think your are refering to a SOC

It is impractical to monitor and keep track of multiple firewalls if they are forwarding logs to the logging service based on their visibility or lack thereof on Logs and then verify the forwarding status on the firewalls using the show logging-status command.

You can use SIEM or check the dashboard manually.

The actual reading can be seen in the management portal's dashboard, but the specific alarm and email notification for the ping error is not possible.

establish an SOC for centralized monitoring of events

If you want automated, please consider a SIEM.

Please see knowledge base about logs and how to send it via email.

It is impractical to monitor and track several firewalls if they are delivering logs to the logging service based on their visibility (or lack thereof) on Logs.

You can choose from a Syslog, SNMP or SIEM.

No you can't configure to email the notification.

There are basic logging of alerts in NGAF.