The Earthquake only has the 1 power switch unlike other amps which have a "standby".
If you flip the front panel power switch to "OFF" position, it actually is in standby mode, you still can turn it on via 12V trigger.
To completely power off the Earthquake, you need to turn off the rear panel power breaker.
Manufacturer provide a "ON / STANDBY" switch for a reason.
Mechanical components such as switches and relays require switching operations from time to time to keep their contacts clean, while electronic components such as chips, transistors, and electrolytic capacitors can extend their service life at lower operating temperatures.
Perhaps switching all devices to standby for four days and leaving them on over the weekend is the best compromise.