Step 2. Find out how secure your place is

Because of the current COVID-19, my city suggests NOT TO GO TO THE EVACUATION SITE even if we get a mega earthquake, but to consider staying home as much as possible.

So I suggest you check whether your building is made of wood or steel.
If wood, you need to try to evacuate to outside as soon as possible, since we have seen houses and castles collapsing as if being slapped down.

If steel, then when the earthquake happens and if you were at home, try to protect yourself from possible broken glass by wrapping yourself in a blanket and go near the entrance as the entrance usually is the strongest part of the house.

I personally prepare a pair of slippers wrapped in a plastic bag by my bed because of possible glass all over my bedroom floor.

Keep your emergency backpack, a pair of running shoes and a helmet near you (entrance or bed).

Earthquake Forecast
You may also want to find out how big of an earthquake/damage you can expect where you live here (Japanese).

Find out elevation of your area (to know how much flooding/tsunami affect you may have) 
Here (Japanese)