Turn the stove off if you are cooking. Huddle under the table to keep you safely. Do not panic and stay calm to avoid secondary disasters.
And also turn off all gas appliances including which located outdoors.
Intelligent gas meter shuts off your gas automatically in case of an earthquake above level 5.0 occurs. When the meter shuts off the gas and red light blinks, you can resume the gas by yourself.
When there are no major problems such as gas leak, open the gas meter valve and use the gas appliances.
How to restart the gas meter
If you smell gas, do not restart the gas meter and check “when you suspect gas leak”.