The Japan Meteorological Agency on Tuesday issued its first special advisory for further earthquakes and tsunamis in the Hokkaido and Sanriku coastal areas following Monday’s magnitude 7.5 earthquake off the eastern coast of Aomori Prefecture.

The government advises people to be on alert for more quakes for about a week and double-check their usual quake preparations, though there is no need to stop daily activities.

Here’s what you need to know about the advisory, officially named the