William We seem to be experiencing an earthquake swarm centered on the central and north-eastern sections of the Futagawa fault, which has remained unruptured since the 2016 quakes. Just in case, keep your bathtub full (water lines were out of service for a week in my neighborhood back in ‘16), secure your TV and other fragile items, and make sure you have a week’s worth of food. Earthquake notifications are available here: https://www.jma.go.jp/bosai/#pattern=earthquake_volcano&area_type=offices&area_code=430000