6.4 Magnitude Earthquake Strikes Off the Coast of Tsuruoka, Japan; Tsunami Alert Issued

According to USGS, a 6.4 magnitude earthquake has occurred 20 miles east-northeast of Tsuruoka, Yamagata, Japan.

The earthquake is reported to have occurred at a depth of 10 miles on Tuesday, June 18, at 10:22 pm local time. GDACS has issued a green alert for 2,250,000 people within 62 miles