A 5.7-magnitude earthquake struck Guam.

Image Credit: VolcanoDiscovery
A strong 5.7-magnitude earthquake struck the North Pacific Ocean, 197 km south of Tamuning-Tumon-Harmon Village, Guam at a shallow depth of 10km.
The exact magnitude, epicenter, and depth of the quake might be changed again later on as seismologists review their data and calculations, or else as other agencies issue their own reports, but it is unlikely.
The strong earthquake was felt by all the people in Guam, but is not believed to have caused damage to the infrastructure. No tsunami warning has been issued.