Story highlights No tsunami warnings are issued

The quake is felt in neighboring Guam

(CNN) A 7.7-magnitude earthquake struck the Mariana Islands in the Pacific Ocean early Saturday.

The quake occurred at a depth of 117 miles (212 km) some 19 miles south-southwest of the uninhabited island of Agrihan in the U.S. territory, the U.S. Geological Survey said.

M7.7 - 31km SSW of Agrihan, Northern Mariana Islands https://t.co/pgTuMjC3Wu Pager indicates minimal damage. Did You Feel It? — USGS_Seismic (@usgs_seismic) July 29, 2016

No tsunami warning has been issued, according to the National Tsunami Warning Center.

Spokesman Paul Whitmore said a barely noticeable wave of about two inches was recorded in Saipan, the largest of the islands.

The Commonwealth of the Northern Mariana Islands lies about 5,800 miles south-southwest of California's Pacific shore.