Earthquakes rattled the Pacific Ocean’s Ring of Fire this weekend.

One quake was off the coast of Oregon, due west of Coos Bay. The 5.6 magnitude quake occurred at 5:05 a.m. Saturday about 160 miles offshore, according to an alert from the National Earthquake Information Center.

 The West Coast and Alaska Tsunami Warning Center issued a notice that a tsunami was not expected.

At 5:42 a.m. Sunday, the center said, a 5.2 magnitude quake struck 220 miles northwest of Nome, Alaska. No tsunami was generated by that quake, either.