2nd large earthquake in week hits off Oregon coast

COOS BAY, Ore. (AP) — An underwater earthquake with an initial 5.9 magnitude has struck off the southern Oregon coast, the second such larger offshore temblor in less than a week.

The U.S. Geological Survey said Thursday that no tsunami is expected from the quake, which happened just after 8 a.m. about 180 miles from land at a depth of 7 miles (11 kilometers).

There were no reports of damage or injuries.

The larger quake happened around 8 a.m. in the same area where a 6.3-magnitude temblor struck on Aug. 29, less than a week ago. The larger quake Thursday was preceded by one around 6:25 a.m. with an initial 3.8 magnitude.

The earthquakes off the coast of Coos Bay are being caused by slipping along an offshore fault that experts say has nothing to do with the more well-known Cascadia fault, which is believed to be overdue for a major Pacific Northwest earthquake.