(Science Global News) A swarm of earthquakes shook the Cascadia Subduction Zone off of the Oregon coast on Sunday morning shortly after 9:00 a.m., according to U.S. Geological Survey (USGS). The swarm marks the second in just a 5-day span giving fair warning to coastal residents that the Big One could hit anytime.
After a string of almost a dozen minor quakes last week, the waters off the southern Oregon coast – approximately 280 miles west of Florence, Oregon – rumbled with yet another M5.3 quake on Sunday morning, at 9:10 a.m. and was followed by a series of 4 aftershocks:
There was no tsunami alert issued, and there are only 10 reports of it being felt on land. The quake was about seven miles beneath the sea floor.
M 5.0 – 2018-07-24 12:16:34 UTC
M 4.5 – 2018-07-24 14:28:16 UTC
M 4.3 – 2018-07-24 14:35:43 UTC
M 4.2 – 2018-07-24 14:42:04 UTC
M 5.6 – 2018-07-24 14:44:56 UTC@UKEQ_Bulletin pic.twitter.com/LvDJxW9aBe
— Ditrianum (@ditrianum) July 24, 2018