Recent Western earthquakes and potential tsunamis
Randy Mann.
JAKE PARRISH/Press
Several months ago, I featured an article about the recent earthquake activity in the western U.S. According to the U.S. Geological Survey, on Thursday, Dec. 5, a strong 7.0 magnitude quake was reported off the Northern California coast near Cape Mendocino and the town of Petrolia. Residents as far away as San Francisco felt the earthquake as thousands of people reported feeling a rolling motion when the quake hit that morning.
As is typical with large earthquakes, last Thursday’s event spawned numerous aftershocks. Based on data from the USGS, most were in the range of 2.5 to a high of 4.7 in magnitude. The earthquake also triggered a tsunami warning for over 5 million people in the coastal regions from southern Oregon southward to San Francisco. Fortunately, a tsunami didn’t materialize, and the warning was soon canceled.
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