earthquake swarm

Unusual swarm of more than 90 earthquakes this week off the central Oregon coast occurred in area that is active but not dangerous, experts say

December 9, 2021

By ALYSSA LUKPAT/The New York Times and LEE J. SIEGEL/YachatsNews.com Just after 5:20 a.m. Tuesday, a 4.2 magnitude earthquake struck off about 250 miles off the central Oregon coast. It was nothing groundbreaking, because quakes happen offshore all the time. An hour and a half later, another tremor rippled through the seafloor. And then another earthquake struck. And another. And

Earthquake experts believe there’s little to fear from swarm of nearly 70 quakes off the central Oregon coast

December 8, 2021

By LEE J. SIEGEL and CNN for YachatsNews.com A swarm of nearly 70 small to moderate earthquakes rattled under the seafloor 250 to 290 miles off the central Oregon coast Tuesday and Wednesday. Fifteen of them measured between magnitude 5.0 and 5.8. A few coastal residents reported feeling the largest jolts, which measured up to 5.8 in magnitude. The