Mount Rainier Earthquake Swarms Decline in Activity Even as Strongest Registered Friday

Mount Rainier earthquake swarms decline in activity even as strongest registered Friday

“Seismicity has decreased” from 30 events per hour at the peak to a few per hour as of Saturday morning, the U.S. Geological Survey said Saturday.

Canary Islands 'seismic swarm' as Tenerife records 11 earthquakes in one morning

Shallow tremors can indicate magma movement or changes in geothermal systems, sometimes serving as early warnings of eruptions.

Another small earthquake recorded in Missouri

Another small earthquake was recorded in Missouri on Saturday--the fourth in the last three days.