Quakes are increasing, but scientists aren't sure what it means

Quakes are increasing, but scientists aren't sure what it means
No, it's not your imagination: The Los Angeles area is feeling more earthquakes this year. After a relatively quiet period of seismic activity in the Los Angeles area, the last five months have been marked by five earthquakes larger than 4.0. That hasn't occurred since 1994, the year of the destructive Northridge earthquake that produced 53 such temblors. 

Questions persist about Yellowstone eruption: Is US evacuation plan in place?
The earth around the Yellowstone supervolcano is increasingly becoming seismically active. Some scientists say it is not a matter of “if” the Yellowstone supervolcano will erupt, but rather “when” it will erupt.