KorbenDeck KorbenDeck:
How are they mysterious? The article doesn't explain WHY they are mysterious.
It is the San Andreas Fault, there are SUPPOSED to be tremors and earthquakes
Maybe you should read the article a little bit farther, tremors and seismic activity or earthquakes are not the same thing.
$1:
Nadeau first discovered tremors deep in the San Andreas Fault in 2005. Before that, the phenomenon was thought only to occur in Earth’s subduction zones, where one tectonic plate dives beneath another.