1+1=?

AP reports:

An earthquake struck north of Boise Tuesday evening, with people across a large area reporting shaking. The U.S. Geological Survey reports the magnitude 6.5 temblor struck just before 6 p.m. It was centered 73 miles (118 kilometers) northeast of Meridian, near the rural mountain town of Stanley. [...] Dr. Lucy Jones, a seismologist at Caltech and the founder of the Dr. Lucy Jones Center for Science and Seismology, said the Idaho region has an earthquake of about this size every 30 or 40 years. The most recent one, [was] a magnitude 7.0 earthquake near Borah Peak in 1983, [...] That quake was along what scientists call a “normal fault,” with the quake causing vertical movement, she said. Tuesday’s quake appeared to be on an unmapped “strike-slip fault,” causing mostly horizontal movement along the fault line. “This is one that wasn’t obvious enough to be mapped before now,” Jones said. Unmapped faults of this size are rarer in highly populated areas like California, she said, but in sparsely populated and remote regions like central Idaho they’re less likely to cause damage and less likely to be a focus of geologists and seismologists.

All things being equal, completely normal. What is this?

6.5 quake on hitherto unknown fault line strikes to the west of Yellowstone supervolcano

That's what it is. I wonder whether news reports like this are supposed to be IQ tests or whether the journalists involved are quite unaware of the logical fallacies in their reporting.

Well, having taken a look at AP's Lisa Baumann a third possibility comes to mind: mischief.