Oregon state geologists have been watching a recent swarm of small earthquakes on Mount Hood.
The quakes started Sunday in the Government Camp area. Since then, geologists have recorded 31 tremors. The largest was a magnitude 2.3 and likely not felt by many.
Vicki McConnell is an Oregon state geologist. She says the quakes indicate earth movement along a recently discovered fault.
"What it reminds us is that area is active. What it doesn't say is, 'Oh, this is a buildup to something bigger, oh, or this is directly associated again with magma movement," she said.
She says the state is recording and tracking earthquakes in the Mount Hood area to watch for any potential hazards.
This story originally appeared on Oregon Public Broadcasting.