US North West Coast has Quake Swarm

The Daily Mail [UK] – Series of quakes strikes off Northwest coast; no tsunamis

SALEM, Ore. (AP) — Five earthquakes ranging in magnitude up to 5.9 have struck off the coast of the Pacific Northwest, but they weren’t strong enough to generate tsunamis, scientists said.

The earthquakes were shallow, at 6 miles deep, often a signal of a dangerous quake.

It usually takes an earthquake of magnitude 7 or better to trigger a tsunami, said geophysicist Paul Caruso of the U.S. Geological Survey.

The quakes were clustered in an area about 300 miles west of Coos Bay, Oregon, along what’s known as the Blanco Fracture Zone. . . . (more)

http://www.dailymail.co.uk/wires/ap/article-3106478/Series-quakes-strikes-Northwest-coast-no-tsunamis.html

. . . not related to Yellowstone as far as we know . . . of general interest

. . .  these 2 items from Strange Sounds are in the same category:

• Mysterious steam smelling like gas comes out of the ground near Lake Toba a supervolcano that erupted 70,000 years ago!
• Two earthquakes strike near Volcano Peak, A California dormant volcano, within 24 hours