Overcast-gray this early Wednesday on California’s north coast — forecast calls for it to be cooler than yesterday, and right now the air feels it.

Ground shakers-swarm yesterday down in Lake County — according to the USGS, a 5.1 earthquake near Upper Lake has apparently spawned at least four smaller quakes in its wake.
Two were 3.0 or better, the other two close.
Jennifer McKnight, chef at the Boathouse Bar and Restaurant on the north shore of Clear Lake (SFGate): ‘“The equipment in here was moving. I was trying to run outside, but I couldn’t, it was too intense.”‘

A quake this size for the area is peculiar even for California — from KGO:

“This is indeed a moderate quake felt widely throughout Northern California and it is one of the largest we’ve seen in that particular area in the last 30 years, so it’s a significant event, but it’s very remote. The nearest cities that we have are Glen Haven, Lucerne and Upper Lake and these are very small communities in Northern California and therefore we’re not expecting a great deal of damage,” USGS spokesperson Dale Grant said.

Reportedly, the quake hit about 11 miles below the surface on the Bartlett Springs Fault, estimated to be as much as two miles wide to roughly 100 miles long, located just southeast of Ukiah.
So far as stated, no reports of damage or injury. Earthquake swarms are a bitch, especially with a 5.1 as the leading shaker.

In a somewhat-related development with earth movement, a new study released yesterday revealed a volcano eruption 25 years ago has masked climate-change impacts, especially in sea level rise — from Climate Central this morning:

The eruption of Mount Pinatubo in Indonesia in 1991 sent tens of millions of tons of sulphur dioxide into the stratosphere.
By reflecting heat and cooling ocean temperatures, a new study has shown how the eruption masked the worsening effects of industrial pollution on global sea levels during the two decades since.
In 1992, NASA and Japan launched satellite missions to measure sea levels.
Pouring over the data from the satellites could lead to the conclusion that global warming is causing seas to rise at a slightly slowing rate of a little more an inch every decade.
Modeling-based research published Wednesday in Scientific Reports showed the problem of rising seas is far more pressing than that, with sea level rise caused by greenhouse gas pollution continuing to accelerate.
“Pinatubo decreased the apparent starting point of sea level,” said John Fasullo, a climate scientist with the National Center for Atmospheric Research and University of Colorado who led the new study.

Shake, rattle and roll — none of it good…

(Illustration above found here).