On Sunday afternoon, January 17, 2021, a swarm of small earthquakes started rattling the south side of Mount Hood with several dozen small quakes happening withing a few hours.
The swarm has yet slowed down and stopped on January 20, 2021.
The figure below summarizes the timeline of earthquakes that occurred off-summit (i.e. not centered under the volcano, but within 2.5 km of it).
During the time period in the figure (1980-2017), occasional earthquakes have occurred beneath the summit as well, but most of the seismic action in recent decades has taken place in swarms near or on faults close to the volcano.
Today’s swarm is also located close to the Twin Lakes Fault. But this is not the only fault around the volcano. Back in 2019 a new dangerous seismic line was discovered in the vicinity of the stratovolcano in Oregon.
CVO recently installed three more seismic stations near Mt. Hood that we can now use to better constrain exactly where these small earthquakes occur.
The figure below is a screenshot on one of Jan 17th little earthquakes on recordings from the three new stations.
Each station measures the shaking in three directions, up-down (Z), north-south (N), and east-west (E).
Scientists at the Cascades Volcano Observatory (CVO) aren’t too worried about an impending volcanic eruption because similar swarms of small tectonic, not volcanic, earthquakes have happened in the past in this area.
By the way you can download a new documentary film about Cascadia Below… It’s really worth your money! (click on the picture below).
Of course, if the volcano ever does wake up and causes a different kind of seismicity, these new stations will help us detect that as well! More earthquake news on Strange Sounds and Steve Quayle. [PNSN]
MT.HOOD will be spectacular,AMERICAS DADDY..THE SON OF PERDITION…STOLE 350 NUCLEAR WEAPONS FROM THE US AIR FORCE,and HE never gave them back,BUT he did put FOUR OF THEM ON MT.HOODS CALDARA,it should be a sight to see when he sets them off,OH and all the other west coast mountains too…OBAMA planted them all over america..IT’LL be like the fourth of JULY…
When the left coast gets their cataclysmic event, I may get an ocean view from the mountains?
According to Edgar Cayce’s predictions.
Not sure I believe it will happen in my lifetime?
That explains the rise of godless heathen perverts.
Two minute read, but packed with good info.
I sent a chunk of money up to my old relatives up in Oregon last week. In case of emergency. If some cataclysmic event occurs, then ATM and banks will be closed. Better to make sure all loved ones have disposable cash on hand.