The Active Volcano off the Coast of Oregon; Axial Seamount

Aloha Tim, here in Hawaii, we worry about a large 9.0 or greater earthquake from the Cascade Rise, which typically erupts once every 250 years with no smaller quakes occurring between each large quake.
Currently, the last big quake happen closer to 350 years ago, long before all these big cities from Hoover Dam, Nevada to Vancouver Island, BC, with the main concern being from San Fransisco to Vancouver, Canada.
Very much similar to the large, long quakes in 2004 and 2011, which concerns those of us emergency managers here in Honolulu. Are we going to be ready, how much reaction time do we have and how high will the tsunami wave run ups be?
I wasn’t aware of this underwater submarine volcano until this video. There has been talk recently of one of these submarine volcanos between Kauai and Oahu in the channel but no evidence since the last underwater eruption in 1956.
There is suppose to be several around the island of Maui but haven’t seen any videos about the topic in recent times. I know you did one about the two volcanoes on Oahu but I need to watch that one again to memorize details. Thanks for today’s video! Mahalo 🇺🇸

It’s the next Siletzia!

Very intereting volcano

This was so interesting! This volcano doesn’t seem to be a island forming type. Thank you for this video!

Especially the last sentence is very interesting. Bubbles of volcanic gases lower the density and may cause ships sinking in the worst case scenario.
I immediately thought about some weird incidents to ships that did sink in some parts of the oceans, the most famous for sure being the Bermuda Triangle.
Is there a possibility that unknown volcanic eruptions are the reason for sinking ships in ... for example ... the Bermuda Triangle, or is it more likely that methane bubbles rise from the seafloor to the sea surface causing these incidents?
Thanks for the video 🖐👴

Looks like the hotspot is close to the slip fault so there could easily be many millions of years of eruptive history there.

Fuca = Few-ka.

Oregon has two cities with volcanoes, Bend & Portland. Oregon State University & Hatfield Marine Science Center in Newport, OR does science & research on Axial Seamount.

I live on the largest active volcano on the planet.

Watching a video today about the "Million Dollar Highway" in Colorado, they talked about a caldera (and a volcano?) in southern Colorado. That sounds interesting. They talked about how incredibly old the rocks were there.

It was something to look at the image-map of the sea floor in the region, and see where the plate boundaries were by looking at the geologic topographical features! I've heard of the Axial Seamount: TBH, I thought it was the name of a certain kind of seamount, and not the name ofa particular place.
I don't know if I'm remembering this correctly, but wasn't one of Axial's eruptions discovered when an instrument pack dropped onto it recorded both changes in its elevation and temperature, as it was picked up and carried along by the lava flow? Again, poor memory at work here, but I seem to recall that the people monitoring the instruments were mystified by the data until they retrieved the instruments and found them coaten in a skin of glassy black solidified lava...

Outstanding analysis. Very interesting topic. That was all new information for me. Didn't know about those hotspots. Thanks so much for your wonderful channel.

Would you please explain "Morro Rock" and the string of ?Plugs? On an approximate line of WSW to San Luis Obispo? Are they really plugs or??
Also why there and what happened to them over Time?
Thank you very much for this content, that has taught this old guy (74) so much Knowledge... 🐸

the ocean volcanoes, seamounts are constantly erupting, and in the process are warming the ocean and changing the ocean currents, which are responsible for weather, there is research supporting this but it goes against the propaganda of how humans are in charge of weather and all the green energy crap. I spent a few years working for the USN tracking ocean tempatures and subsequently for NOAA with birds in the air for that same purpose

Thank you! I would love to see you cover the tower mountain caldera, also of Oregon. You may find it as interesting as I do

Buoyancy of ship above gaseous submarine volcanoes is fascinating.
Isn't that the phenomenon that happened at the Bermuda Triangle?
Have you done a video on that area?

I was curious about the tectonic plates an movement in this area. Do the plates around Juan de Fuca move by being drug under in subduction elsewhere or by being pushed into subduction elsewhere . Is Juan de fuca lifting up and growing larger over time.

Daily reminder to cover Japan's Bandai San volcano, day 3.

Thanks for this GeologyHub! The Axial seamount’s eruptions are quite recent. I wonder why it is so obscure.

The Pacific Plate has so many hotspots...

Would you be able to do a video about the Dotsero volcano? It’s Colorados last active volcano. I don’t think many people know we have one.

The Pacific Northwest may be the most beautiful area in North America.

What if instead of having a superquake we end up having a huge undersea volcano that gives us another big group of islands.

That would rule.

Can seamount elevation be monitored by satellite or does it require transmitters on the summit and sonar boats? When underwater calderas form/expand, do they cause tsunamis?

Don't forget about the Cascadia Subduction Zone, that encompasses that exact area.
Thats a huge bit of information.

Wow... I feel comfortable openly wondering if this hotspot has a likely very similar future to look forward to as the yellowstone hotspot has demonstrated upon te landscape over the millions of years since it was subducted.

The puzzle is probably out there in the rocks if Nick Zetner's videos have taught me anything, but nothing repeats in time or history, even if a very similar occurance happens twice. I'm not "scholastic" so I don't follow enough to nail the science. But enough to understand and gain a foothold and know where to ask qustions... and to also see how geology fits into the broager abstract "science" we've created to make sense of the world we objectively do share. Even if it's a sim it's our reality till it's not, and we either are disappointed after the plug is pulled, or it doesnt matter anyways whatever the reality is.

It was mentioned in a video referencing the Basin and Range Provence in the U.S. was caused by the North American Plate being pulled apart. It doesn't seem obvious what forces are causing this, is it caused by the interaction with the Pacific Plate? Or other factors?

I heard stories from Crabbers, that there is a large Seamount that when they are dropping pots that the depth starts to rise as they are mapping the pots. Like a mountain, just starts to climb and they avoid that area

Just curious. How far is the summit below the surface, and will it eventually form an island?

Between the tip of South America and the Antarctic Peninsula is an interesting tectonic feature that includes the island of South Georgia and the South Sandwich islands. A number of active volcanos reside here. A description of how this feature formed would be interesting.

Am I wrong in understanding that caldera collapse happens nearly simultaneously with the magma chamber emptying? The story is almost always told in a step-wise fashion, but it seems to me that there is no empty chamber to collapse into. As the chamber empties, the collapse happens progressively like we saw in Kilauea recently. The total collapse took months as magma flowed out to the rift zone.

Am I correct?

We all know that there are several dangers from volcanoes, hot lava, pyroclastic flows, ejecta. Let's add one more perk for volcanoes: if it's an underwater volcano and your ship goes over it while gas is ejected your ship may sink.

Another fascibating volcano that most don't know about. Thanks GH! You keep us all so well informed!

You do such a good job explaining these features and events, I hope you can get some sort of grant to get paid doing them, as part of an outreach effort form the geological community to the average citizen.

Is there anything much on activity of Fracture Zones? Particularly Cain?

Thanks for these volcano discussions.

Good content and visuals, well informed. keep it coming!

Can you please make a video on the Sleeping Giant formation in Connecticut?

Any chance this volcano will ever breach the surface??

fascinating complex. Always interested to learn about JDF and related plates.

What can you tell me about Mammoth Mountain in California?

These underwater volcanoes and their subsequent eruptions have more effect on the planet’s climate than any “man-made” activity. The Earth is constantly trying to balance itself, and volcanism plays a part in that process.

I may have missed it but how deep is the water covering this volcano?

It would be super interesting if it was able to erupt and destroy portfagland, otherwise it's just boring.

There was just a 5.2 out there in the last couple hours

I wonder what sort of tsunami activity the caldera collapses caused….

do a video on tamu massif

Do mt vesuvius

Although not technically in Oregon, the axial seamount is a fascinating complex. Being caused by a hotspot, erupting 3 times since 1990, and having a large caldera make it quite interesting to study.