Map Centered at 35°N, 93°W
Monday, February 28, 2011
Map Centered at 35°N, 93°W
Friday, February 25, 2011
Thursday, February 24, 2011
Tuesday, February 22, 2011
IMPORTANT LINK IF YOU NEED TO LOCATE SOMEONE IN AND AROUND CHRISTCHURCH:
Other links for the curious:
Here are some interesting links about earthquakes, including a cool map of the earthquakes that have happened in and around Christchurch, New Zealand, even before today's deadly 6.3 mag quake. This map in interesting to watch. Check it out! Make sure you check the box to view the fault that is causing all this shaking. Before the Sept 2010 main quake, this fault was unknown!
Here is a good article in the LA Times that compares LA's earthquake experiences and that of Christchurch. It explains the passive building codes, and the nearness of the epicenter of the the quake in Christchurch as factors on why it was so deadly. I suggest reading it.
Also here is an App called Tectonic that lets you see recent earthquakes throughout the world with a 3D interactive globe display. It has many options and helps you understand and visualize how quakes happen along tectonic plate boundries.
These tools are great to use in the classroom or during homework sessions. It also is helpful for those wanting to monitor earthquakes in a new way.
Looking at the Christchurch earthquake footage on CNN, I am now thinking about what someone should do during an earthquake. I'm sure there will debate among public safety and emergency experts on whether one should run outside their building or should duck and over under heavy strong furniture. In the footage, you see people running and stumbling over rubble, as yet more debris falls from overhead. It's very eye opening footage.
Monday, February 21, 2011
Saturday, February 19, 2011
Friday, February 18, 2011
Thursday, February 17, 2011
We are experiencing some very interesting ground activity this year. The past few months, the state of Arkansas has been having an odd swarm of small and moderate earthquakes. Within a day, there had been seventeen EQ's, and two of them were certainly felt.
Tuesday, February 15, 2011
Monday, February 14, 2011
Here are some more links concerning what is happening or what is not happening at Yellowstone. There are right now two sides of the picture.
One side states that it's simply non-seimic and a system error, perhaps due to the extreme cold at Yellowstone.
The other side of the story states that indeed there are earthquakes, and that the authorities are suppressing them.
he more information I come across the more possible either side of the story is. It benefits us to keep a sharp eye on the area, and find as many sources of information as possible.
I suggest caution when going on the conspiracy theory and rapture sites. I suggest being profoundly objective on this one. We don't need undue panic, but we do need caution and preparedness.
If this makes little sense, let's put it in a sentence. Be like an alert rabbit, ready to spring for shelter, regardless whether it's a wolf nearby or not.
Another thing to keep in mind is that this is unlikely to blow within a short span of time, for it may blow a hundred thousand years from now or simply next week. We don't know for sure.
There are teams of researchers and scientists that are working very hard to come up with reliable technologies that may someday detect precursors to volcanoes and earthquakes. There have been measurements of IM emissions around volcanos and faults over recent years, but the science community is seeking acute accuracy with these measurements and the technology that gathers them. That is why the science community has not yet drawn a conclusion on geologic precursors.
I do see that technology on the horizon, and we may see some of it applied within ten years or so. Believe me, the researchers are intensely trying to come up with a way to detect big events!
One thing I do ask of Big Government and other authorities, is that if they do wish to censor science, please refrain. Science should be for the public too, not just the leadership.
I also keep in mind that it is so hard these days for a research team to gain budgeting from the government, that they are very cautious on what they say. If a research team shouts wolf, and nothing happens, they run the risk of losing their budget for the next year. Politicians have gotten their grubby hands into science, and it's effecting what is said.
So if a cover up were to happen, I guess I should be understanding to some extent. On Sunday, I was not. I had blurted out that there was a cover up. I'm just a simple normal person with normal reactions to things.
These links are from both legit and paranoid sites, and I include both so that you can make up your own mind on which is bullshit, and which info is good.
Here is a page with a completely shut down seismograph. It's obviously down for repairs or shut off for unknown reasons.
Sunday, February 13, 2011
Saturday, February 12, 2011
Friday, February 11, 2011
Wednesday, February 9, 2011
Monday, February 7, 2011
VISITING A VOLCANO - DRIVING ALONG THE EAST SIDE OF THE SALTON SEA
On Sunday, I went to the very place I have been blogging about so much. I drove for two hours to the Salton Buttes Volcano. Indeed, if I were to chose to miss a game between two of my favorite teams, the Steelers and the Packers, it should be for a good reason. Well, heading off to this very volcano, the one that stirs my curiosity, is worth missing such a game!
I live to the northwest from Salton Buttes, and the drive from Palm Springs in itself is dramatic. First I drove past the large casinos and what small sand dunes are left in the Coachella Valley. Once the big box stores, strip malls, housing developments, gated communities and casinos thinned out, we entered a very wide area of farmland. This is a very fertile jewel in the middle of a harsh and very dry desert. The ground in this part of the California desert is normally gravel and sand derived from the surrounding granite mountains. The mountains are amazing to look at and to study. The Coachella Valley is a narrow valley that lies between the young Santa Rosa and San Jacinto mountains to the west and the much older Little San Bernardino mountains to the east. The Santa Rosas and San Jacinto had once been underground plutons of magma. San Jacinto is about 2 million years old, while parts of the Little San Bernardinos are more than a billion years old! The Little San Bernardinos contain gneiss, schist, and intrusions of granite. In the past gold was mined in these mountains.
We drove a long time on Hwy 111 through date groves, alfalfa farms and other growers. During the drive through the farmland near the town of Mecca, you'll would be unaware of the large body of water ahead, and a bit to your right. Then suddenly the farms fall away, and it's sun bright empty desert and a glimmering splinter of lake off the right. On some days, you won't realize it's a lake until it widens out. You're looking at a vast salt water inland lake - the Salton Sea!
The present Salton Sea is an accidental sea, and worth Goggling and learning more! Long ago, a manmade water channel broke, and the colorado river flowed into the dry lake bed where now lies the Salton Sea. The area remains a lake to this day, and it has grown very salty and polluted over the decades. Today, there is a vigorous clean up going on, and the lake is a bit less polluted. There is a lot more work needed in cleaning up this strange lake.
The drive along the Salton Sea takes about 45 minutes, and this Sunday, the sky was very clear. We could see the Santa Rosas across the lake, and then the more distant mountains near Julian, CA. Soon, I could make out the pyramid shaped Signal Mountain, just over the US/Mexico border. On this day, at about 4 o clock pm, there was a 4.0 earthquake near Signal Mountain. I didn't feel it, for I was still in the car.
When driving along the lake, about half way down the shore, you'll notice a rocky shallow rise that parallels the road. It follows the road and is about two hundred to one hundred yards to the left. That very rise is a trace of the San Andreas fault! At one point you'll notice a rocky deformed outcropping right in front of you, which is the same trace, and then the road turns slightly, and goes by it. Soon after this, you will drive past the tiny community of Bombay Beach. This is a dusty small town right on the shore of the lake. It is also the point where the strike slip San Andras fault ends. That 700 mile fault ends right off shore!
After that, its yet more empty desert road, with shimmering lake to the right ......
On, and on ......
The farmland starts again, and the small town of Niland is just ahead. This is the start of an area of rich and productive farmland that extends down into Mexico, past Mexicali, extending far south, and east to Yuma. This farmland lies within a spreading zone, and when seen from space, almost illustrates this rift valley's shape with it's green.
Thus, we pass Niland, a one gas station, two cafe town - and then some hydrothermal power plants with their steam, cross more farms, past fields crowded with flocks of white geese, past a dry salt plain that smells like hell, past Red Hill lava dome off in the distance, and then Obsidian Butte lava dome, a small stinking marsh, some shiny black lava boulders ... and then the volcano's vents!
The living, hissing, gurgling boiling volcanic vents indeed. The mud pots!
As we approached this living volcanic visible evidence of a rare 'on-land rift', we were hesitant. Should we walk on that ground? Would the ground be soft? Will the ground be thin? My assistant and I looked at each other, and said, "What the hell ..."
And we don't regret what we witnessed once we crossed the grey lifeless field to meet our living volcano.
Saturday, February 5, 2011
Map Centered at 44°N, 111°W
Take a look at the USGS map now, where is that moderate earthquake that was on that same map this early morning? What happened to it? Weird.
Here's another article, and one that does not downplay the volcano's potential:
Map Centered at 42°N, 110°W
Tonight, at the Yellowstone Volcano, just over an hour ago, we had a 3 point plus magnitude earthquake, and another smaller one today. Along with these there has been a mild earthquake swarm. This is a place of much interest to the public safety community and geologists, for this is the Yellowstone Super Volcano. This volcano is a collapsed caldera, and still has an immense magma chamber below it. Heat from that magma is heating up water, creating the famous Old Faithful gyaser. There are many other tale tale features throughout the park, telling of the existence of a large volcano. Practically the whole park is a volcano! Yellowstone Lake has evidence of a powerful steam explosion, which created one of the coves, and there are hot water ponds next to the lake, where local wild bison hang around to stay warm. One very recent event is very interesting. Yellowstone Lake's water level has shifted, and when investigated by scientists, an area of up lift of the ground in one area was discovered, as well as a lowering of the ground in another area. Just to the north of Yellowstone Lake is an area of ground swelling, and is often thought of as an area of lava domes.
Last year there was an earthquake swarm at Yellowstone, with thousands of small and moderate earthquakes. It had a few people alarmed. Authorities claimed that it was no big deal. The area is prone to earthquake swarms - but one as intense as the one last year?
I'll post more on Yellowstone when I have the time, for on Saturday I'm heading off to Salton Buttes volcano to image it - so I'll be on the road in a short while! Not much time now for pulling up papers and links. But what I can do for now, is suggest that you goggle Yellowstone Volcano and do some learning. I also suggest clicking into this USGS link now and then, throughout the week, and watch the micro and moderate quakes closely. It's very interesting to observe. And a little scary.
Take note that any strong earthquake, stronger than 6.5 mag, can kick the magma into action, if indeed that magma is disturbed out of balance enough. If a quake were to cause a deep fissure, and if water were to come into direct contact with the magma - things might become rather explosive. Or, not. Your guess work is as good as mine on that one!