Posts treating: "earthquakes"
Thursday, 05 December 2013
It is quiet in Iceland at the moment. There are so few earthquakes in fact that yesterday (or two days ago) no earthquake was recorded in Icelandic Meteorological Office SIL system for good 10 hours (or something like … Continue reading
Just a quick note about yesterday's M2.9 far away from the main zone. These are probably reacting to stress changes. If it were possible to do fault plane solutions for such tiny quakes, we would probably see shear, due to the NW strain relief of the main zone. I still think they may have stopped injection. Unlike Texas which lumps this in with railroads, there are technical people in
Oh, I am stunned. For the first time in my life I have seen earthquakes plotted together with injection wells, and volumes. Oh Glory Be!
If you click on the 'larger map' you will see that most of the wells are 25,000 barrel a day monsters. But take note that none are near Azle. This makes them issue the statement that there is no correlation. Saints be praised! They
Just in time for Christmas, I have started a new series, which may end at one.
According to this article, the situation is bad. Lucky for us, I can't extract very much from behind the pay-wall, but I'll take it that most of the foundations are loose alluvial deposits. Now, Lima has been exposed to many earthquakes over the last decades, but no big one that can produce a steady 20 cm/s,
Today (27-November-2013) an minor earthquake swarm took place in Esjufjöll volcano. This earthquake swarm was just three earthquakes according to Icelandic Meteorological Office website. There is a chance of more earthquakes not being detected due to bad weather … Continue reading
As you can see, I've had to give up reporting on the ping-pong match between OK and TX. It's just getting too confusing! Lately this is the only action in the East, and there is a great mystery where it comes from. :)
I sometimes get worried that these people are reading me and that's why I'm publishing in a more obscure g+ group. Every time I say "That's it! Now we'll get the big
I'm joking, of course, but I've never understood why you can have this great big stress disturbance, and no earthquakes in the increased-stress zone. Maybe one
Today (21-November-2013) an minor earthquake swarm took place in Þórðarhyrna volcano. All of this earthquakes were small, with the largest having just the magnitude of 1,9. Depth of this earthquakes was from 6,0 to 0,1 km. This minor … Continue reading
On the 20-November-2013 an minor earthquake swarm took place in Katla volcano, it started at 06:21 UTC and was over by 08:54 UTC. This earthquake swarm was minor one, with the largest earthquake having the magnitude of 1,2. … Continue reading
It's an obvious idea with visceral appeal: how about we take the record of an earthquake—a seismogram—and speed it up so it sounds like regular sound? I've written a new article with more detail on how this project works and what it sounds like.
When played at the right speeds, earthquakes (and infrasound, like the example in the image) sound like some guy banging on old car wrecks in a junkyard, which I think is pretty fascinating. But I pay attention to earthquake science and [...]
On November 4 people throughout the Chicago area were frightened by ground motion that was thought to have been a powerful blast at a quarry south of the city. Now, USGS believes that a small blast at the quarry may have triggered an earthquake about seven seconds
Iceland Volcano and Earthquake blog [2013-11-15 17:49:25]
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(18 visits) KM,IS
Today (15-November-2013) at 05:32 UTC an magnitude 3,4 earthquake took place 14,9 km north of Kolbeinsey island. The depth of this earthquake was 3,9 km according to Icelandic Meteorological Office. Due to distance from the SIL network the … Continue reading
More earthquakes today. I remember in the old days when the Sudbury smelter was killing everything, the debate was between Jobs and Life. And the smoking debate also had a jobs component.
Now we have this poor guy, whose every statement has to have a weasel word of 'not definite'. Usually people do this to get more money, but there isn't any down there. The only jobs in OK are
nature.com On Maine’s rugged coast, just north of the tourist town of Boothbay, an underground seismometer is listening for earthquakes. Engineers activated it on 26 September, completing the US$90-million Transportable Array, an ambitious effort to blanket the contiguous United States with a moveable grid of seismic monitors (see ‘On the march’). READ
Many residents of Oklahoma are reporting that events in the earthquake swarm occurring there produce large noises that sound like thunder. A USGS scientist addresses the noise in this article. (Since January 2009, more than 200 magnitude 3.0 or greater earthquakes have rattled Central Oklahoma. See the USGS report
At shortly after noon today, people throughout the Chicago area were frightened because they thought that an earthquake was occurring. A USGS scientist reported that it appeared to be an unusually strong quarry blast south of Chicago. A portion of the USGS “Did you feel it?” map is shown below with more USGS data here.
Well, we've done it. We've broken out into a full Arkansas mechanism, which I call a 'Baby New Madrid'. I've predicted this for so long, and it happened. Now we have big thrusts (M3.8), followed by a quake on the shear wing (M3.2). The 3.8 should have some intense PGV for its size, since it hammers directly upward.
If they keep injecting to keep the garbage collected, and the city
“A new study correlates a series of small earthquakes near Snyder, Texas between 2006 and 2011 with the underground injection of large volumes of gas, primarily carbon dioxide (CO2) — a finding that is relevant to the process of capturing and storing CO2 underground.” Quoted from the University of Texas at Austin press
Today (04-November-2013) at 04:03 UTC an minor earthquake swarm took place on the Reykjanes ridge. The largest earthquake in this swarm had the magnitude of 3,2 and the depth of 12,2 km. Earthquakes are no uncommon in this … Continue reading
I don't know how much we can rely on their locations, but it is a NE spread, probably along the top of the megathrust, just like the situation at Hamilton. I really don't expect much to happen in this scenario, although it must be keeping people up. I was hoping to see a NW trend, which would be really dangerous. Keep on injecting!
Update: OK survey indicates more earthquakes but not