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Posts treating: "earthquakes"

Thursday, 08 October 2015

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What Earthquake Maps Should Really Look Like 

Utah Geological Survey - blog [2015-10-08 00:21:10]  recommend  recommend this post  (31 visits) info When we hear that a magnitude 8 earthquake has struck, we know that’s worse than a magnitude 4 earthquake. But how much worse? READ

Seismologists See Salt Lake City Future Disaster by Reading the Dirt 

Utah Geological Survey - blog [2015-09-30 00:05:43]  recommend  recommend this post  (32 visits) info

If you missed it a couple of weeks ago, here is an article outlining the paleoseismic study some of our UGS geologists helped with on a trench. Not far from I-215 in Salt Lake City, near the airport, a deep trench cuts through the earth. Though it looks like a sewer repair project, there’s

Seismic makeover for Utah County dam and reservoir 

Utah Geological Survey - blog [2015-09-28 23:08:57]  recommend  recommend this post  (21 visits) info

The Silver Lake Flat Dam is getting a makeover to improve stability in the event of a large earthquake Nestled high in the mountains above several northern Utah County communities, the Silver Lake Flat Dam could fail in an earthquake, sending gushing waters down the canyon and likely killing a couple thousand people. READ

Earthquake activity in Katla volcano 

Iceland Volcano and Earthquake blog [2015-09-23 01:22:04]  recommend  recommend this post  (37 visits) info

Today (22-September-2015) there was an swarm of earthquakes in Katla volcano at shallow depth. Largest earthquake had the magnitude of 3,3 with the depth of 0,1 km. The earthquake looks long period from the looks of my geophone … Continue reading

Earthquake swarm on the Reykjanes ridge 

Iceland Volcano and Earthquake blog [2015-09-22 01:42:08]  recommend  recommend this post  (33 visits) info
Today (21-September-2015) a minor (so far) earthquake swarm has been taking place on the Reykjanes ridge. Largest earthquake so far had the magnitude of 3,5 so far other earthquakes have been smaller in magnitude. The earthquake swarm on … Continue reading

Increased activity in Bárðarbunga and Tungnafellsjökull volcanoes 

Iceland Volcano and Earthquake blog [2015-09-22 01:08:44]  recommend  recommend this post  (35 visits) info
I don’t have the time or the energy to write a long article about what is going on in Bárðarbunga and Tungnafellsjökull volcanoes. What I do know is that magma appears to be pressuring Tungafellsjökull volcano, creating earthquakes, … Continue reading

The Utah Seismic Safety Commission (USSC) has a new website! 

Utah Geological Survey - blog [2015-09-21 21:31:50]  recommend  recommend this post  (23 visits) info

The USSC is the central state organization for reducing Utah’s earthquake risk by coordinating efforts, developing public policy, and disseminating results. Here you can find a large earthquake Salt Lake City scenario, and helpful booklet “Putting Down Roots” on preparing for earthquakes. Use the search to find all other USSC documents including photographs and PDFs.

Texas Regulator Clears Oil And Gas Company Of Causing Quakes [2015-09-18 06:54:37]  recommend  recommend this post  (25 visits) info

 Ordovician; US,CA
The Texas Railroad Commission issued preliminary findings saying that the hydraulic fracturing wastewater injection well operated by an Exxon Mobil subsidiary was not to blame for earthquakes that shook Reno, Texas in 2013 and 2014. From the article:Commission investigators concluded that a well where Exxon Mobil subsidiary XTO Energy pumps millions of gallons of the wastewater likely didn't cause the quakes, but also said there wasn't enough evidence to demonstrate the [...]

Chile Earthquake M8.3 September 16, 2015 

Hypo-theses [2015-09-17 09:22:26]  recommend  recommend this post  (34 visits) info

Here is the seismogram of the M8.3 Chilean earthquake of September 16, 2015 recorded at Keele University, UK. Occurring about 230km north of Chile’s capital, Santiago, the coast of Chile is prone to large subduction related earthquakes such as this, including the largest earthquake ever recorded, M9.5 in 1960. More information from the

Earthquake activity on the Reykjanes ridge 

Iceland Volcano and Earthquake blog [2015-09-11 23:09:42]  recommend  recommend this post  (38 visits) info
Yesterday (10-September-2015) there was an earthquake swarm on the Reykjanes ridge. This earthquake swarm was small and the largest earthquake only had the magnitude of 3,1. Other earthquakes where smaller in magnitude. Earthquake activity on the Reykjanes ridge. … Continue reading

Scientists help builders, planners prepare for Utah’s big quake 

Utah Geological Survey - blog [2015-09-10 23:09:01]  recommend  recommend this post  (24 visits) info

Here are a few more great articles highlighting the work some of our geologists have done towards recent earthquake research in the Salt Lake Valley: Scientists help builders, planners prepare for Utah’s big quake Utah’s seismic scientists are sounding a warning about impending earthquakes in Utah. They say Utah is not prepared for a

Geologists sample Taylorsville-West Valley fault line to study earthquake risk 

Utah Geological Survey - blog [2015-09-10 19:51:44]  recommend  recommend this post  (23 visits) info

Take a quick minute today on your afternoon break to think about earthquake preparedness. What have you done around your home to help relieve potential damage from a large earthquake? Have you talked to your family and friends, do you have an action plan if an earthquake occurs? A team of geologists, including some of

EERI Salt Lake City M7 Earthquake Scenario 

Utah Geological Survey - blog [2015-09-10 00:23:47]  recommend  recommend this post  (35 visits) info

A wonderful resource for earthquake safety and preparedness has just been released. The report was developed by the Utah Chapter of the Earthquake Engineering Research Institute (EERI) and was prepared for the Utah Seismic Safety Commission. The Scenario for a Magnitude 7.0 Earthquake on the Wasatch Fault-Salt Lake City Segment: Hazards and Loss Estimates report

Researchers studying Taylorsville-West Valley City Fault to better understand quake conditions in Utah 

Utah Geological Survey - blog [2015-09-08 19:26:38]  recommend  recommend this post  (33 visits) info

We hope you all had an enjoyable and safe long Labor Day weekend! Here’s a little story for the Tuesday morning catchup. A research team, including some of our UGS geologists, are studying a portion of the Taylorsville-West Valley City Fault to gain a better sense of past earthquakes on the fault. Read more!

Texas clears everybody of causing earthquakes - as long as they don't do it again 

Ontario-geofish [2015-09-02 00:27:00]  recommend  recommend this post  (37 visits) info

Reference That's it, somehow I was hoping that someone in Texas would come clean on how they made earthquakes turn on and off.  They took these wells that were re-injecting deep brine for years, added something to the mix, and turned on earthquakes.  They have now promised not to do it again, and we'll never know. You and I know what it is, and we don't have to go into it.  Suffice to say

Two earthquakes larger then magnitude 3,0 close to Jan Mayen 

Iceland Volcano and Earthquake blog [2015-09-02 00:06:14]  recommend  recommend this post  (35 visits) info

Today (1-September-2015) two earthquakes happened close to Jan Mayen (around 360 km away from Iceland). Those earthquakes are possibly part of larger swarm in the area, but due to distance from Iceland Met Office seismic network it is … Continue reading

What would a tsunami in the Mediterranean look like? 

Gunnars Geo-Blog [2015-08-27 20:50:00]  recommend  recommend this post  (33 visits) info

     A team of European researchers have developed a model to simulate the impact of tsunamis generated by earthquakes and applied it to the Eastern Mediterranean. The results show how tsunami waves could hit and inundate coastal areas in southern Italy and Greece. The study is published today (27 August) in Ocean Science, an open access journal of the European Geosciences Union

Earthquake Primers - The Big Bad Earth - Part 2 

Ontario-geofish [2015-08-27 19:54:00]  recommend  recommend this post  (34 visits) info
We have this big roiling Earth, and what does that have to do with earthquakes?  Simply that the earth has gone with the most efficient method of heat removal which is convection, and transfers that heat to the radiator fins of the ocean crust.  It's an operating air conditioner.  The upper convection is in the mantle, just below the solid crust, and is responsible for our earthquakes.  There

Earthquake Scenario Aimed at Promoting Preparedness 

Utah Geological Survey - blog [2015-08-26 22:24:54]  recommend  recommend this post  (30 visits) info

 US Northern Utah is due for a major earthquake. Seismologists can’t predict exactly when the Big One might happen, but they have been looking at the hazards Utah is likely to face. READ

Rolling in the deep: Mantle flow stress best indicator of US intermountain seismicity 

Utah Geological Survey - blog [2015-08-26 22:21:56]  recommend  recommend this post  (29 visits) info

 US Much of what we understand about earthquakes is based on plate tectonics. But for residents of Utah’s seismically restless Wasatch Front, a 120-mile-long metropolitan region anchored by Salt Lake City and bounded by the steep Wasatch Mountains and Great Salt Lake, such theory has fundamental limitations. READ | Impressum