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Posts treating: "earthquakes"

Monday, 25 May 2015

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Physics - High Energy Part 1 

Ontario-geofish [2015-05-25 15:14:00]  recommend  recommend this post  (27 visits) info

 US
I'm going to visit my son in California and I have two things on my mind - earthquakes and drought.  Both are the result of high-energy processes in our good old Earth. The first is drought.  California has had a very long drought so far.  However, looking at tree rings and such, 100 year droughts are common, and very long droughts have wiped out ancient civilizations.  It is the natural

Warning of man made earthquakes in Hengill volcano 

Iceland Volcano and Earthquake blog [2015-05-20 17:18:55]  recommend  recommend this post  (24 visits) info
Almannavarnir put out a warning yesterday (19-May-2015) about increased risk of man made earthquakes in Hengill volcano. This happens when a water is pumped down into the ground it changes the pressure in the rock and creating earthquakes … Continue reading

The geodetic fingerprints of shallow thrusting in Nepal 

Highly Allochthonous [2015-05-20 16:21:11]  recommend  recommend this post  (29 visits) info

 NP
NASA’s Earth Observatory put out this great image last week, which shows the ground displacement in Nepal resulting from last month’s devastating magnitude 7.8 earthquake, which has claimed at least 8,500 lives. The vertical displacements have been calculated by comparing … Continue reading

May 15, 2015 

Geology.com News [2015-05-15 08:10:59]  recommend  recommend this post  (46 visits) info

 NP
Natural Gas Imports & Exports 2014Energy Information Administration USGS: The Chemistry of Marcellus Shale Produced WatersUnited States Geological Survey Nepal Landslide ConcernsBBC Drillers Answer Low Oil Prices With Cost-Saving InnovationsThe New York Times Video: Eight Days of Cave Diver Training in 44 MinutesCavingNews.com Small Eruptions at Telica Volcano, NicaraguaStuff.co.nz Nepal’s Earthquakes and China’s Dam-Building BingeQuartz

Return Times Of Great Himalayan Earthquakes 

Reporting on a Revolution [2015-05-05 11:41:00]  recommend  recommend this post  (27 visits) info

 US,NP,NZ
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Bollinger, L., S. N. Sapkota, P. Tapponnier,Y. Klinger, M. Rizza, J. Van der Woerd,D. R. Tiwari, R. Pandey, A. Bitri, and S. Besde Berc (2014), Estimating the return times of great Himalayan earthquakes in eastern Nepal: Evidence from the Patu and Bardibas strands of the Main Frontal Thrust, J. Geophys. Res. Solid Earth, 119, doi:10.1002/2014JB010970. This is a very detailed study taken

Eyewitness Account Of A Great Nepal Earthquake 

Reporting on a Revolution [2015-05-05 08:42:00]  recommend  recommend this post  (25 visits) info

 NP
From 1934 - as reported by military officer Bhrama Shumsher Rana in his book  Mahabhukamp (The Great Earthquake) - “The trees were moving as if they were agitated by a storm and it seemed that the tree-tops would touch the ground … Pillars and walls of houses were cracking,doors and windows slamming. With movements up and down, houses collapsed. Statues and decorations placed on top of

Earthquake swarm on Tjörnes Fracture Zone (TFZ) 

Iceland Volcano and Earthquake blog [2015-04-28 15:32:55]  recommend  recommend this post  (30 visits) info
Since yesterday (27-April-2015) at least there has been earthquake swarm taking place in Tjörnes Fracture Zone (TFZ). This earthquake swarm had a peak in activity during the night. Total of 49 earthquakes have been recorded so far, it … Continue reading

Tragedy in the Himalaya – Largest Earthquake for 80 years in Nepal 

Geology for Global Development [2015-04-25 19:07:48]  recommend  recommend this post  (39 visits) info

 NP,GB,NZ
Almost all of you will have seen the tragic news coming from Nepal. A magnitude 7.8 earthquake struck the region between Pokhara and Kathmandu, with at least 1000 killed at the time of writing. This number is likely to go up in the coming hours and days as the true extent of the devastation becomes apparent. Here we note some recommend reading and news sources on the event: UNISDR blogs from 2012 and today, giving valuable background information on the disaster risk reduction progress that [...]

Accumulating a few links on the April 25, 2015 M7.9 Nepal Earthquake 

Active Tectonics Blog [2015-04-25 15:57:00]  recommend  recommend this post  (27 visits) info

 NP,IN,US,KM
An M7.8 earthquake occurred 77km (48mi) NW of Kathmandu, Nepal April 25, 2015. It apparently occurred along the Main Himalayan thrust fault system which accommodates the substantial convergence between India and Eurasia. According to the USGS, the last great earthquake in this region along the Himalayan arc was about 240 km southeast--the 1934 M8 1934 Nepal-Bihar earthquake--and caused major damage to Kathmandu and caused about 10,600 casualties. This 2015 earthquake is likely to have been [...]

Major Earthquake in Nepal Upgraded to Magnitude 7.9 

Geotripper [2015-04-25 09:42:00]  recommend  recommend this post  (30 visits) info

 IN,NP
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Source: http://earthquake.usgs.gov/earthquakes/eventpage/us20002926#general_summary A very strong earthquake has struck in Nepal with a magnitude of 7.9 (initial reports listed 7.5). One would expect that serious damage will result; three earthquakes in the last 110 years have approached this size, and the death toll for all three was in the tens of thousands (1934 M8.1 Bihar, 1905 M7.5

What’s up? The Friday links (78) 

Paleoseismicity [2015-04-24 12:00:37]  recommend  recommend this post  (29 visits) info

 AT,US,CN,NZ,ZA
Welcome back from all the EGU Vienna, SSA Pasadena and INQUA Fucino meetings during the last days. You have missed a lot of stunning images. Today is Friday and here are your links! We had quite a few links on North American seimology and earthquake hazard in the past – here is Julian‘s post on Precarious Boulders and Earthquakes in New Zealand. He introduces Mark Stirling’s work on the earthquake history of fragile boulders (or rather the history of

Precarious Boulders and Earthquakes 

Julian\'s Blog [2015-04-22 23:43:00]  recommend  recommend this post  (27 visits) info

 GB,NZ,ZA
img
The National Seismic Hazard Model is the result of lots of work by scientists to indicate the likelihood of earthquakes happening in different parts of New Zealand.It is made with reference to the historic record of earthquakes that have happened across the country, combined with research into the rupture histories of many individual active faults.Work is done to continuously 'ground truth' and improve the Hazard Model through ongoing research and addition of data.Mark Stirling has developed a [...]

Oklahoma comes clean about earthquakes 

Ontario-geofish [2015-04-22 12:39:00]  recommend  recommend this post  (26 visits) info

 US
Reference That's nice.  Now I don't have anything to do.  I can't make fun of the OGS or the usgus.  They have taken the more extreme position that it is all the water they inject, not just surface water. It's too late for the oil industry to come up with this thought: “It worked out smashingly right up to the point where it didn’t,” Mr. Hatfield said. “Something changed and we need to

The Great Utah ShakeOut: 920,000 drop, cover, hold on 

Utah Geological Survey - blog [2015-04-21 01:03:24]  recommend  recommend this post  (1 visit) info
Who participated in The Great Utah ShakeOut? If you missed out, you can always pick a time with family or friends to make sure that you know what to do in the event of an earthquake. deseretnews.com At 10:15 a.m. Thursday, Utahns all across the state — from elementary children to state officials — took

Twin fours, earthquakes in Oklahoma 

Ontario-geofish [2015-04-19 13:02:00]  recommend  recommend this post  (33 visits) info

 US
I don't feel like writing about them, they look like average depth strike-slip.  Very mundane.  I'm expecting a storm of 4's as a prelude to a 5, and I'll write

Oklahoma earthquake - extremely tiny and shallow 

Ontario-geofish [2015-04-15 15:18:00]  recommend  recommend this post  (35 visits) info

 US
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They are now reporting earthquakes below 2.5.  I guess they got their extra seismic analyst.  We are now going for a record for the tiniest earthquake being felt.  The rule of thumb used to be that you needed a 3 to be felt, but OK is going way beyond that.  This is an extremely shallow strike-slip (shear) earthquake, you can tell by the felt area to the NE.  Their stated depths don't

Mauna Loa Quake Activity Increases 

Volcano Science And News Blog [2015-04-15 02:08:00]  recommend  recommend this post  (58 visits) info

 US,MX
During the past couple weeks, Mauna Loa, Hawaii's largest and historically most active volcano, has been exhibiting more quake activity at its summit, and SW rift zone. HVO is monitoring the situation. Inflation restarted in the volcano in 2010, and a slow but gradual inflation is taking place. This is a bit unusual, as Kilauea is still pumping plenty of lava out and consistently creating new land. Typically, Mauna Loa only inflates when Kilauea is not active. It would be highly unusual, [...]

The Great Utah ShakeOut: Readying Utahns for a 7.0 quake 

Utah Geological Survey - blog [2015-04-13 22:01:28]  recommend  recommend this post  info

 US
deseretnews.com Drop, cover and hold on. More than 700,000 Utahns will be participating in a statewide earthquake drill Thursday for the annual Great Utah ShakeOut, an initiative to help people and organizations practice how to protect themselves in the event of a major earthquake. READ

The startling projections of a quake in Salt Lake City: What you need to know 

Utah Geological Survey - blog [2015-04-13 21:55:51]  recommend  recommend this post  info

 US
deseretnews.com It’s 2 a.m. on an April Thursday. Along the Wasatch Front, most of the more than 2 million Utahns who live here are sleeping, at home in suburban homes or aging apartments, even as thousands of others are working graveyard shifts in hospitals or other businesses. READ

Minor earthquake swarm on Hekla – SISZ boundary 

Iceland Volcano and Earthquake blog [2015-04-10 00:30:51]  recommend  recommend this post  (31 visits) info
During the night of 9-April-2015 an earthquake swarm started on Hekla volcano – SISZ boundary. This has been for most part a minor earthquake swarm so far. With largest earthquake only having the magnitude of 2,8. This earthquake … Continue reading
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