Earthquake Thread ~ Always Updated

Ya know, I wrote this big, long response out but decided the best answer (whether it makes sense or not) is propaganda. As with everything else.

The "quake-tards" stay out. Watching always. The majority of the AC's you see suddenly posting EQ threads saw it on Twitter...

Thanks for the reminder! I have to check right now to see if I can get that movie!

Haven't checked in a few days. Maybe tonight is the night!

Magnitude 3.0
Region LIBERTADOR O'HIGGINS, CHILE
Date time 2015-05-23 05:52:47.0 UTC
Location 34.38 S ; 70.65 W
Depth 108 km
[link to m.emsc.eu]

Simple27 I see you on here everyday posting every earthquake over .2 I would like to know what you think I have been reading these posts for a few years now and i cant recall seeing anything like this after the Napal volcano things look very active to me. Do you think something bigger is comming.

Thanks for the repsonce! I didnt mean to sound offensive by saying quake tards.. just seems a lot of random eq threads especially today.

it would make sense if its twitter tards though..

that is the long valley or mammoth Caldara the 2nd largest

Caldara to Yellowstone Caldara .

4.4 Chile


Magnitude ML 4.4
Region OFFSHORE TARAPACA, CHILE
Date time 2015-05-23 06:42:31.0 UTC
Location 20.23 S ; 70.86 W
Depth 32 km

Last Edited by SkinnyChic on 05/23/2015 03:06 AM

I am nothing more than an observer. I watch, listen and try to understand. So anything I think is just my opinion based on information available to us. I listen more closely to those who have been watching far longer than myself and I consider myself a pretty good judge of character.

That being said, based on the info available to us (which is based on historical facts/data/analysis/etc.) I think we will see a 7.0/7.0+ within the next 5 days.

Where....I have no clue. US west coast seems to be the biggest potential target at the moment. IMO. Or of course the Solomon Islands/Santa Cruz Islands.

Then there is the potential for another volcano eruption in Chile. And all of the other volcanic activity worldwide.

So ya, lol, I guess I think something bigger is coming. I don't want to see anything terrible happen and would never wish that upon anyone, I'm just answering the question you asked. : )

Oh no worries lol! I call myself a quake-tard all the time. And a moon-tard, and a sky-tard, and a sun-tard, and an aurora-tard, and a storm-tard, etc.

:s27daymoonnye2:

:s27moon1815:

You forgot love-tard....just trying to be helpful.

4.2 Nepal

2015-05-23 07:29:00.0
16min ago. 27.74 N 86.20 E 10
4.2 NEPAL

Last Edited by SkinnyChic on 05/23/2015 03:46 AM

2015-05-23 07:31:18.1
16min ago
2.91 N 126.31 E 59
4.9 MOLUCCA SEA

Love you Simple!!!
So happy you like your new office!
I'm going to try to get some sleep. Not feeling so great all of a sudden. Started 15 min ago with intense ear pressure, both sides, best I can describe like I dived too far down in water. But now I have that high pitch ringing. Not at all saying it's connected to anything, just saying it's kicking my ass so I'm going to lay down. You should get some sleep too!

Nite nite Skinny. hope you feel better

Thank you Zombie!

So nice to read u guys while I wait. Still at hospital. Slow it was the same when I gave birth. Typing on new tablet go while at Hosp. Great pic with airplane.

Yellowstone again

Magnitude ML 2.8
Region WYOMING
Date time 2015-05-23 08:03:17.5 UTC
Location 43.39 N ; 108.79 W
Depth 19 km

[link to www.emsc-csem.org]

Can't sign in have 5o shut off auto help on keyboard lol

Oops Finley here late night think always problem lol

Hiya Finley!

What's shakin'?

Ok I'm out.

Goodnight fellow quake people.

Good morning fellow quake people!!!

Time for some coffee!!

:coffee1a:

I was thinking, Last night after the Nevada quakes, could this be related to the Hoover dam drying up/ being low?

Reason i ask this is, when the Hoover dam and other dams have been filled up after construction, there has been quakes due to the shift in weight etc. I wonder if it could be in anyway related? The water drying up might be slower than when it fills up quickly, BUT still makes a change in weight, pressures etc.
It wouldn't have to be directly under the dam itself to cause a quake either, the pressure could be released anywhere really.

I think its called Induced seismicity

Just a thought.

edit:
found this:

Every dam site has unique geological characteristics. Gaining a thorough understanding of these characteristics is expensive and time–consuming: millions of dollars may have been spent on a geological survey before it finds that a site is unsuitable for a dam. It is therefore normal for dams to be designed with only a partial knowledge of local site conditions – the builders just have to hope that they will not find any unstable formations which will fail to support their foundations or cause the roofs of their tunnels to come crashing down. More than three–quarters of 49 projects assessed in a 1990 World Bank study of hydropower construction costs were found to have experienced unexpected geological problems of some kind. The study concluded that for hydrodams "the absence of geological problems should be treated as the exception rather than the norm."

Reservoir–Induced Seismicity:
It is well established (although little known by the general public) that large dams can trigger earthquakes. The first observation of possible reservoir–induced seismicity (RIS) was noted for Algeria’s Quedd Fodda Dam in 1932; the first extensive study of the correlation between increased earthquake activity and variations in reservoir depth was made in the 1940s for Hoover Dam. Today there is evidence linking earth tremors and reservoir operation for more than 70 dams. Reservoirs are believed to have induced five out of the nine earthquakes on the Indian peninsula in the 1980s which were strong enough to cause damage.

As with most aspects of seismology, the actual mechanisms of RIS are not well understood, and it is impossible to predict accurately which dams will induce earthquakes or how strong the tremors are likely to be. Most of the strongest cases of RIS have been observed for dams over 100 metres high – but dams just half this height are also believed to have induced quakes. Reservoirs can both increase the frequency of earthquakes in areas of already high seismic activity and cause earthquakes to happen in areas previously thought to be seismically inactive. The latter effect is the most dangerous as structures in areas thought to be quiescent are not built to withstand even minor earthquakes. Complicating the picture further are five reservoirs, including Tarbela in Pakistan, where a reduction in local seismic activity was noted after impoundment.

The most widely accepted explanation of how dams cause earthquakes is related to the extra water pressure created in the microcracks and fissures in the ground under and near a reservoir. When the pressure of the water in the rocks increases, it acts to lubricate faults which are already under tectonic strain, but are prevented from slipping by the friction of the rock surfaces.

For most well–studied cases of RIS, the intensity of seismic activity increased within around 25 kilometres of the reservoir as it was filled. The strongest shocks normally occured relatively soon – often within days but sometimes within several years – after the reservoir reached its greatest depth. After the initial filling of the reservoir, RIS events normally continued as the water level rose and fell but usually with less frequency and strength than before. The pattern of RIS is, however, unique for every reservoir.

The most powerful earthquake thought to have been induced by a reservoir is a magnitude 6.3 tremor which flattened the village of Koynanagar in Maharashtra, western India, on 11 December, 1967, killing around 180 people, injuring 1,500 and rendering thousands homeless. The dam was seriously damaged and power cut off to Bombay, causing panic among its populace, who were able to feel the quake 230 kilometres from its epicentre. The epicentre of the tremor and numerous fore– and aftershocks were all either near the Koyna Dam or under its reservoir.

RIS is suspected to have contributed to one of the world’s most deadly dam disasters, the overtopping of Vaiont Dam in the Italian Alps in 1963. The 261–metre Vaiont – the world’s fourth highest dam – was completed in 1960 in a limestone gorge at the base of Mount Toc. As soon as the reservoir started to fill, seismic shocks were recorded and a mass of unstable rock debris on the side of the mountain started to slide toward the reservoir. After reaching a maximum depth of 130 metres in late 1960, the reservoir was partially drained, and the seismic activity and slope movement almost stopped. The reservoir was then filled again, provoking a new increase in tremors. Despite the tremors, engineers and geologists, according to a later engineering report, decided "that the mass . . . would keep moving so slowly that no problems would occur."

The experts were wrong. Heavy late summer rains in 1963 swelled the reservoir. In the first half of September, 60 shocks were registered and the movement on Mount Toc started to accelerate. On the night of 9 October, 350 million cubic metres of rock broke off Mount Toc and plunged into the reservoir. The gargantuan wave resulting from the impact overtopped the dam by 110 metres – the height of a 28–storey building. About two minutes later the downstream town of Longarone was levelled and almost all its inhabitants killed. Altogether 2,600 people died.

The actual relationship between the seismic activity and the landslide is not certain, but it is likely that the numerous shocks at the very least hastened the collapse of the mountainside.

Leonardo Seeber, a seismologist at the Lamont–Doherty Earth Observatory at Columbia University, New York, believes that official maps which show the areas most at risk of earthquakes should also indicate the increased risk near many reservoirs. If this were to happen, communities near reservoirs could presumably demand compensation to "earthquake–proof" buildings, greatly increasing the cost of dams. The dam industry would probably strongly oppose any such measures which would raise awareness of RIS. Seismologist Harsh Gupta, Vice–Chancellor of Cochin University in India and a professor at the University of Texas, notes a "general reluctance in parts of the engineering community, worldwide, to accept the significance or even the existence of the phenomenon of reservoir–induced seismicity." Action in the courts could force the dam industry to accept the importance of RIS: a 1994 article in the Journal of Environmental Law and Litigation concluded that people who suffer from induced quakes would have grounds under US law to sue the operators of a reservoir.

Last Edited by LauraPhoenix on 05/23/2015 10:14 AM

Thanks for the info Laura : )

:s27coffee1:

Magnitude 4.7
Region SOLOMON ISLANDS
Date time 2015-05-23 06:07:06.8 UTC
Location 11.23 S ; 162.75 E
Depth 10 km
[link to m.emsc.eu]

Magnitude 4.4
Region HINDU KUSH REGION, AFGHANISTAN
Date time 2015-05-23 07:28:03.0 UTC
Location 36.51 N ; 70.49 E
Depth 211 km
[link to m.emsc.eu]

23-MAY-2015 13:09:43 -20.20 -70.85 4.8 19 NEAR COAST OF NORTHERN CHILE 5114692
23-MAY-2015 12:54:28 -18.47 -69.33 5.1 124 NORTHERN CHILE 5114690
23-MAY-2015 11:53:31 -5.48 152.76 4.6 51 NEW BRITAIN REGION, P.N.G. 5114691
23-MAY-2015 11:13:12 17.01 -99.53 4.5 41 GUERRERO, MEXICO 5114687
23-MAY-2015 09:20:03 -10.96 163.63 4.7 10 SOLOMON ISLANDS 5114679
23-MAY-2015 07:31:15 2.82 126.26 4.6 79 NORTHERN MOLUCCA SEA 5114672
23-MAY-2015 06:07:06 -11.23 162.75 4.7 10 SOLOMON ISLANDS 5114674
23-MAY-2015 05:04:53 57.02 -154.79 4.1 46 KODIAK ISLAND REGION 5114667
23-MAY-2015 04:15:53 -11.13 163.46 4.7 10 SOLOMON ISLANDS 5114660
23-MAY-2015 03:04:51 -24.87 -179.16 4.7 411 SOUTH OF FIJI ISLANDS 5114654
23-MAY-2015 00:54:00 -11.07 163.38 4.9 10 SOLOMON ISLANDS 5114643
23-MAY-2015 00:39:28 -11.04 163.14 5.4 10 SOLOMON ISLANDS 5114640
23-MAY-2015 00:20:48 -11.23 163.38 5.1 10 SOLOMON ISLANDS 5114638
mag 4 and above for the 23rd