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 Canadian Earthquakes 
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 Canadian Earthquakes
Holy smokes I just experienced my fist ever earthquake, it woke me from a dead sleep :awe

CP24 is just breaking the story now, they are saying it was felt from western new york, this was a VERY WIDE area

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Wed Jun 23, 2010 10:53 am
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Post Re: 5.5 Toronto Ontario Earthquake
Very strange feeling, huh?

Can't find anything on the 'net! Weird.

You okay?

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Wed Jun 23, 2010 11:03 am
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Post Re: 5.5 Toronto Ontario Earthquake
Yup all ok thanks, just felt really weird....

Here are some news feeds coming in now, they are saying its a 5.7 and second one hit the Ottawa Region

http://www.theglobeandmail.com/news/nat ... le1614941/

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Wed Jun 23, 2010 11:07 am
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Post Re: 5.5 Toronto Ontario Earthquake
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A possible Canada earthquake shook Toronto and Ottawa at approximately 1:45 p.m. Eastern Time today, June 23, 2010, though the USGS has not yet confirmed the quake.

Numerous reports flooded Twitter, including from the National Post in Toronto, which reported heavy shaking to its building about 30 seconds after similar reports from Ottawa.

The Globe and Mail is reporting on its mobile site that there are numerous reports of "unusual ground shaking in various parts of Ontario," felt as far away as Buffalo.

This is a developing story...

http://www.huffingtonpost.com/2010/06/2 ... 22783.html

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Wed Jun 23, 2010 11:08 am
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Post Re: 5.5 Toronto Ontario Earthquake
USGS is claiming the epicenter was just north of Ottawa :awe :scared

This was a VERY WIDE area folks, I am not sure if this is normal but we are taking a MINIMUM of 500 kms...

Its 540 kms from Toronto to Montreal and there are un confirmed reports that people in Windsor Ontario and that is an additional 340 kms :awe

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Wed Jun 23, 2010 11:17 am
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Post Re: 5.5 Toronto Ontario Earthquake
Holy smokes now they are saying it was felt as far away as Pensylvania?

Is this normal for a quake to be this wide spread?

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Wed Jun 23, 2010 11:26 am
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Post Re: 5.5 Toronto Ontario Earthquake
Strong earthquake hits Ontario, Quebec

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OTTAWA - A strong earthquake rattled Eastern Ontario and Western Quebec Wednesday afternoon.

The epicentre of the quake was at Val des Bois, Que., according the the United States Geological Survey. The quake measured 5.5 and occurred at a depth of 19 kilometres, the USGS said.

There were reports the temblor was felt as far away as Columbus, Ohio and Flint, Michigan.

Many downtown offices and apartment buildings were evacuated and people flooded into the street after the tremor shook the downtown area. At Laurier Avenue and Bank Street the Jackson Building was ordered completely evacuated.

People who milled in the street talked about what the earthquake had just interrupted in their lives. One person said it felt like a big truck rumbling past.

Windows were reported broken in the Rideau Centre and the Parliamentary Precinct was evacuated as was the city's office on Constellation Crescent, where it was reported that the nine-storey building could be felt to be swaying.

Emergency services were responding to multiple calls all over the city and reported that was everything was "haywire".

There were reports the temblor was felt as far away as Columbus, Ohio and Flint, Michigan.

The quake struck at about 1:45 p.m. Eastern Time and lasted about 20 seconds.


Witnesses reported that buildings in downtown Toronto were shaking from the quake.





© Copyright (c) The Ottawa Citizen

http://www.vancouversun.com/news/Earthq ... story.html

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Wed Jun 23, 2010 11:34 am
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Post Re: 5.5 Toronto Ontario Earthquake
Earthquake shakes central Canada

Toronto — Globe and Mail Update
Published on Wednesday, Jun. 23, 2010 1:46PM EDT

Last updated on Wednesday, Jun. 23, 2010 2:28PM EDT


.A magnitude 5.5 earthquake hit central Canada this afternoon, rattling buildings from Windsor to Montreal and several U.S. states.

The epicentre of the quake was in Quebec, 61 kilometres north of Ottawa, according to U.S. Geological Survey, and struck at 1:41 p.m.EDT.


Twitter users react to earthquake
Contacting Twitter...
Environment Minister Jim Prentice was doing an interview with CTV at its Ottawa bureau on the 14th floor of the World Exchange Plaza in downtown Ottawa when the tremour struck.

"I was on the air and suddenly my chair was moving," he said afterwards. "Fortunately I was at the end."

The sidewalks quickly filled with workers who decided to evacuate their buildings. Within minutes of the tremour, cellphone service in Ottawa was down, possibly because callers had overloaded the system, though the exact cause was not known.

The Globe's Ottawa bureau was evacuated at 1:43 p.m. The Toronto newsroom also shook.

Twitter users as far away as Springfield, Mass. and Traverse City, Mich. reported feeling tremors. A Globe reporter in Montreal said that city also shook.

There were unconfirmed reports of minor injuries and damage. A Toronto Police spokesperson said that there have been no reports of injuries in Toronto.

http://www.theglobeandmail.com/news/nat ... le1614941/

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Wed Jun 23, 2010 11:35 am
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Post Re: 5.5 Toronto Ontario Earthquake
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Wed Jun 23, 2010 11:36 am
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Post Re: 5.5 Toronto Ontario Earthquake

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Wed Jun 23, 2010 11:39 am
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Post Update
They are now saying it was 5.0 quake

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Wed Jun 23, 2010 11:57 am
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Post Re: 5.5 Toronto Ontario Earthquake
Quote:
[Comment From Andy Lang Andy Lang: ]
Felt it strongly here in Cleveland, Ohio (680 km from the epicenter). Office buildings downtown shook for more than a minute; a few were evacuated. The farthest report I've seen is from Dubuque, Iowa, more than 1200 km from the estimated center of the quake.

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Wed Jun 23, 2010 12:00 pm
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Post Re: 5.5 Toronto Ontario Earthquake
Magnitude 5.0 - ONTARIO-QUEBEC BORDER REGION, CANADA

Magnitude 5.0
Date-Time Wednesday, June 23, 2010 at 17:41:42 UTC
Wednesday, June 23, 2010 at 01:41:42 PM at epicenter
Time of Earthquake in other Time Zones

Location 45.862°N, 75.457°W
Depth 18 km (11.2 miles) set by location program
Region ONTARIO-QUEBEC BORDER REGION, CANADA
Distances 38 km (24 miles) N (356°) from Cumberland, Ontario, Canada
44 km (28 miles) NNE (21°) from Gatineau, Qu�bec, Canada
51 km (32 miles) NNE (26°) from Hull, Qu�bec, Canada
53 km (33 miles) NNE (21°) from OTTAWA, Ontario, Canada

Location Uncertainty horizontal +/- 2.3 km (1.4 miles); depth fixed by location program
Parameters NST=283, Nph=283, Dmin=148.6 km, Rmss=0.91 sec, Gp= 25°,
M-type=teleseismic moment magnitude (Mw), Version=8
Source USGS NEIC (WDCS-D)


Event ID us2010xwa7

http://earthquake.usgs.gov/earthquakes/ ... 10xwa7.php

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Wed Jun 23, 2010 12:32 pm
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Post Re: 5.5 Toronto Ontario Earthquake
Glad you're OK, L2L.

Having grown up in So California, I'm quite familiar with the feeling.

It is nerve racking, for sure.

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Wed Jun 23, 2010 12:41 pm
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Post Re: 5.5 Toronto Ontario Earthquake
Shawnna wrote:
Glad you're OK, L2L.

Having grown up in So California, I'm quite familiar with the feeling.

It is nerve racking, for sure.

Image


Thanks Shawnna, you must be laughing your ass off at me saying what a rookie, 5.0 earthquake, thats a walk in the park for you Cali folk :roflmao

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Wed Jun 23, 2010 1:27 pm
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Post Re: 5.5 Toronto Ontario Earthquake
Well - ya learn something new everyday! I had no idea that earthquakes east of the Rockies could be felt over a large area.
http://earthquake.usgs.gov/earthquakes/recenteqsus/Quakes/us2010xwa7.php#summary

Magnitude 5.0 - ONTARIO-QUEBEC BORDER REGION, CANADA
2010 June 23 17:41:41 UTC
Earthquake Summary
Tectonic Summary

The June 23, 2010 Ontario-Quebec border region earthquake occurred at 1:42 pm local (eastern) time about 60 km (38 miles) north of Ottawa, Ontario, Canada's capital city. The preliminary estimate of magnitude (M) is 5.0, at a depth of roughly 19 km (12 miles). These estimates may change as more data becomes available.

This earthquake occurred near the southern edge of the Western Quebec Seismic Zone. Earthquakes within this zone are mostly small. They tend to cluster in a wide area that is slightly elongated northwest-southeast. Historically, earthquakes in the Western Quebec Seismic Zone have caused damage roughly once a decade. Three or four smaller events each year are felt in the region but are generally too small to cause damage. The largest earthquakes known in this part of Canada occurred in 1935 (M6.1), about 250 km (150 miles) to the northwest of todays event, and in 1732 (M6.2), about 150 km (100 miles) to the east. The 1732 earthquake caused significant damage in Montreal.

Earthquakes of the size of todays event are uncommon east of the Rockies, but many have occurred since the arrival of European settlers three centuries ago. In eastern North America and geologically similar regions worldwide, M5.0 to M5.5 earthquakes typically cause light to moderate damage out to a few tens of kilometers (miles) from the epicenter, depending on the number of people and type of buildings near the epicenter. Typically these earthquakes are felt hundreds of kilometers (miles) away. Earthquakes of this size and depth are unlikely to rupture the Earth's surface, although exceptions are known.

The main faults near this earthquake zone trend northwest. These faults form the Ottawa graben and were most active several hundred million years ago. Some of the faults of the graben have been reactivated one or more times since then. The initial focal mechanism of todays earthquake suggests reverse faulting on a fault trending southeast-northwest. However, the size and depth of this earthquake make it uncertain whether the causative fault can be identified.


EARTHQUAKES IN THE WESTERN QUEBEC SEISMIC ZONE
People in the large Western Quebec seismic zone have felt small earthquakes and suffered damage from larger ones for three centuries. The two largest damaging earthquakes occurred in 1935 (magnitude 6.1) at the northwestern end of the seismic zone, and in 1732 (magnitude 6.2) 450 km (280 mi) away at the southeastern end of the zone where it caused significant damage in Montreal. Earthquakes cause damage in the zone about once a decade. Smaller earthquakes are felt three or four times a year.

Earthquakes east of the Rocky Mountains, although less frequent than in the west, are typically felt over a much broader region. East of the Rockies, an earthquake can be felt over an area as much as ten times larger than a similar magnitude earthquake on the west coast. A magnitude 4.0 eastern earthquake typically can be felt at many places as far as 100 km (60 mi) from where it occurred, and it infrequently causes damage near its source. A magnitude 5.5 eastern earthquake usually can be felt as far as 500 km (300 mi) from where it occurred, and sometimes causes damage as far away as 40 km (25 mi).

FAULTS
Earthquakes everywhere occur on faults within bedrock, usually miles deep. Most of the bedrock in the Western Quebec seismic zone was formed as several generations of mountains rose and were eroded down again over the last billion or so years.

At well-studied plate boundaries like the San Andreas fault system in California, often scientists can determine the name of the specific fault that is responsible for an earthquake. In contrast, east of the Rocky Mountains this is rarely the case. The Western Quebec seismic zone is far from the nearest plate boundaries, which are in the center of the Atlantic Ocean and in the Caribbean Sea. The seismic zone is laced with known faults but numerous smaller or deeply buried faults remain undetected. Even the known faults are poorly located at earthquake depths. Accordingly, few, if any, earthquakes in the seismic zone can be linked to named faults. It is difficult to determine if a known fault is still active and could slip and cause an earthquake. As in most other areas east of the Rockies, the best guide to earthquake hazards in the Western Quebec seismic zone is the earthquakes themselves.

:clap

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Wed Jun 23, 2010 2:48 pm
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Post Re: 5.5 Toronto Ontario Earthquake
Unusual place for an earthquake? L, maybe we could name this thread "Canadian EQ's"? or do you want to keep them separate? Just thinking about keeping track of trends.....


23-JUL-2010 17:24:21 46.50 -71.62 4.1 18.0 SOUTHERN QUEBEC, CANADA

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Fri Jul 23, 2010 2:04 pm
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Post Re: 5.5 Toronto Ontario Earthquake
rutsuyasun wrote:
L, maybe we could name this thread "Canadian EQ's"?



Done :wavey

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Post Re: Canadian Earthquakes
Glad you are OK L2, I grew up in SoCal as well and learned to sleep through anything less than a 4.0. The Eq's was the main reason I left.
M


Sat Jul 24, 2010 7:48 pm
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Post Re: Canadian Earthquakes
Mizar wrote:
Glad you are OK L2, I grew up in SoCal as well and learned to sleep through anything less than a 4.0. The Eq's was the main reason I left.
M


Good to see you back Mizar, been missing your Earthquake posts.

Been pretty busy from what I see but most of us have been too busy to report the rumblings...

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