Virginia Earthquakes?? - DPChallenge Forums

08/23/2011 02:15:12 PM · #2

see thread:

I think I had an earthquake!

Phone problems here. I can't seem to call out to anyone, but my husband can call me.

Cell phone and regular phone seem to be having problems.

glad2badad

Apple iPhone 16 Pro

Lensbaby Sweet 35 Optic

08/23/2011 05:43:01 PM · #3

Ok. Just got home from work. We live about 25-30 miles from the epicenter. Appears that the house did quite a bit of shaking but no major damage. Lots (LOTS) of stuff on the floor!!! Photos came off the walls, the bookcases cleaned out, the medicine cabinets cleared their contents onto the sinks and floor, and the top shelf in the closets are a bit lighter now. My wife opened the refrigerator and stuff came tumbling out, so we've checked the remaining kitchen cupboards carefully to align anything else that wants to escape.

I'm getting ready to head out to the garage/storage shed (tons of stuff on shelves and in the rafters out there. :-{ Then off to the woodshop - eek! Afraid to look. I have lumber stored on shelves along with paint, glue, nails & screws, etc...on various shelves and cabinets. Wish me luck.

Traffic was a bear getting home. Nothing bad to report, which is good...our building shook for a bit and it was all over. I'm on one of the lower floors and I can imagine the folks up on 15 had a little ride. :-)

08/23/2011 06:45:33 PM · #4

Originally posted by glad2badad:

WOW!!!!! I hope your garage isn't painted a new color.....

glad2badad

Apple iPhone 16 Pro

Lensbaby Sweet 35 Optic

08/23/2011 09:43:50 PM · #5

Minor mess. Nothing major to cleanup. We did have a nice aftershock about 90 minutes ago that chased us out of the house. According to reports it was a 4.2. Kids are a bit nervous about going to sleep.

08/23/2011 09:47:48 PM · #6

Originally posted by glad2badad:

I had thought about that (aftershocks)....will probably keep up for a few days right?

glad2badad

Apple iPhone 16 Pro

Lensbaby Sweet 35 Optic

08/23/2011 09:49:45 PM · #7

Originally posted by Ja-9:

Originally posted by glad2badad:
Minor mess. Nothing major to cleanup. We did have a nice aftershock about 90 minutes ago that chased us out of the house. According to reports it was a 4.2. Kids are a bit nervous about going to sleep.

I had thought about that (aftershocks)....will probably keep up for a few days right?

Crud, I hope not! Maybe someone with more earthquake knowledge will chime in.

Canon EF 70-200mm f/4.0L USM

08/23/2011 09:53:52 PM · #8

some place on the internet I saw a link that shows where the latest earthquakes were happening around the world...you would be surprised where and how often the occur...

I'm sure someone will know how to dig up that link...

karmat

Apple iPhone 7

08/23/2011 11:06:23 PM · #9

earthquakes

PapaBob

Sony Alpha a7 IV

08/23/2011 11:28:38 PM · #10

I used to run a paint warehouse in California, we just felt the earth quakes helped keep the paint mixed. I was amazed the first large earth quake I was in, the amount of movement and the duration of the event was spectacular. We lived about 60 miles from a 7.3 epicenter and the ground moved for about 45 seconds, 45 seconds does not sound all that long unless you think about the earth shifting below your feet for that amount of time. I find it fascinating the earth's crust can move like liquid.

PapaBob

Sony Alpha a7 IV

08/23/2011 11:37:34 PM · #11

Originally posted by glad2badad:

Originally posted by Ja-9:

Originally posted by glad2badad:
Minor mess. Nothing major to cleanup. We did have a nice aftershock about 90 minutes ago that chased us out of the house. According to reports it was a 4.2. Kids are a bit nervous about going to sleep.

I had thought about that (aftershocks)....will probably keep up for a few days right?

Crud, I hope not! Maybe someone with more earthquake knowledge will chime in.

Aftershocks are typically but not always smaller than the first earth quake. The 7.3 we went through in California had aftershocks in the range of 5.8 down to ones that were not even felt and of course out there it never really totally stops shaking.

Message edited by author 2011-08-23 23:38:14.

Canon EF 300mm f/2.8L IS USM

08/23/2011 11:43:50 PM · #12

Originally posted by karmat:

earthquakes

see ask and you shall receive...I need to save that sight...

Skip

Canon EOS-1D X

08/24/2011 07:37:59 AM · #13

i was hoping to find online the surveillance footage shown on the news last night. that was pretty insane.

there also was a clip of an interview with the governor who relayed that when it hit, he was in richmond, on the phone with his who was in charlottesville. he said, "hey, wait a minute, something's happening" and his son responded, "hey, i'm feeling it, too!" pretty wild, they're being 70 miles apart. i wonder how many others had similar experiences?

Pug-H

Pentax K10D

Sigma 28-80mm f/3.5-5.6 Aspherical HF for Pentax

08/24/2011 08:35:42 AM · #14

I have this site linked to my FB page, so I get regular notices about earthquakes around the world. (There have been lots of tremors here in Japan this week.)

So, how about this idea? - The ice caps and glaciers melt, and the melt water flows around the world. The extra mass of water over parts of the crust that aren't accustomed to such weight causes unusual stress on those parts, resulting in earthquakes and more volcanic activity.

dacrazyrn

Nikon D300

08/24/2011 05:38:11 PM · #15

Funny. The VA 5.8 is VERY DANGEROUS and the CO 5.3 is moderately dangerous. Oh yeah, that's right! No ones heard! There was an earthquake in CO 5 minutes prior to the one in VA. Apparently the apocalypse can only happen east of the Mississippi. Love National news centers!! Hype it up some more

vawendy

Sony Alpha 1

Canon EF 85mm f/1.2L II USM

08/24/2011 05:56:07 PM · #16

Originally posted by dacrazyrn:

The scale is a logarithmic scale....

Message edited by author 2011-08-24 17:56:51.

Cory

Canon EOS-1D Mark IV

08/24/2011 05:57:05 PM · #17

Originally posted by vawendy:

Originally posted by dacrazyrn:
Funny. The VA 5.8 is VERY DANGEROUS and the CO 5.3 is moderately dangerous. Oh yeah, that's right! No ones heard! There was an earthquake in CO 5 minutes prior to the one in VA. Apparently the apocalypse can only happen east of the Mississippi. Love National news centers!! Hype it up some more

The scale is a logrythmic scale....

I'm thinking you probably should have explained yourself a bit more on that.

BrennanOB

Canon EOS-1D Mark II

Tamron SP AF 28-75mm f/2.8 XR Di for Canon

08/24/2011 06:24:04 PM · #18

Originally posted by Cory:

I'm thinking you probably should have explained yourself a bit more on that.

Two points from the land where earthquakes are a bit more common.

The Richter scale is a base-10 logarithmic scale obtained by calculating the logarithm of the amplitude of waves measured by a seismograph. Simply put, a 7.0 event is ten times as strong as a 6.0. The difference between a 5.3 and a 5.8 is a 5 times stronger jolt. Big difference.

The second point is structural cohesion. In California or Japan a 5.8 is a minor jiggle. Our buildings and roads are built for them and more. Our book cases are tied to the wall, we even hang our pictures on the wall differently. In Virginia none of this is true. So what might seem to be a mid sized quake can have much more dire results than might be expected.

Message edited by author 2011-08-24 23:11:21.

antares1966

Nikon D7200

Nikon AF-S DX Zoom-Nikkor 18-55mm f/3.5-5.6G VR

08/25/2011 02:07:10 AM · #19

Another lifelong West Coaster here--

Another point about the VA quake is that it was quite shallow, about 3.5 miles deep, so a lot more of the kinetic energy could make it to the surface and spread.

The last earthquake I was in was the Nisqually in Washington State, that was a 6.8 but 32 miles deep, luckily for us, the depth helped keep the damage to a lot lower level than it could have been. In contrast, the Northridge quake of 1994 was a 6.7 but only 10 miles deep, and was devastating.

I have to imagine there's an awful lot of very old architecture back East (at least by American standards), and even if retrofitted, is not built to West Coast standards simply because a quake of the magnitude just experienced is a once every century or two event.

Art Roflmao

Canon EOS-6D Mark II

Canon EF 24-105mm f/4.0L IS

08/25/2011 02:17:12 AM · #20

I grew up in the Bay Area - experienced lots of quakes. Went to boot camp in San Diego and we had a 5.4 quake and most of the guys (from all over the country) were traumatized. LOL

In 1989, I was living just north of San Francisco, but went to visit my GF in Colorado when the big (6.9) quake hit. In 2001, I was living here in Seattle, but was working on a project in the Bay Area when the Seattle quake hit (6.8). Earthquakes fear me.

GeneralE

Canon PowerShot S3 IS

Canon 12x IS USM (S3 IS built-in Lens) -- 36-432mm (35mm EQ)

08/25/2011 02:27:42 AM · #21

Originally posted by BrennanOB:

Originally posted by Cory:
I'm thinking you probably should have explained yourself a bit more on that.

Two points from the land where earthquakes are a bit more common.

The Richter scale is a base-10 logarithmic scale obtained by calculating the logarithm of the amplitude of waves measured by a seismograph. Simply put, a 7.0 event is ten times as strong as a 6.0. The difference between a 5.3 and a 5.8 is a 5 times stronger jolt. Big difference.

The second point is structural cohesion. In California or Japan a 5.8 is a minor jiggle. Our buildings and roads are built for them and more. Our book cases are tied to the wall, we even hang our pictures on the wall differently. In Virginia none of this is true. So what might seem to be a mid sized quake can have much more dire results than might be expected.

Another difference in the effect of similarly-sized quakes is the structure of the underlying rock. On the West coast, the ground is fragmented by numerous faults, which tend to allow the ground to absorb some of the energy as the waves travel through the earth. On the East coast, the bedrock layers are more solid and contiguous, allowing the waves to both travel farther and to create more movement (and possible damage) as they pass through. The Virginia quake was felt over 500 miles away, in Boston and in Ohio, as well as the other places mentioned.

dacrazyrn

Nikon D300