View Full Version : Northridge Earthquake 1994 History


VansTripp
December 24th, 2004, 12:07 AM
It have been nearly 11 years after Northridge Earthquake. It time for history. :cheers:

TIME January 17, 1994 / 4:30:55 am PST
LOCATION 34° 12.80' N, 118° 32.22' W 20 miles west-northwest of Los Angeles 1 mile south-southwest of Northridge
MAGNITUDE MW6.7
TYPE OF FAULTING blind thrust - ANIMATION
FAULTS INVOLVED Northridge Thrust (also known as Pico Thrust) several other faults experienced minor rupture, rupture during large aftershocks, or triggered slip
DEPTH 18.4 km
http://www.data.scec.org/chrono_index/images/blindani.gif

At 4:30 am, on January 17, 1994, residents of the greater Los Angeles area were rudely awakened by the strong shaking of the Northridge earthquake. This was the first earthquake to strike directly under an urban area of the United States since the 1933 Long Beach earthquake.

The earthquake occurred on a blind thrust fault, and produced the strongest ground motions ever instrumentally recorded in an urban setting in North America. Damage was wide-spread, sections of major freeways collapsed, parking structures and office buildings collapsed, and numerous apartment buildings suffered irreparable damage. Damage to wood-frame apartment houses was very widespread in the San Fernando Valley and Santa Monica areas, especially to structures with "soft" first floor or lower-level parking garages. The high accelerations, both vertical and horizontal, lifted structures off of their foundations and/or shifted walls laterally.


http://autoinfo.smartlink.net/quake/Freeway.jpg
http://autoinfo.smartlink.net/quake/Quake.jpg
http://autoinfo.smartlink.net/quake/I5slice.gif
http://autoinfo.smartlink.net/quake/valencia.jpg
http://autoinfo.smartlink.net/quake/Officez.jpg
http://autoinfo.smartlink.net/quake/kitchen-.jpg
http://autoinfo.smartlink.net/quake/10fwy.jpg
http://autoinfo.smartlink.net/quake/Column.jpg
http://autoinfo.smartlink.net/quake/Garage.jpg
http://autoinfo.smartlink.net/quake/Broadway.jpg
http://autoinfo.smartlink.net/quake/Flatcar.jpg
http://autoinfo.smartlink.net/quake/Noside.jpg
http://autoinfo.smartlink.net/quake/Fire.jpg

Source: http://autoinfo.smartlink.net/quake/quake.htm

http://www.data.scec.org/chrono_index/images/nrhosp.gif
http://www.data.scec.org/chrono_index/images/ncsun2.gif
http://www.data.scec.org/chrono_index/images/ncsun1.gif
http://www.data.scec.org/chrono_index/images/tiltapt.gif
http://www.data.scec.org/chrono_index/images/north118.gif
http://www.data.scec.org/chrono_index/images/nrkaiser.jpg
http://www.data.scec.org/chrono_index/images/nrfire.gif
http://www.data.scec.org/chrono_index/images/nrtilted.gif
http://www.data.scec.org/chrono_index/images/nrrent.gif
http://www.data.scec.org/chrono_index/images/carsqsh.gif
http://www.data.scec.org/chrono_index/images/nrbrick.gif
http://www.data.scec.org/chrono_index/images/northtop.gif
http://www.data.scec.org/chrono_index/images/nri10.gif

More Information:
Despite the losses, gains made through earthquake hazard mitigation efforts of the last two decades were obvious. Retrofits of masonry building helped reduce loss of life, hospitals suffered less structural damage than in 1971 San Fernando earthquake, and emergency response was exemplary. The Northridge earthquake proved that preparing for earthquakes CAN greatly reduce the risk.

The earthquake brought home several important lessons. When earthquakes occur directly beneath a city, it will be subjected to ground motions with peak accelerations approaching the force of gravity, exceeding the levels of shaking anticipated by building codes. Systems of concealed faults under the Los Angeles area are more complex than previously thought. The significant fracturing of welds in steel frame buildings was unexpected because of the ductility of steel. Understanding the cause and correcting the problem will be essential to continue building in earthquake prone regions.

Source: http://www.data.scec.org/chrono_index/northreq.html

P.S. Chicgoian nothing know about earthquake MAGNITUDE so one guy said Los Angeles only have 8.5 magnitude then he's WRONG. Los Angelian really know about earthquake!!! :cheers:

Imperfect Ending
December 24th, 2004, 11:38 AM
I was asleep when it happened :)

I do remember this thing

http://www.data.scec.org/chrono_index/images/northtop.gif

its up again :)

so is this thing..
http://www.data.scec.org/chrono_index/images/nrbrick.gif

strange though.. today I just noticed the bakery and I was wandering if a letter was missing from the name ARA

LosAngelesSportsFan
December 24th, 2004, 01:26 PM
has it really been 11 years?? jesus time flys!!

AzN8oi
December 24th, 2004, 01:53 PM
I remember this... I was in bed, and I was lying awake for about 30 seconds, when coincidentally all hell breaks loose. It was QUITE interesting.

sequoias
December 24th, 2004, 08:08 PM
that quake is much more destructive than the one here in Seattle back in 2001. It's on the similar ritcher scale, tho the one in northridge was more shallow, the one we had here in Seattle was 30-35 miles deep underground in puget sound (inland sea of Washington state)

chicagogeorge
December 24th, 2004, 08:27 PM
[/QUOTE]P.S. Chicgoian nothing know about earthquake MAGNITUDE so one guy said Los Angeles only have 8.5 magnitude then he's WRONG. Los Angelian really know about earthquake!!! :cheers:[/QUOTE]


I was being sarcastic in response to another post. You're right, Chicagoans don't know about earthquakes. They don't happen here, but they can occur down by St. Louis. Actually I was in an earthquake in 1999, in Athens Greece. It was a 5.7, not that big but still scrared the shit out of me! A week before the earthquake in Athens, a huge earthquake hit Turkey. I think that one triggered the one in Athens.

http://www.geocities.com/Athens/Forum/2556/k1.jpg
http://geocities.com/Athens/Forum/2556/photos/strepsi1.jpg
http://www.cnn.com/WORLD/europe/9909/07/greece.quake.04/greece.athens.jpg
http://www.photius.com/thus/refugees4.jpg
http://www.endtimeprophecy.net/~tttbbs/EPN-1/Images-Sorrows/earthq10.jpg
http://www.mat.ua.pt/delfim/images/Greece/Athens/earthquake2.jpg

http://image.guardian.co.uk/sys-images/Guardian/Documentaries/Maps/1999/08/17/turkey_quake_map.gif
http://gbgm-umc.org/umcor/emergency/images/turkey2.jpg
http://news.bbc.co.uk/olmedia/790000/images/_793464_quake300.jpg

VansTripp
December 24th, 2004, 10:08 PM
It did happened to me when I was 6 years old. I was sleeping in bed then I start feel serious quake. My new TV with closed captioning from last Christmas in 1993, it is totally damaged. I don't went to school for almost 1 weeks because highway was huge damaged. I almost got killed by hit on wall. I have big bruise on arm. Some nice modern apartment have been damaged then must replace same project too. Earthquake is no funny for our life. It seem much better after earthquake.

Imperfect Ending
December 24th, 2004, 11:43 PM
Do you all notice that most big earthquakes occur on Fridays?

VansTripp
December 25th, 2004, 01:00 AM
Do you all notice that most big earthquakes occur on Fridays?

Nah, Just small earthquake.

Imperfect Ending
December 25th, 2004, 05:36 AM
well.. noticable ones

Imperfect Ending
January 18th, 2005, 11:08 AM
Happy 11th year anniversary!!!

even though it was yesterday

squeemu
January 18th, 2005, 09:08 PM
It's weird that the Northridge earthquake and the Kobe earthquake both have the same anniversary, they're just one year apart.