STORM2K

Magnitude 7.4 - OFF THE COAST OF NORTHERN CALIFORNIA
2005 June 15 02:50:56 UTC
Preliminary Earthquake Report
West Coast and Alaska Tsunami Warning Center/NOAA/NWS

A major earthquake occurred at 02:50:56 (UTC) on Wednesday, June 15, 2005. The magnitude 7.4 event has been located OFF THE COAST OF NORTHERN CALIFORNIA. (This event has been reviewed by a seismologist.)




Magnitude 7.4
Date-Time Wednesday, June 15, 2005 at 02:50:56 (UTC)
= Coordinated Universal Time
Tuesday, June 14, 2005 at 6:50:56 PM
= local time at epicenter

Location 41.288°N, 125.710°W
Depth 40 km (24.9 miles) set by location program
Region OFF THE COAST OF NORTHERN CALIFORNIA
Distances 134 km (83 miles) W (281°) from Trinidad, CA
136 km (84 miles) WSW (248°) from Crescent City, CA
137 km (85 miles) WNW (282°) from Westhaven-Moonstone, CA
472 km (293 miles) NW (311°) from Sacramento, CA

Location Uncertainty Error estimate not available
Parameters Nst=036, Nph=036, Dmin=160.5 km, Rmss=1.05 sec, Gp=198°,
M-type=moment magnitude (Mw), Version=1
Source West Coast and Alaska Tsunami Warning Center/NOAA/NWS

Event ID at00000363


It happen close to southern Oregon or northern California!!! Wow hope theres no Tsunumi's!!!

Just heard that(7.0)

http://earthquake.usgs.gov/recenteqsww/ ... usziae.htm

Tsunami Warning has been cancelled. VERY lucky that was offshore with no Tsunami. Damage would have been extensive in a populated area.

Northridge quake was a 6.7 and the Loma Prieta quake during the World Series was a 6.9

WOW...

Also see that a precautionary tsunami warning had been issued for the entire west coast of the US.

http://quake.wr.usgs.gov/waveforms/heli ... 21212.html

This *really* narrows it down...

...A TSUNAMI WARNING IS IN EFFECT FOR THE COASTAL AREAS
FROM THE CALIFORNIA-MEXICO BORDER TO THE NORTH TIP OF
VANCOUVER I.-BC...

LOL

If this where to happen in a city thousands would die. So this is very big. Wow

That's very scary news....I'm hopeful no tsunami occurs...7.4 is quite a quake

In addition to Becky (sis) & her family in the Portland burbs, Dave's (bro in law) mom & dad live in Medford...his older brother and family near Grants Pass, and his oldest brother & sis in law live in Portland but have a beach house near Lincoln City.....so anything happening close to Oregon gets my undivided attention..

I thought sis was scared of tornadoes until hearing the panic in her voice a few years ago after experiencing her first earthquake (felt jolts from a large quake near Tacoma, WA); it scared the daylights out of her....far worse than any storm ever has.

Matt-hurricanewatcher wrote:If this where to happen in a city thousands would die. So this is very big. Wow

Actually... a big Tsunami is NOT likely with a 7.0, certainly not one like in Asia last year. Local rises in water are possible. This seems to be more of a cautionary note after the disaster in December(people going to the beach etc.)

I just spoke to sis by phone, and she is fine, but get this: David's brother, sis in law, and two young children were at their beach house, and have been evacuated.....

Dave said his brother is okay (spoke to him via cellphone)...but the evacuation was a big hassle (he and his wife had just put their babies to bed for the evening).

PW

SouthernWx wrote:I just spoke to sis by phone, and she is fine, but get this: David's brother, sis in law, and two young children were at their beach house, and have been evacuated.....

Dave said his brother is okay (spoke to him via cellphone)...but the evacuation was a big hassle (he and his wife had just put their babies to bed for the evening).

PW

Crescent City, CA is reportedly evacuating some residents close to the water. No waves reported so far... if it were to hit, it would first hit within minutes in Northern California and then gradually spread north and south away from there.

I can understand about that being a hassle Perry. You just do not want to awaken sleeping children, unless you have to. Under these circumstances, it was necessary! If something terrible did happen, they'd be glad they left. Still, it's not easy I'm sure evacuating with small children. Thankfully I've never had to do that. We had a chemical spill nearby on an interstate once. But it was a few miles away and we were okay. For about 5 minutes there though we weren't sure if we needed to leave. And if we had to, it was an immediate decision. We couldn't have taken anything with us but the clothes on our backs and flee in our cars.

Mary

Still nothing about any damage..Maybe got lucky it being off shore.

feederband wrote:Still nothing about any damage..Maybe got lucky it being off shore.

It looks like it was canceled (the warning).

Our local news is reporting that threat of tsunami is over for our coast...now a quake that size would have scared the daylights out of me...thank GOD it was so far offshore...

Minutes after the warning was issued people rushed to the ocean in hopes of seeing the tsunami. Good grief. Can you believe this?

Magnitude 7.2 OFF COAST OF NORTHERN CALIFORNIA
Wednesday, June 15, 2005 at 02:50:54 UTC

Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver



This earthquake occurred in a deformed section of the southernmost Juan de Fuca plate that is commonly called the Gorda plate. The epicenter lies to the west of the Cascadia Subduction Zone. Light shaking from this earthquake was widely felt along the northern California - southern Oregon coastline.

Preliminary analysis of the quake indicates that it resulted from slip on a NE striking, left-lateral, strike-slip fault; this type of mechanism has been documented for other earthquakes having locations in the interior of the Gorda plate. This earthquake did not produce a tsunami. Earthquakes with strike-slip mechanisms are less likely to produce tsunamis because they cause relatively little vertical ground displacement.

Earthquakes are common in the Gorda plate, which is subjected to north-south compression due to the north-west moving Pacific Plate that collides with the southern boundary of the Gorda Plate along the east-west Mendocino Fracture Zone. This quake occurred approximately 67 miles west of the epicenter of the November 8, 1980 7.2M earthquake. There have been 3 other quakes of magnitude M>6 that have occurred with 50 miles radius of the epicenter of this quake (August 16, 17 1991 and July 24 1996).