Yes indeed--
we felt all of 'em...





____________

We had a little swarm.
My wife's pewter was down for maintenance for the first one (3.8).
I brought her back up and started qcnlive on both machines.
We then got a 4.0, a 2.5, and a 1.8--
thanx for all your good work...
____________

Everything was shaking--
boots included...
____________

Just had another 3.1--
both sensors triggered...
____________

I have a naive question. I personally detected all three Yorba Linda earthquakes yesterday, in one way or another. However, my laptop was closed (to protect it from kids). It wouldn't have been running BOINC/QCN while closed, right? If it had been running, how would I view the data so I could take a screen shot like the other users in this thread?

If your computer was on, and recorded a quake trigger; where the data lives depends on your OS.
In Windows XP64 it's in (C:)>Documents and Settings>All Users>Application Data>BOINC>projects>qcn.stanford.edu_qcnalpha>triggers.
In there lives a Compressed (zipped) file for each trigger which, when unzipped, reveals 4 SAC files: significance level, and 3 components of motion (vertical, and two horizontals).

You have to have another program to display these SAC files as a siesmogram. Those programs are also OS specific and 3 or 4 have been discussed in these Forums. There's a discussion going on now in the "Questions and Answers:Windows" Forum, and I've seen a Unix/Linux SAC file reader mentioned somewhere.

==============================

The USGS dropped that 3.1down to a 3.0--
and we've had a few (est. M2-3+) that don't show up in the USGS data...


http://quake.usgs.gov/recenteqs/FaultMaps/118-34.htm
____________

GG :)

Addendumb...
...there's also zipped SAC files in (64bitXP) (C:)>Documents and Settings>data.
I believe these are the files that Carl warned about that are created every 10 minutes qcnLive is running--
and have to be deleted if disk space is critical...

http://quake.usgs.gov/recenteqs/Quakes/quakes0_fault.htm

=================================================================
____________

---------------------------------------------
I didn't feel it--
but it appears that I recorded a 1.6...
---------------------------------------------

6802933 qcne_sc300_sta000_021488_0 12 Jun 2009 3:36:17 UTC 12 Jun 2009 3:36:22 UTC --- 0 3.096091 0.185529 33.881396 -117.791832 0.02 0 JoyWarrior 24F8 USB 4.82 83.83 47432.04

======================================================================

== PRELIMINARY EARTHQUAKE REPORT ==
Southern California Seismic Network: a cooperative project of
U.S. Geological Survey, Pasadena California
Caltech Seismological Laboratory, Pasadena, California

Version #1: This report supersedes any earlier reports of this event.
This is a computer-generated message. This event has not yet been reviewed by a seismologist.

A micro earthquake occurred at 08:36:04 PM (PDT) on Thursday, June 11, 2009.
The magnitude 1.6 event occurred 6 km (3 miles) SW of Yorba Linda, CA.
The hypocentral depth is 13 km ( 8 miles).


Magnitude 1.6 - local magnitude (Ml)
Time Thursday, June 11, 2009 at 08:36:04 PM (PDT)
Friday, June 12, 2009 at 03:36:04 (UTC)
Distance from Yorba Linda, CA - 6 km (3 miles) SW (227 degrees)
Fullerton, CA - 6 km (4 miles) ESE (106 degrees)
Anaheim, CA - 6 km (4 miles) NE (54 degrees)
Los Angeles Civic Center, CA - 42 km (26 miles) ESE (122 degrees)
Coordinates 33 deg. 51.3 min. N (33.854N), 117 deg. 51.3 min. W (117.856W)
Depth 12.6 km (7.8 miles)
Quality Fair
Location Quality Parameters Nst=027, Nph=027, Dmin=7 km, Rmss=0.27 sec, Erho=0.9 km, Erzz=1.1 km, Gp=180 degrees
Event ID# ci14472528
Additional Information map

http://quake.usgs.gov/recenteqs/FaultMaps/118-34.htm
____________

The "USGS" changed the location again:

http://quake.usgs.gov/recenteqs/Quakes/ci14472528.htm

===================================

== PRELIMINARY EARTHQUAKE REPORT ==
California Integrated Seismic Net
USGS/ Caltech/ CGS/ UCB/ UCSD/ UNR
Version #1: This report supersedes any earlier reports of this event.
This is a computer-generated message. This event has not yet been reviewed by a seismologist.
A microearthquake occurred at 8:36:04 PM (PDT) on Thursday, June 11, 2009.
The magnitude 1.6 event occurred 3 km (2 miles) S of Placentia, CA.
The hypocentral depth is 13 km ( 8 miles).


Magnitude 1.6 - local magnitude (ML)
Time Thursday, June 11, 2009 at 8:36:04 PM (PDT)
Friday, June 12, 2009 at 3:36:04 (UTC)
Distance from Placentia, CA - 3 km (2 miles) S (181 degrees)
Anaheim, CA - 4 km (2 miles) ENE (57 degrees)
Villa Park, CA - 6 km (4 miles) NW (316 degrees)
Yorba Linda, CA - 7 km (4 miles) WSW (240 degrees)
Los Angeles Civic Center, CA - 42 km (26 miles) ESE (122 degrees)

Coordinates 33 deg. 51.3 min. N (33.854N), 117 deg. 51.3 min. W (117.856W)
Depth 12.6 km (7.8 miles)
Location Quality Fair
Location Quality Parameters Nst= 27, Nph= 27, Dmin=7 km, Rmss=0.27 sec, Erho=0.9 km, Erzz=1.1 km, Gp=180 degrees
Event ID# ci14472528
Additional Information map with fault names
Google Earth KML (Requires Google Earth.)
Waveforms

==========================================

Another in the long line of disappearing Yorba Linda earthquakes...

Now, after being reviewed by seismologists, they show 2 different 1.5 quakes (with different Event ID#'s) at the exact same time, at different depths!!!

== PRELIMINARY EARTHQUAKE REPORT ==
California Integrated Seismic Net
USGS/ Caltech/ CGS/ UCB/ UCSD/ UNR
Version #O: This report supersedes any earlier reports of this event.
This event has been reviewed by a seismologist.
A microearthquake occurred at 8:36:05 PM (PDT) on Thursday, June 11, 2009.
The magnitude 1.5 event occurred 1 km (1 miles) WSW of Yorba Linda, CA.
The hypocentral depth is 6 km ( 4 miles).


Magnitude 1.5 - local magnitude (ML)
Time Thursday, June 11, 2009 at 8:36:05 PM (PDT)
Friday, June 12, 2009 at 3:36:05 (UTC)
Distance from Yorba Linda, CA - 1 km (1 miles) WSW (250 degrees)
Placentia, CA - 5 km (3 miles) E (91 degrees)
Villa Park, CA - 7 km (5 miles) N (6 degrees)
Anaheim, CA - 9 km (6 miles) ENE (58 degrees)
Los Angeles Civic Center, CA - 45 km (28 miles) ESE (115 degrees)

Coordinates 33 deg. 52.9 min. N (33.882N), 117 deg. 48.2 min. W (117.803W)
Depth 5.7 km (3.5 miles)
Location Quality Good
Location Quality Parameters Nst=016, Nph=016, Dmin=6 km, Rmss=0.11 sec, Erho=0.6 km, Erzz=2.6 km, Gp=133.2 degrees
Event ID# ci14472536
Additional Information map with fault names
Google Earth KML (Requires Google Earth.)


==================================
== PRELIMINARY EARTHQUAKE REPORT ==
California Integrated Seismic Net
USGS/ Caltech/ CGS/ UCB/ UCSD/ UNR
Version #M: This report supersedes any earlier reports of this event.
This event has been reviewed by a seismologist.
A microearthquake occurred at 8:36:05 PM (PDT) on Thursday, June 11, 2009.
The magnitude 1.5 event occurred 3 km (2 miles) ESE of Placentia, CA.
The hypocentral depth is 10 km ( 6 miles).


Magnitude 1.5 - local magnitude (ML)
Time Thursday, June 11, 2009 at 8:36:05 PM (PDT)
Friday, June 12, 2009 at 3:36:05 (UTC)
Distance from Placentia, CA - 3 km (2 miles) ESE (102 degrees)
Yorba Linda, CA - 3 km (2 miles) WSW (248 degrees)
Villa Park, CA - 7 km (4 miles) N (354 degrees)
Orange, CA - 8 km (5 miles) N (9 degrees)
Los Angeles Civic Center, CA - 44 km (27 miles) ESE (117 degrees)

Coordinates 33 deg. 52.6 min. N (33.876N), 117 deg. 49.2 min. W (117.819W)
Depth 10.3 km (6.4 miles)
Location Quality Fair
Location Quality Parameters Nst= 20, Nph= 20, Dmin=6 km, Rmss=0.16 sec, Erho=0.7 km, Erzz=1.4 km, Gp=154.8 degrees
Event ID# ci14472528
Additional Information map with fault names
Google Earth KML (Requires Google Earth.)
Waveforms


http://quake.usgs.gov/recenteqs/FaultMaps/118-34.htm

> (Message 1700) geo...
"I didn't feel it--
but it appears that I recorded a 1.6..."

> (Message 1703) Carl
"usually our "effective minimum" is a mag 3.0"

> (Message 1707) geo...
"Now, after being reviewed by seismologists, they show 2 different 1.5 quakes at the exact same time"

< two 1.5's at the same time = 3.0???<insert smileyface...>

http://www.latimes.com/news/la-me-quakecatchers12-2010mar12,0,7909320,full.story...
____________

There's a very interesting article in the local paper today..
The headline reads........

Belton woman: Japan earthquake affected water level of area pond.

Then the article...........

Property owner Betty Rhoads and her husband have lived in a house off I-35 for more than 40 years.

The property is located over the Edwards Aquifer.

Years ago, Rhoads said her husband hopped on a tractor and dug out a marshy area located between the front of the house and the interstate.

Ever since then the family has enjoyed a pond in front of their house.
During the summer, the water level typically recedes but it always comes back up when it rains.

The morning of March 11 was different than any other, Rhoads said, explaining that when she awoke and started brewing coffee she noticed that without the benifit of rain, the pond had gained about a foot overnight.

The oddity remained a mystery.

A story in the Telegram seemed to shed light.
The story was about how a monitor in the Edwards Aquifer in Bexar County registered an anomaly about 15 minutes after the 9.0 earthquake that rocked Japan.

Underground water in the aquifer "sloshed around like water in a bucket" for nearly two hours, Roland Ruiz, assistant manager of Edwards Aquifer Authority in Bexar County, said.

The undulations were measured at about 12 inches during the height of the abnormal readings.

"You don't see the under normal conditions", Ruiz said last month.

"There has to be a catalyst to make that happen".

Ruiz explained that the aquifer's 24-hour monitor has recorded similar undulations after large earthquakes around the world.
The question is did an earthquake with an epicenter off the coast of Japan more than 9000 miles away, cause the water level in the pond to rise about a foot overnight without the benifit of rain.


Email today--
from a friend in Texas...

-------------------------

[On this date in 1906 an earthquake and fire destroyed much of San Francisco, California]
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