The Associated Press released a news story stating that a 3.2 magnitude earthquake occurred 13 miles north of Palm Springs on Sunday September 25. The fact of the matter is that no such quake occurred.
What did happen was what is called a "teleseism". Teleseisms are seismic waves caused by distant earthquakes. In this case, the teleseisms were caused by the 7.5 earthquake in Peru, which occurred several minutes before the teleseisms arrived in Southern California.
The Southern California Seismic Network's automatic earthquake detection system mistakenly thought the waves were those of a small local quake. Those who have pagers connected to the SCSN (Caltech/USGS employees, first responders, utility companies, and media) received a page (or automatic email) for a M3.2 quake near Desert Hot Springs at that time. As it turns out, the SCSN Duty Seismologist removed the event from the Simpson Map (the California earthquake map).
All earthquakes that occur are reviewed by a human. The automatic detection system is not perfect and sometimes mis-reports earthquakes.
Associated Press writers released this story without confirming that a quake actually occurred.
The quake in question was removed from the system within just a few minutes. Yet the news story lives on. Still, no reports of damage or injuries....
The earthquake that occurred 18 miles North of Tehachapi, California on September 24th has been upgraded from a magnitude of 3.5 to 3.6.
This is not a significant change. The adjustment came after several standard reviews. Many adjustments to magnitude, depth, location and time of occurrence, are made to all earthquakes. Reviews and adjustments can go on for days, weeks and sometimes months, depending on the size of the quake.
This earthquakes depth was also adjusted from 6.3km to 6.0km.
This is not a significant change. The adjustment came after several standard reviews. Many adjustments to magnitude, depth, location and time of occurrence, are made to all earthquakes. Reviews and adjustments can go on for days, weeks and sometimes months, depending on the size of the quake.
This earthquakes depth was also adjusted from 6.3km to 6.0km.
The country has approved setting up a tsunami warning system in the Indian Ocean at a cost of Rs 125 crore, a former official of the Ocean Development department said on Friday.India has decided to set up the Indian Ocean Global Ocean Observation System (IO-GOOS) connecting all seismic stations to share tsunami related information, former Secretary of the department Dr Harsh K Gupta said. Pointing out that it was essential to record occurrence of a tsunami, Gupta told an international seminar on 'Natural Hazards - Disaster Mitigation' that sensors would be planted at the bottom of the Indian Ocean by September 2007. Read More ....
Source: Press Trust India via HindustanTimes
Source: Press Trust India via HindustanTimes
A moderate 4.7 earthquake shook the Mettler California area on September 22. The quake was felt as far away as Orange County to the South and Fresno to the North. The quake caused minor merchandise damage to some local shops, but no injuries were reported.
A 3.4 foreshock preceded the 4.7 mainshock by forty-four seconds. A robust aftershock sequence followed. Eight aftershocks above 3.0 were recorded within 14 hours.
This particular area is known to have earthquakes on occasion. Earlier this year A 5.2 earthquake and a 4.1 quake struck an area about 10 miles west of this current sequence.
In 1952 the Kern County 7.5 Quake was centered less than five miles from the location of this quake.
A 3.4 foreshock preceded the 4.7 mainshock by forty-four seconds. A robust aftershock sequence followed. Eight aftershocks above 3.0 were recorded within 14 hours.
This particular area is known to have earthquakes on occasion. Earlier this year A 5.2 earthquake and a 4.1 quake struck an area about 10 miles west of this current sequence.
In 1952 the Kern County 7.5 Quake was centered less than five miles from the location of this quake.
SEPTEMBER 18, 2005
An earthquake with a preliminary magnitude of 3.1 rattled a section of California south of San Francisco. The quake was located between Santa Cruz and Menlo Park near the small community of Boulder Creek. The quake struck just after midnight.
Although the quake was small it was felt by many people. Within two hours over one thousand people have reported feeling the quake. Reports have come in from as far north as San Francisco and as far south as Santa Cruz.
A quake of this size is not expected to cause major damage or injuries.
Strongest shaking was felt around the Boulder Creek area. One local resident was quoted as saying "set things to swinging and rattled with windows/glasses."
The deadly 7.0 Loma Prieta earthquake struck this region during the evening of October 17, 1989. That quake was centered 9 miles northeast of Santa Cruz, or 18 miles southeast of this recent quake.
The map below (click for full size) shows where this quake and it's first five small aftershocks occurred in relation to boulder Creek.
An earthquake with a preliminary magnitude of 3.1 rattled a section of California south of San Francisco. The quake was located between Santa Cruz and Menlo Park near the small community of Boulder Creek. The quake struck just after midnight.
Although the quake was small it was felt by many people. Within two hours over one thousand people have reported feeling the quake. Reports have come in from as far north as San Francisco and as far south as Santa Cruz.
A quake of this size is not expected to cause major damage or injuries.
Strongest shaking was felt around the Boulder Creek area. One local resident was quoted as saying "set things to swinging and rattled with windows/glasses."
The deadly 7.0 Loma Prieta earthquake struck this region during the evening of October 17, 1989. That quake was centered 9 miles northeast of Santa Cruz, or 18 miles southeast of this recent quake.
The map below (click for full size) shows where this quake and it's first five small aftershocks occurred in relation to boulder Creek.
An important seismic event imperceptible to humans has begun in the Pacific Northwest as predicted, according to the government agency Geological Survey of Canada.
The chance of a major earthquake is 30 times higher now for a roughly two-week period, but the odds are still remote, scientists say
continue...
Late in the evening of September 6, 2005 we have seen a small swarm of earthquakes developing around the Fontana area.
1.3 2005/09/06 11:52 PM ( 2 mi) NW of Loma Linda, CA
1.0 2005/09/06 11:03 PM ( 4 mi) NNE of Fontana, CA
1.2 2005/09/06 10:56 PM ( 4 mi) NNW of Rialto, CA
1.2 2005/09/06 10:20 PM ( 2 mi) WSW of Loma Linda, CA
2.0 2005/09/06 10:09 PM ( 4 mi) NNE of Fontana, CA
1.0 2005/09/06 10:08 PM ( 4 mi) NW of Rialto, CA
1.2 2005/09/06 9:53 PM ( 4 mi) NW of Rialto, CA
1.4 2005/09/06 9:39 PM ( 4 mi) NNE of Fontana, CA
Do these small quakes mean a larger one is on the way? I did some research and I will present my findings and let you decide for yourself whether these are foreshocks are just another small swarm.
I searched past earthquakes which have occurred within 10km of this current activity.
Since 1950 there have been 17 earthquakes of 3.5 or greater. Seven of these had at least one foreshock.
Here is a map showing the specific location we are talking about. Quakes shown on the map come from the list below:
Mainshocks are listed in BOLD
3.9 5/15/1955 5:03 PM
4.1 6/28/1960 8:00 PM
3.8 8/21/1960 11:07 PM
3.7 2/25/1965 11:21 AM
3.7 9/2/1966 11:06 AM
3.6 10/14/1967 12:36 AM
3.5 3/17/1975 12:13 AM
1.9 1/7/1983 5:01 PM
2.7 1/8/1983 6:29 AM
4.0 1/8/1983 7:19 AM
1.6 2/18/1987 12:52 AM
1.4 2/18/1987 4:03 AM
1.7 2/21/1987 5:19 AM
4.0 2/21/1987 11:15 PM
1.2 10/11/1997 2:26 AM
1.5 10/11/1997 11:16 AM
1.1 10/13/1997 11:51 AM
3.9 10/14/1997 10:31 PM
1.4 11/1/1997 11:32 AM
3.6 11/4/1997 2:36 PM
0.9 1/29/1999 2:53 AM
3.6 1/30/1999 11:24 PM
3.5 4/9/2000 6:52 AM
3.7 7/25/2002 12:43 AM
1.4 7/26/2004 6:32 AM
3.8 7/28/2004 8:19 PM
1.6 1/2/2005 12:19 PM
1.4 1/2/2005 8:34 PM
1.1 1/2/2005 9:51 PM
1.1 1/2/2005 10:01 PM
1.5 1/2/2005 10:53 PM
2.7 1/4/2005 8:21 AM
1.6 1/4/2005 8:21 AM
1.8 1/4/2005 8:49 AM
3.1 1/4/2005 8:49 AM
1.1 1/4/2005 9:31 AM
1.3 1/4/2005 8:25 PM
1.6 1/5/2005 2:12 PM
1.6 1/5/2005 2:26 PM
2.5 1/6/2005 12:11 PM
3.6 1/6/2005 12:11 PM
2.5 1/6/2005 12:32 PM
3.3 1/6/2005 2:22 PM
4.4 1/6/2005 2:35 PM
Before you begin, take a few moments to consider the possible emergency situations or potential disasters you could face. These are situations and events that could impact you, your family or your neighborhood or community. Talk to your family members to get their views and assistance in building an action plan you and your family can follow to help reduce the possible effects of any emergency or disaster. You may want to consider helping your neighbours do the same, especially those who are elderly or disabled.
The following steps will help you develop a personal or family emergency plan:
MORE....
The following steps will help you develop a personal or family emergency plan:
MORE....
I have uploaded the 2004 earthquake maps. You can access them using the menu on the right sidebar.
I have decided to put the map and the list on the same page. The list appears below the map. Hopefully this will make it easier to view the data.
If you have any problems viewing or accessing the maps please leave a comment or send me an e-mail.
I have decided to put the map and the list on the same page. The list appears below the map. Hopefully this will make it easier to view the data.
If you have any problems viewing or accessing the maps please leave a comment or send me an e-mail.
UPDATED: 9/5/05 - 3:00 AM
NEXT UPDATE: 9/10/05 (unless there is a significant increase in activity)
NOTE: This report focuses on a very small radius (20km) around Obsidian Butte and does not include the entire Brawley Seismic Zone.
CURRENT SWARM STATS:
Total Quakes (8/25 - 9/5 2:15am) = 626
dates
8/25 = 1 quake
8/26 = 0 quakes
8/27 = 0 quakes
8/28 = 8 quakes
8/29 = 15 quakes
8/30 = 2 quakes
8/31 = 220 quakes
9/1 = 251 quakes
9/2 = 80 quakes
9/3 = 34 quakes
9/4 = 11 quakes
9/5 = 4 quakes (preliminary)
These quake counts are likely to change with time as USGS officials manually review seismographs.
magnitudes
0.1 - 0.9 = 2 quakes
1.0 - 1.9 = 426 quakes
2.0 - 2.9 = 165 quakes
3.0 - 3.9 = 25 quakes
4.0 - 4.9 = 7 quakes
5.0+ = 1 quake
Obsidian Butte is one of several areas in California known for its earthquake swarms. Unlike The Geysers in Northern California and Coso Junction in Central California, Southern California's Obsidian Butte is sporadic and inconsistent with its swarming. While the other swarm areas rarely see days without quakes, Obsidian Butte can go months without registering a single quake. But when they come, they come in a big way. However, when the quakes do come, they come in volume and not strength.
Obsidian Butte is not known for producing large destructive quakes. Obsidian Butte has seen thousands and thousands of quakes over the years (nearly 10,000 since 1960). However, since 1900 there has only been a handful of quakes that have been stronger than a 5.0. The largest being a 5.8 in 1981. That was also the last time a 5.0 or larger quake was centered in the vicinity of Obsidian Butte.
HERE is a map
showing all 5.0+ quakes that have occurred near the Salton Sea since 1900. On the map you will notice that there are just a few quakes in the immediate area of Obsidian Butte. All Obsidian Butte swarms occur tight against the South-East shoreline of the Salton Sea.
This swarm is following a classic pattern. Reviewing past swarm data shows that this one is making a run to be one of the strongest in many years.
we have seen some impressive swarms since 1960. Here is a list of the most active months (minimum of 50 quakes):
APR 1981: 1250 quakes
SEP 2005: 380 quakes (preliminary)
AUG 2005: 285 quakes (preliminary)
MAR 1989: 248 quakes
NOV 1976: 239 quakes
MAY 1981: 184 quakes
JUN 1979: 169 quakes
NOV 1987: 162 quakes
JUL 1987: 152 quakes
MAY 1983: 130 quakes
OCT 1999: 112 quakes
MAY 1996: 107 quakes
OCT 1979: 105 quakes
JAN 1998: 94 quakes
APR 2003: 88 quakes
MAY 2000: 86 quakes
JUN 2000: 83 quakes
MAR 2004: 77 quakes
JUL 1983: 76 quakes
AUG 1996: 75 quakes
FEB 1989: 69 quakes
DEC 1997: 67 quakes
DEC 1988: 58 quakes
AUG 1986: 56 quakes
OCT 1988: 54 quakes
FEB 2002: 53 quakes
OCT 1995: 51 quakes
JUL 1992: 50 quakes
SEP 2003: 50 quakes
April 26, 1981 was most likely the most active day for swarm quakes at Obsidian Butte. 609 earthquakes were recorded on that day. This day also saw the strongest swarm related earthquake which was a 5.8.
Interestingly there has only been three, maybe four quakes above 5.0 at Obsidian Butte since 1900. We have already talked about the largest, a 5.8 on April 26, 1981. The others were a 5.1 on November 4, 1976 and a 5.5 on July 29, 1950.
The 5.1 in 1976 was also in the middle of a swarm. That particular swarm started at 04:57 with a 2.6 quake. The 5.1 occurred at 10:41 and was the 42nd quake to occur in the sequence. This 1976 swarm died out by the end of November with a total quake count of over 200.
Here is a list of all Obsidian Butte quakes with a magnitude of 4.0 or higher. There really isn't very many considering Obsidian Butte has been the host to nearly 10,000 earthquakes since 1960.
5.8 4/26/81
5.1 9/1/2005
5.1 11/4/76
4.7 10/16/99
4.6 8/31/2005
4.6 3/6/89
4.5 9/1/2005
4.5 8/31/2005
4.5 10/16/99
4.5 8/31/2005
4.4 8/31/2005
4.4 7/13/83
4.4 11/4/76
4.3 8/31/2005
4.2 11/4/76
4.2 11/4/76
4.2 10/27/63
4.2 10/19/88
4.1 8/31/2005
4.1 6/13/79
4.1 11/4/76
4.1 11/4/76
4.1 11/4/76
4.1 11/4/76
4.0 12/31/97
4.0 4/26/76
CURRENT SWARM REPORT
This report will be updated periodically to reflect new quakes. The map below (click for larger view) shows only quakes from this current swarm. These quakes will not be added to the main maps and lists until their magnitudes and locations have been reviewed and updated.
CURRENT OBSIDIAN QUAKES OF 3.0 AND GREATER
click here to see all quakes
3.7 9/5/2005 1:53 AM 1E Obsidian Butte, CA
3.0 9/3/2005 4:17 AM 1ENE Obsidian Butte, CA
3.4 9/1/2005 11:44 PM 1ENE Obsidian Butte, CA
3.3 9/1/2005 8:55 PM 3SSW Obsidian Butte, CA
3.3 9/1/2005 8:54 PM 2SSW Obsidian Butte, CA
3.1 9/1/2005 8:50 PM 1SW Obsidian Butte, CA
3.2 9/1/2005 8:46 PM 2SW Obsidian Butte, CA
3.7 9/1/2005 7:46 PM 1SSW Obsidian Butte, CA
3.0 9/1/2005 6:38 PM 1SSW Obsidian Butte, CA
3.8 9/1/2005 6:30 PM 2WSW Obsidian Butte, CA
5.1 9/1/2005 6:27 PM 1S Obsidian Butte, CA
4.5 9/1/2005 6:27 PM 0NE Obsidian Butte, CA
3.0 9/1/2005 6:23 PM 2E Obsidian Butte, CA
3.2 9/1/2005 7:06 AM 3NE Obsidian Butte, CA
4.4 9/1/2005 6:50 AM 1NNE Obsidian Butte, CA
3.6 9/1/2005 6:50 AM 0E Obsidian Butte, CA
3.5 9/1/2005 6:48 AM 1E Obsidian Butte, CA
3.1 9/1/2005 1:24 AM 1E Obsidian Butte, CA
3.1 8/31/2005 9:15 PM 1ENE Obsidian Butte, CA
4.5 8/31/2005 4:32 PM 3ENE Obsidian Butte, CA
3.4 8/31/2005 4:29 PM 2E Obsidian Butte, CA
4.3 8/31/2005 4:27 PM 3ENE Obsidian Butte, CA
4.1 8/31/2005 4:07 PM 1ENE Obsidian Butte, CA
3.1 8/31/2005 3:59 PM 0ESE Obsidian Butte, CA
3.2 8/31/2005 3:54 PM 1SSE Obsidian Butte, CA
4.5 8/31/2005 3:50 PM 2E Obsidian Butte, CA
4.6 8/31/2005 3:47 PM 1SSE Obsidian Butte, CA
3.5 8/31/2005 3:45 PM 1E Obsidian Butte, CA
3.1 8/31/2005 3:17 PM 1E Obsidian Butte, CA
3.1 8/31/2005 2:49 PM 1NE Obsidian Butte, CA
3.4 8/31/2005 9:18 AM 3ENE Obsidian Butte, CA
3.7 8/31/2005 8:35 AM 2NE Obsidian Butte, CA
3.1 8/29/2005 12:39 AM 4NE Obsidian Butte, CA
Here are some links to articles about the swarm:
Is there a relationship between the Salton Sea earthquake swarm near Obsidian Butte and the hurricane Katrina? (conscious junkyard)
Kate Hutton Earthquake commentary (SCSN)
SCSN Special Report (SCSN)
NEXT UPDATE: 9/10/05 (unless there is a significant increase in activity)
NOTE: This report focuses on a very small radius (20km) around Obsidian Butte and does not include the entire Brawley Seismic Zone.
CURRENT SWARM STATS:
Total Quakes (8/25 - 9/5 2:15am) = 626
dates
8/25 = 1 quake
8/26 = 0 quakes
8/27 = 0 quakes
8/28 = 8 quakes
8/29 = 15 quakes
8/30 = 2 quakes
8/31 = 220 quakes
9/1 = 251 quakes
9/2 = 80 quakes
9/3 = 34 quakes
9/4 = 11 quakes
9/5 = 4 quakes (preliminary)
These quake counts are likely to change with time as USGS officials manually review seismographs.
magnitudes
0.1 - 0.9 = 2 quakes
1.0 - 1.9 = 426 quakes
2.0 - 2.9 = 165 quakes
3.0 - 3.9 = 25 quakes
4.0 - 4.9 = 7 quakes
5.0+ = 1 quake
Obsidian Butte is one of several areas in California known for its earthquake swarms. Unlike The Geysers in Northern California and Coso Junction in Central California, Southern California's Obsidian Butte is sporadic and inconsistent with its swarming. While the other swarm areas rarely see days without quakes, Obsidian Butte can go months without registering a single quake. But when they come, they come in a big way. However, when the quakes do come, they come in volume and not strength.
Obsidian Butte is not known for producing large destructive quakes. Obsidian Butte has seen thousands and thousands of quakes over the years (nearly 10,000 since 1960). However, since 1900 there has only been a handful of quakes that have been stronger than a 5.0. The largest being a 5.8 in 1981. That was also the last time a 5.0 or larger quake was centered in the vicinity of Obsidian Butte.
HERE is a map
showing all 5.0+ quakes that have occurred near the Salton Sea since 1900. On the map you will notice that there are just a few quakes in the immediate area of Obsidian Butte. All Obsidian Butte swarms occur tight against the South-East shoreline of the Salton Sea.
This swarm is following a classic pattern. Reviewing past swarm data shows that this one is making a run to be one of the strongest in many years.
we have seen some impressive swarms since 1960. Here is a list of the most active months (minimum of 50 quakes):
APR 1981: 1250 quakes
SEP 2005: 380 quakes (preliminary)
AUG 2005: 285 quakes (preliminary)
MAR 1989: 248 quakes
NOV 1976: 239 quakes
MAY 1981: 184 quakes
JUN 1979: 169 quakes
NOV 1987: 162 quakes
JUL 1987: 152 quakes
MAY 1983: 130 quakes
OCT 1999: 112 quakes
MAY 1996: 107 quakes
OCT 1979: 105 quakes
JAN 1998: 94 quakes
APR 2003: 88 quakes
MAY 2000: 86 quakes
JUN 2000: 83 quakes
MAR 2004: 77 quakes
JUL 1983: 76 quakes
AUG 1996: 75 quakes
FEB 1989: 69 quakes
DEC 1997: 67 quakes
DEC 1988: 58 quakes
AUG 1986: 56 quakes
OCT 1988: 54 quakes
FEB 2002: 53 quakes
OCT 1995: 51 quakes
JUL 1992: 50 quakes
SEP 2003: 50 quakes
April 26, 1981 was most likely the most active day for swarm quakes at Obsidian Butte. 609 earthquakes were recorded on that day. This day also saw the strongest swarm related earthquake which was a 5.8.
Interestingly there has only been three, maybe four quakes above 5.0 at Obsidian Butte since 1900. We have already talked about the largest, a 5.8 on April 26, 1981. The others were a 5.1 on November 4, 1976 and a 5.5 on July 29, 1950.
The 5.1 in 1976 was also in the middle of a swarm. That particular swarm started at 04:57 with a 2.6 quake. The 5.1 occurred at 10:41 and was the 42nd quake to occur in the sequence. This 1976 swarm died out by the end of November with a total quake count of over 200.
Here is a list of all Obsidian Butte quakes with a magnitude of 4.0 or higher. There really isn't very many considering Obsidian Butte has been the host to nearly 10,000 earthquakes since 1960.
5.8 4/26/81
5.1 9/1/2005
5.1 11/4/76
4.7 10/16/99
4.6 8/31/2005
4.6 3/6/89
4.5 9/1/2005
4.5 8/31/2005
4.5 10/16/99
4.5 8/31/2005
4.4 8/31/2005
4.4 7/13/83
4.4 11/4/76
4.3 8/31/2005
4.2 11/4/76
4.2 11/4/76
4.2 10/27/63
4.2 10/19/88
4.1 8/31/2005
4.1 6/13/79
4.1 11/4/76
4.1 11/4/76
4.1 11/4/76
4.1 11/4/76
4.0 12/31/97
4.0 4/26/76
CURRENT SWARM REPORT
This report will be updated periodically to reflect new quakes. The map below (click for larger view) shows only quakes from this current swarm. These quakes will not be added to the main maps and lists until their magnitudes and locations have been reviewed and updated.
CURRENT OBSIDIAN QUAKES OF 3.0 AND GREATER
click here to see all quakes
3.7 9/5/2005 1:53 AM 1E Obsidian Butte, CA
3.0 9/3/2005 4:17 AM 1ENE Obsidian Butte, CA
3.4 9/1/2005 11:44 PM 1ENE Obsidian Butte, CA
3.3 9/1/2005 8:55 PM 3SSW Obsidian Butte, CA
3.3 9/1/2005 8:54 PM 2SSW Obsidian Butte, CA
3.1 9/1/2005 8:50 PM 1SW Obsidian Butte, CA
3.2 9/1/2005 8:46 PM 2SW Obsidian Butte, CA
3.7 9/1/2005 7:46 PM 1SSW Obsidian Butte, CA
3.0 9/1/2005 6:38 PM 1SSW Obsidian Butte, CA
3.8 9/1/2005 6:30 PM 2WSW Obsidian Butte, CA
5.1 9/1/2005 6:27 PM 1S Obsidian Butte, CA
4.5 9/1/2005 6:27 PM 0NE Obsidian Butte, CA
3.0 9/1/2005 6:23 PM 2E Obsidian Butte, CA
3.2 9/1/2005 7:06 AM 3NE Obsidian Butte, CA
4.4 9/1/2005 6:50 AM 1NNE Obsidian Butte, CA
3.6 9/1/2005 6:50 AM 0E Obsidian Butte, CA
3.5 9/1/2005 6:48 AM 1E Obsidian Butte, CA
3.1 9/1/2005 1:24 AM 1E Obsidian Butte, CA
3.1 8/31/2005 9:15 PM 1ENE Obsidian Butte, CA
4.5 8/31/2005 4:32 PM 3ENE Obsidian Butte, CA
3.4 8/31/2005 4:29 PM 2E Obsidian Butte, CA
4.3 8/31/2005 4:27 PM 3ENE Obsidian Butte, CA
4.1 8/31/2005 4:07 PM 1ENE Obsidian Butte, CA
3.1 8/31/2005 3:59 PM 0ESE Obsidian Butte, CA
3.2 8/31/2005 3:54 PM 1SSE Obsidian Butte, CA
4.5 8/31/2005 3:50 PM 2E Obsidian Butte, CA
4.6 8/31/2005 3:47 PM 1SSE Obsidian Butte, CA
3.5 8/31/2005 3:45 PM 1E Obsidian Butte, CA
3.1 8/31/2005 3:17 PM 1E Obsidian Butte, CA
3.1 8/31/2005 2:49 PM 1NE Obsidian Butte, CA
3.4 8/31/2005 9:18 AM 3ENE Obsidian Butte, CA
3.7 8/31/2005 8:35 AM 2NE Obsidian Butte, CA
3.1 8/29/2005 12:39 AM 4NE Obsidian Butte, CA
Here are some links to articles about the swarm:
Is there a relationship between the Salton Sea earthquake swarm near Obsidian Butte and the hurricane Katrina? (conscious junkyard)
Kate Hutton Earthquake commentary (SCSN)
SCSN Special Report (SCSN)
A 3.8 earthquake centered along the California and Mexico border just south of San Diego has been felt throughout San Diego county. The quake struck at 11:53 PM on September 2, 2005.
I was able to capture this quake on video. The video clip is not very exciting and not much to see. But I am excited because it has already answered several questions I had. It will help in my research.
This is the first quake to be captured using my new "Klesko Cam".
Let me take a moment to explain what we are seeing on the video clip. First of all, the quake was heard before it was felt. As the video begins you will hear that I am watching the baseball game. I heard a loud roaring sound coming from outside. I stopped the TV. This is when the sound of the ball game stops. If you have a good sound system with a sub woofer you should be able to hear the deep roaring sound. At the same time you can see Ryan Klesko's head vibrate ever so slightly. Five seconds later the S waves (shear waves) arrived and you can see and hear the small jolt.
The loud whistling/ringing you hear is the quake alarm sounding. The quake alarm is a very sensitive device which detects seismic waves. This quake was rather small and the P waves (which was the loud roaring sound and slight vibration) were too slight to activate the alarm. The slower moving and more destructive S waves arrived five seconds later, when we heard the quake alarm.
ABOUT KLESKO CAM
Klesko Cam is designed to record a visual and audio record of earthquakes. The scene is a hodgepodge of household junk. In theory here is what we should be able to see:
First, we should hear the quake alarm start sounding. At the same time we may see Ryan Klesko's head start vibrating. The strength of the P wave vibration will be determined by the strength of the quake.
Next, we wait for the arrival of the S waves. The "S" or Shear Waves travel slower than the P waves. The timeframe between the "P" waves and the "S" waves are determined by how far away we are from the epicenter of the quake.
When the S waves arrives we should see Ryan Klesko start nodding or shaking his head (depending on the direction of the quake from our location).
If the quake is strong enough, we should see the dominoes start tumbling over. I only have one domino right now, but I'm saving up for more. I plan on setting up the dominoes in such a way that it can be determined which direction the quake came from by observing which dominoes fell and how they fell.
If the quake is even stronger, we will see the collapse of the "Diet Dr. Pepper Pyramid".
If the quake is even stronger you may see the camera start to tip over as you hear me in the background screaming and running around in a panic.
I was able to capture this quake on video. The video clip is not very exciting and not much to see. But I am excited because it has already answered several questions I had. It will help in my research.
This is the first quake to be captured using my new "Klesko Cam".
Let me take a moment to explain what we are seeing on the video clip. First of all, the quake was heard before it was felt. As the video begins you will hear that I am watching the baseball game. I heard a loud roaring sound coming from outside. I stopped the TV. This is when the sound of the ball game stops. If you have a good sound system with a sub woofer you should be able to hear the deep roaring sound. At the same time you can see Ryan Klesko's head vibrate ever so slightly. Five seconds later the S waves (shear waves) arrived and you can see and hear the small jolt.
The loud whistling/ringing you hear is the quake alarm sounding. The quake alarm is a very sensitive device which detects seismic waves. This quake was rather small and the P waves (which was the loud roaring sound and slight vibration) were too slight to activate the alarm. The slower moving and more destructive S waves arrived five seconds later, when we heard the quake alarm.
ABOUT KLESKO CAM
Klesko Cam is designed to record a visual and audio record of earthquakes. The scene is a hodgepodge of household junk. In theory here is what we should be able to see:
First, we should hear the quake alarm start sounding. At the same time we may see Ryan Klesko's head start vibrating. The strength of the P wave vibration will be determined by the strength of the quake.
Next, we wait for the arrival of the S waves. The "S" or Shear Waves travel slower than the P waves. The timeframe between the "P" waves and the "S" waves are determined by how far away we are from the epicenter of the quake.
When the S waves arrives we should see Ryan Klesko start nodding or shaking his head (depending on the direction of the quake from our location).
If the quake is strong enough, we should see the dominoes start tumbling over. I only have one domino right now, but I'm saving up for more. I plan on setting up the dominoes in such a way that it can be determined which direction the quake came from by observing which dominoes fell and how they fell.
If the quake is even stronger, we will see the collapse of the "Diet Dr. Pepper Pyramid".
If the quake is even stronger you may see the camera start to tip over as you hear me in the background screaming and running around in a panic.
Tomorrow, Friday September 2, is International Blogging for Disaster Relief Day. Why? Because it needs to be done.
If you have a blog, here’s what you can do. Sometime tomorrow, take a break from whatever it is you usually blog about, and post something constructive related to disaster relief. You can keep it topical to your blog; or, you can just dedicate blog space to listing websites where people can donate money (maybe even challenge people to match your donation). Or, share a story of a hurricane survivor. This goes for photo bloggers, podcasters and video bloggers as well - there’s no reason why this should be text-only.
Though this is inspired by Hurricane Katrina, the goal is to deal with disaster relief efforts worldwide, posting about a disaster relevant to your community. Post lists of supplies needed for victims of yesterday’s stampede in Baghdad. Post an update on how your family is recovering from the tsunami. Post multi-lingual resources for African families in Paris displaced by the recent apartment fires. Blog about whatever you choose, as long as it supports some kind of disaster assistance in a constructive way.
When you’ve posted to your blog, be sure to include a link to this Technorati tag: International Blogging for Disaster Relief Day. That way, when people follow that link, they’ll be able to find a collection of all relevant postings published throughout the blogosphere. There will also be an RSS feed on that page, which can be used to aggregate all of the postings and display them on a single webpage. I plan to aggregate them on my Katrina Aftermath blog; you can do the same. (Later, I’ll post a javascript on my Katrina blog to make it easy for anyone to do this - more soon.) One collection of disaster relief resources, countless bloggers. That’s the power of the blogosphere.
So please join me tomorrow and participate in International Blogging for Disaster Relief Day. Take a break from whatever it is you normally blog about - even if it’s just for one post - and give back to the Net.
If you have a blog, here’s what you can do. Sometime tomorrow, take a break from whatever it is you usually blog about, and post something constructive related to disaster relief. You can keep it topical to your blog; or, you can just dedicate blog space to listing websites where people can donate money (maybe even challenge people to match your donation). Or, share a story of a hurricane survivor. This goes for photo bloggers, podcasters and video bloggers as well - there’s no reason why this should be text-only.
Though this is inspired by Hurricane Katrina, the goal is to deal with disaster relief efforts worldwide, posting about a disaster relevant to your community. Post lists of supplies needed for victims of yesterday’s stampede in Baghdad. Post an update on how your family is recovering from the tsunami. Post multi-lingual resources for African families in Paris displaced by the recent apartment fires. Blog about whatever you choose, as long as it supports some kind of disaster assistance in a constructive way.
When you’ve posted to your blog, be sure to include a link to this Technorati tag: International Blogging for Disaster Relief Day. That way, when people follow that link, they’ll be able to find a collection of all relevant postings published throughout the blogosphere. There will also be an RSS feed on that page, which can be used to aggregate all of the postings and display them on a single webpage. I plan to aggregate them on my Katrina Aftermath blog; you can do the same. (Later, I’ll post a javascript on my Katrina blog to make it easy for anyone to do this - more soon.) One collection of disaster relief resources, countless bloggers. That’s the power of the blogosphere.
So please join me tomorrow and participate in International Blogging for Disaster Relief Day. Take a break from whatever it is you normally blog about - even if it’s just for one post - and give back to the Net.
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