City on a fault

On the first week of October, Monday 3rd and Tuesday the 4th; San Bernardino city hall closed do to a to 1% increase of a magnitude 7.0 earthquake or higher to hit.  

Earthquakes in the Brawley seismic zone as of the evening of 09/30/2016

Earthquakes in the Brawley seismic zone as of the evening of 09/30/2016

In the USGS statement they said " Sept. 30, 2016, there is 0.006% to 0.2% chance (less than 1 in 10,000 to 1 in 500) of a magnitude 7 or greater earthquake being triggered on the Southern San Andreas Fault within the next seven days through October 7"

This come from the recent earthquake swarm near Bombay Beach, California, that started on Sept. 26, 2016, in the Brawley Seismic Zone, which lies near the southern terminus of the San Andreas Fault. The largest quake in the swarm was a magnitude 4.3. 

 

 

The city hall was bull in 1973 and has with stood two on the areas worst earthquakes, The Big Bear Earthquake that was a 6.5 and Landers Earthquake with a magnitude of 7.3; both on June 28th, 1992 along with the Northridge Earthquake on Jan. 17, 1994 that was a magnitude 6.7. 

BSP News/ Brian Spears

BSP News/ Brian Spears

 

City Manager Mike Scott told me " We are in a 7 story steel and glass building with what they call a soft-story bottom floor.  The City Hall was built pre-Sylmar Earthquake and is everything you would not want today" 

The city has niglectern to do any retrofitting on the building and has no plans to in the future, in fact they are moving out of city hall by the first of 2017. Mike said "We are a much smaller organization post-BK.  As such, we will eventually fit into the 2 smaller City-owned buildings on E Street (called the 201 or EDA buildings).  They need some remedial work first, so we will rent space for awhile in 3 other buildings-- but will ultimately end up in the 201/EDA buildings." 

 

I asked 'how you can move when the city is bankrupt and we are not getting 100% reimbursed for the December 2nd attacks" 

Mike told me "How can we stay in a dangerous building?

The Bankruptcy Recovery Plan presented to the court has long included provision for 20-year debt service to repair City Hall.  We are now saying we don’t want to fix the City Hall.  We’d rather spend the first money on the smaller building we already own.  That’s why we need to use a building we own.  We have millions of dollars of capital needs and not enough money to handle much of it.  We will prioritize those things that need attention."

As for the current City Hall, Mike says  "We will either partner with someone to get the repairs funded and the building reoccupied......or......we will eventually sell it altogether.  The building CAN be repaired. It just is not our priority for our limited capital dollars."

Scripps Institution of Oceanography/Valerie Sahakian

Scripps Institution of Oceanography/Valerie Sahakian

With all this happening recurches from Scripps Institution of Oceanography have also discovered a new fault line that parallels the San Andreas Fult Line. Valerie Sahakian, a researcher with the U.S. Geological Survey and lead author of the study, said "the newly named Salton Trough Fault has no connection to the recent quake swarm and the timing of the announcement is coincidental".  Sahakian also said "finding new fault lines is fairly rare, but the Salton Trough Fault was harder to locate since it runs underwater." 

 "The location of the fault in the eastern Salton Sea has made imaging it difficult and there is no associated small seismic events, which is why the fault was not detected earlier," principle investigator Neal Driscoll, a geologist at the University of California San Diego. To locate the STF, the research team that was composed of Scripps Institution of Oceanography, University of California and Nevada Seismological Laboratory, University of Nevada, Reno used instruments—including multi-channel seismic data, ocean-bottom seismometers, and light detection and ranging—to precisely map the deformation within the various sediment layers in and around the sea's bottom.