Jan-Mar 2017 - Berkeley Seismo Lab in the News
Taking the Earth's Pulse - Listening to Seismic Noise
Monday, March 27th, 2017
Seismic noise is the rather nonspecific term for the fairly persistent, low frequency vibration of the Earth’s crust from any number of causes. Also known as ambient vibrations, it is referred to as ‘noise’ because it is ordinarily an unwanted part of the signals recorded by seismometers.Other disciplines besides seismology also term it ‘noise’ because it is a nuisance for things that are sensitive to vibrations, like precision telescopes or the commercial growing of crystals.On the other hand,measuring ambient vibrations can be helpful in engineering, where projects such as the building of bridges and high-rise buildings require calculations of the elastic properties of the soil to determine whether the structures will be susceptible to shifting due to earthquakes and other seismic events.
Read the entire article at Scientia
UC Berkeley Scientists Discuss Link Between Weather Cycles, Seismic Activity
Monday, February 27, 2017
BERKELEY, Calif. (KGO) --
Flooding is an immediate and obvious danger from our wet winter storms. There's also the potential for another kind of danger -- earthquakes.
All the rain and snow are sitting on our fault lines. It's heavy and it's more than we've had in years.
Pretty much every Bay Area city has far exceeded its normal amount of rain for the season, which started in October.
Gauges at the Sonoma County Airport have recorded nearly double the usual amount of rainfall. Even San Jose is at 137 percent of normal. As of Monday, the Sierra snow pack is at 188 percent of normal.
Scientists have long wondered if there is a connection between weather and earthquakes and now they're starting to get some answers. Read more at ABC7 News
Earthquake early-warning systems finally becoming a reality
February 6, 2017
Fox News Tech
Scientists and earthquake experts agree that it’s not if but when “the big one” – an earthquake registering magnitude 8.0 or higher – will hit the West Coast. In fact, seismic experts believe a major earthquake on the southern San Andreas Fault is long overdue.
When that earthquake hits, it has the potential to cause thousands of deaths, impact 3.5 million homes and cause hundreds of billions of dollars in damage.
With that in mind, public and private organizations are racing to get earthquake early-warning systems into the hands of residents, businesses and utility companies. Read more at Fox News Tech...