How are engineers working to make roads and buildings safer?
Earthquake engineers are working to make roads and buildings safer in the event of a major earthquakes. This includes both improving the design of new buildings and bridges as well as strengthening older units to incorporate the latest advances in seismic and structural engineering. The Federal Emergency Management Agency plays a central role in funding research and development for the purpose of mitigating the effects of earthquakes.
What is the probability that an earthquake will occur in the Los Angeles Area? In the San Francisco Bay area?
What is the likelihood of a large earthquake at location X? Is it safe to go to X since they've been having a lot of earthquakes lately?
What is seismic hazard? What is a seismic hazard map? How are they made? How are they used? Why are there different maps, and which one should I use?
USGS collaborates with key academic, state, local, and industry partners to provide a new look at what could happen during a major earthquake in the San Francisco Bay Area.
Early on the morning of August 24, 2014, Loren Turner was awoken by clattering window blinds, a moving bed, and the sound of water splashing out of his backyard pool. He experienced what is now named the “South Napa Earthquake.”
A new report issued by the American Red Cross and the U.S. Geological Survey documents the Chilean response and recovery efforts following the Feb. 2010 magnitude 8.8 earthquake and the lessons that California should learn from this disaster.
Twenty years after the Loma Prieta earthquake caused loss of life and widespread property damage, advances in science, technology and engineering have the San Francisco Bay Area better prepared for the next big earthquake. When the Loma Prieta quake hit just after 5 p.m. October 17, 1989 – 20 years ago Saturday – the digital age was in its infancy.
On October 17, minutes before the scheduled start of the third game of the 1989 World Series in San Francisco, a magnitude 6.9 earthquake rocked the California coast from Monterey to San Francisco. Centered near Loma Prieta peak in the mountains south of San Jose, the quake killed 63 people and caused an estimated $6 billion to $10 billion in property loss.
What if you knew that a magnitude 7.8 earthquake would happen in less than three weeks? In a new video interview, USGS earthquake scientist Dr. Lucy Jones explains that millions of Southern Californians will be preparing as if they do know, thanks to the Great Southern California ShakeOut.
Scientists today unveiled a hypothetical Scenario describing how a magnitude 7.8 Southern California earthquake -similar to the recent earthquake in China- would impact the region, causing loss of lives and massive damage to infrastructure, including critical transportation, power, and water systems.
A new geologic map of surficial deposits in the nine-county San Francisco Bay region that can be used to evaluate earthquake hazards has been released in digital form by the U.S. Geological Survey in Menlo Park.
Photographs showing examples of types of damage to lifelines and infrastructure expected to occur along the Hayward Fault in the San Francisco Bay region, California, in an earthquake like the magnitude-7 mainshock modeled in the HayWired Scenario.
Pavement buckling and tented sidewalk resulting from the South Napa Earthquake. Photograph credit: Thomas Holzer, USGS
Ground shaking triggered liquefaction in a subsurface layer of sand, producing differential lateral and vertical movement in a overlying carapace of unliquified sand and silt, which moved from right to left toward the Pajaro River. This mode of ground failure, termed "lateral spreading," is a principal cause of liquefaction-related earthquake damage.