California has 95% chance of damaging earthquake in next century, USGS map shows

. >>> WELCOME TO THE NEWS AT 5:30. THANK YOU FOR JOINING US. >> WE HAVE NEW INFORMATION ABOUT A LONG TIME CONCERN. EARTHQUAKES ARE MORE LIKELY TO HIT THEN WE PREVIOUSLY THOUGHT AND THE EARTHQUAKE THREAT GOES WELL BEHIND ESTABLISHED FAULTLINES. WE SPOKE TO THE USGS ABOUT THE NEW FINDINGS AND WE HAVE MORE NOW ON THE NEW DETAILS. WE ARE ALL EARS, ESPECIALLY WHEN IT COMES TO THIS. >> THE USGS SET OVER THE LAST FEW YEARS, THEY HAVE BEEN ABLE TO COMBINE EARLIER GEOLOGIC DATA WITH NEW TECHNOLOGY AND TOOLS TO CREATE AN UPDATED MAP, ONE THAT SHOWS MORE AREAS VULNERABLE TO DAMAGING EARTHQUAKES. >> ONE THING YOU WILL NOTICE ABOUT THE NEW USGS EARTHQUAKE MAP IS THAT THERE IS A LOT OF RED AND THAT MEANS A LOT OF AREA WHERE DAMAGING EARTHQUAKES ARE MOST LIKELY TO OCCUR. >> WE LOOK AT WHETHER THEY CAN RUPTURE AS SINGLE, SMALL EARTHQUAKES OR AS LARGE EARTHQUAKES THAT EXTEND UP AND DOWN THE SAN ANDREAS FAULT SYSTEM. >> MARK PETERSON, USGS GEOPHYSICIST AND LEAD AUTHOR OF THE NEW STUDY, ZEROED IN ON THE BAY AREA WHERE HE SAYS THAT SEDIMENT AMPLIFIES THE SHAKING DURING AN EARTHQUAKE MAKING THEM LAST LONGER AND POTENTIALLY DO MORE DAMAGE. >> THE NEW MODEL ALLOWS FOR A MUCH MORE COMPLEX RUPTURE ACROSS THE BAY AREA THAT WE THINK CAN OCCUR AND AFFECT GROUND SHAKING LEVELS PEOPLE WILL EXPERIENCE IN THE AREA. >> AND WHILE BAY AREA RESIDENTS KNOW ABOUT AND EXPECT EARTHQUAKES, SHOWING THEN THE NEW MAP GOT A REACTION. >> SO THAT IS A LITTLE ALARMING. >> A REACTION THAT USGS HOPES BUILDERS AND DEVELOPERS TAKE INTO ACCOUNT. >> BROADENING THIS OUT, THE

Channel: NBC Bay Area

Views: 36,642

Keywords: earthquake, usgs

Id: QHYWoU-xcNw

Length: 2min 1sec (121 seconds)

Published: Wed Jan 17 2024