Why Dr. Lucy Jones says we 'need' more earthquakes
00:29NBC's Lester Holt interviews seismologist Dr. Lucy Jones about the recent earthquakes hitting Southern California. More tonight on "NBC Nightly News" at 6:30 p.m. ET / 5:30 p.m. CT.
NBC's Lester Holt interviews seismologist Dr. Lucy Jones about the recent earthquakes hitting Southern California. More tonight on "NBC Nightly News" at 6:30 p.m. ET / 5:30 p.m. CT.