California is being rattled by aftershocks following a 6.4-magnitude earthquake on Thursday. The 10:33 a.m. quake was the largest to hit the region since 1994’s devastating Northridge temblor but was centered in the largely remote Searles Valley in San Bernardino County, about 100 miles north of Los Angeles, the Los Angeles Times reports. San Bernardino Country Fire said no injuries were reported but “buildings and roads have sustained varying degrees of damage.”

According to CalTech seismologist Lucy Jones, the aftershocks—of which there have already been dozens—will likely keep coming. “This does not make [the Big One] less likely,” Jones said. “There is about a 1 in 20 chance that this location will be having an even bigger earthquake in the next few days, that we have not yet seen the biggest earthquake of the sequence.”