Geologists discovered that California may be about to be strike by a huge magnitude 7 earthquake after they found a series of smaller tremors under a lake near the San Andreas fault.
They issued a warning saying that in next three days a quake is more likely to be expected and the rumblings may activate a much larger quake affecting the southern part of state, including Los Angeles, San Diego and San Bernardino.
Thomas Jordan, director of the Southern California Earthquake Centre said we recognize that the probability of having a large earthquake goes up.
As per preliminary USGS data that there was approximately one per cent chance of a quake of magnitude seven or greater hitting the Southern San Andreas fault within the next week. Such a natural tragedy could kill 1,800 people and cost $200bn (£154bn) .This news comes after more than 140 smaller quakes rippled under the Salton Sea, a lake situated north of San Diego.
The possibility of this incident, on the other hand, decreases as each day passes. The tremors, three to seven miles beneath the Salton Sea, started around 4am Monday morning and continued for more than 24 hours.
Three quakes in the swarm measured above a magnitude of four. It is only the third time such a swarm has happened in the area since sensors were installed in 1932.
The swarm of quakes raised concern as the lake is just south of where the San Andreas fault ends, and the surrounding network of faults could trigger it to wake up for the first time since 1680.
The last time the Salton Sea quakes had strong repercussions was in 1987 when the 5.9 magnitude Whittier Narrows earthquake struck the San Gabriel Valley.