 The first shaking took place at 00:37 local time (03:37 UTC), which according to the University of Chile Seismological Service had a 4.7 magnitude in the Richter scale.
<coherence>  The first shaking took place at 00:37 local time (03:37 UTC), which according to the University of Chile Seismological Service had a 4.7 magnitude in the Richter scale.
 The first shaking took place at 00:37 local time (03:37 UTC), which according to the had a 4.7 magnitude in the Richter scale.