A powerful 7.6 magnitude earthquake has hit northern Chile, just over 24 hours after an 8.2 tremor sparked a tsunami and killed six people.
After the second strike, a tsunami alert in Chile and Peru was re-issued but it was later lifted after waves of 2.4ft hit coastal areas.
The UK Foreign and Commonwealth Office said it was in contact with the National Emergency Services in Chile.
"If you are a British National affected by this incident you should monitor local media and follow the advice of the local authorities," it said.
Following the first earthquake, Chilean President Michelle Bachelet, who was among those evacuated, declared the area a disaster zone and promised troops and extra police to keep order and reopen roads blocked by landslides and falling debris.
LATAM Airlines cancelled several flights to Antofagasta, Iquique and Arica in northern Chile.
The first quake was strongly felt in neighbouring Peru and the coastal region of Ica was partially evacuated.
There were no reports of damage from the latest quake, but the aftershock caused buildings to wobble in the port of Iquique, one of the cities also hit by Tuesday night’s quake.
Iquique is a strategic port close to one of Chile’s main copper mining regions and has experienced unusually high seismic activity in recent weeks.
Chile is one of the world’s most seismically active countries but has strict quake-proof construction regulations and protocols in place to deal effectively with evacuations.
