Earth Changes
It hit in the Andes region in a sparsely populated area.
The US Geological Survey said the epicentre was at a depth of 257 kilometres (160 miles). The agency said most big quakes in South America occur at a maximum depth of 70 kilometres.
The quake hit at 0850 GMT about 27 kilometres northeast of the town of Azangaro, near the border with Bolivia.
The quake occurred about 2km below the surface near Newdigate, the British Geological Survey (BGS) said.
The tremor was felt at 03:42 GMT and measured 3.1, making it the biggest earthquake of the current "swarm".
One resident of Redhill said his house was shaking for between four and five seconds.
Gatwick Airport confirmed tremors had been felt overnight in the terminals, but a spokesman said operations had not been affected.
Comment: A resident in Surrey comments that she has lived in the area for 47 years and that she had never experienced an earthquake before fracking exploration began:
And Surrey isn't the only area of the UK where fracking induced earthquakes are causing serious concern, in Blackpool the obvious correlation between fracking and earthquakes has resulted in the operations being shutdown, albeit temporarily: Fracking causes strongest quake yet at new site in UK
See also:
- Geologists discover London sitting on two serious fault lines, capital at risk of dangerous earthquake
- M4.5 earthquake and aftershock in B.C., Canada, "very likely" caused by fracking
- 3rd earthquake in less than 14 days hits Surrey, UK - Same area as April's quakes

The animal, identified as a hoodwinker sunfish, washed up on a shore last week at UC Santa Barbara's Coal Oil Point Reserve.
But what researchers initially thought was a common type of sunfish turned out to be much rarer - a newly discovered species thought to make its home almost entirely in the oceans of the Southern Hemisphere. This was in Santa Barbara, California — much further north than anyone expected to find it.
"I literally, nearly fell off my chair," Marianne Nyegaard of Murdoch University in Australia said in a statement. Nyegaard, a sunfish expert, discovered and described the Mola tecta sunfish — commonly known as the hoodwinker sunfish — in 2017.
The more common Mola mola ocean sunfish is known to swim in the Santa Barbara Channel. The hoodwinker has only been found in the Southern Hemisphere, aside from just one known example that washed up in The Netherlands in 1889.

Jonathan Von Renner checks on his son Jonathan Jr., and friend Emilio Ontivares in lower Guerneville, Wednesday, Feb. 27, 2019.
Tom Orr began moving lyrics and scripts, clothes and photo albums from his apartment as authorities ordered evacuations along a rising Northern California river threatening to hit a historic crest.
But the actor and writer couldn't move costumes, computers and performance videos. So he shifted those to his loft bed about 10 feet up and prayed they would survive. On Wednesday, television news footage showed muddy brown water nearly swallowing his ground-level unit and much of the tiny town of Guerneville, part of Sonoma County's famed wine country and a popular tourist destination.
Residents awoke Thursday to sunshine and began assessing the damage while the water started receding. Orr, 48, was among those still unable to get into his house after the rain-swollen Russian River reached nearly 46 feet (14 meters) Wednesday night, its highest level in more than 20 years.
"I feel so helpless just sitting here and waiting before I can go back and start salvaging whatever I can," Orr said in text messages to The Associated Press before preparing for a friend to take him by canoe to work at the Main Street Bistro, one of the few places in town that did not flood.
Sonoma County officials said they expected the communities of Guerneville and Monte Rio to be accessible by car Friday. The two-day storm rendered the towns reachable only by boat on Wednesday.
One National Weather Service station measured 20 inches of rain in 48 hours.
Comment: Over 520mm (20 inches) of rain in 48 hours, evacuations as rivers rise in Northern California

Seven-year-old Cole Ruff works on digging a snow fort in a large pile of snow after his father shoveled their driveway Monday, Feb. 25, 2019.
Between 13 and 16 inches of snow had fallen on Bend by midday, with close to 20 inches near La Pine, said Marc Austin, a meteorologist with the National Weather Service in Pendleton. More snow continued to fall throughout the day but began to taper off late in the afternoon.
"Conditions are still going to stay pretty nasty even though it might not be snowing," Austin said.
A one-day snow total — from 7 a.m. Sunday to 7 a.m. Monday — of 12.5 inches set a new record in Bend as the highest February total since the agency started tracking it in 1901. The previous record was 12 inches, on Feb. 18, 1953.

Seven-year-old Cole Ruff works on digging a snow fort in a large pile of snow after his father shoveled their driveway Monday, Feb. 25, 2019.
Modern agriculture is faltering as the climate changes. From crop losses to Zombie deer, Christian breaks it down.
Sources
The park said they saw over 70-inches of snow at the park over a 48 hour time period, burying their ski lifts and causing power fluctuations.
The park is advising all snowboarders and skiers to stay on the groomed runs due to hazardous conditions and bottomless powder.
To keep up-to-date on the conditions at the park, click here.
On February 17, the driver was clearing the snow-covered roads of South Lake Tahoe when he struck the back of a car that was illegally parked on the street. The driver contacted police to start the process of getting the vehicle towed out of the way, but as police and the driver started to dig out the car, to their surprise, a woman stuck her hand out of the car window waving for help.
She said she had been there four to five hours, but the amount of snow covering her car led officials to believe she possibly was there longer.

“Several office windows at NWS Caribou are covered in deep snow and drifts,” the National Weather service wrote. “This is a common view looking out windows in Northern Maine.”
Meteorologist Mark Bloomer said this is way above the average, which is 81 inches for the end of February, and they're tracking a few storms this weekend and early next week.
The record snowfall was set in 2008 at 197.5 inches, Bloomer said.
The windchills and hours of snow drifts Tuesday night helped make the 8- to 10-foot snow walls in the parking lot of the Caribou National Weather Service headquarters, Bloomer said.










Comment: Massive M7.5 earthquake strikes Ecuador-Peru border