Earth Changes
Today's quake, 32km west-south-west of Nidri, on the island of Lefkada, registered as a 4.7 magnitude.
This was smaller than the one which struck off the same island yesterday, in which at least two people have been killed.
The US Geological Survey said the second quake occurred at around 5:18am UTC.
While aftershocks are common, and usually weaker than the original earthquake, the group warned there was sometimes a higher risk of damage because of any residual impact on buildings from the original quake. it also warned of possible tsunamis.
There are no reports currently of any injuries.
Residents in the town, south of Gothenburg, reported feeling the earthquake at around 7.15pm.
"The floor started shaking and the neighbours' dog barked," Camilla Rowan told Swedish newspaper the Gothenburg Post.
"My son called me and asked what was going on. It was only a few seconds," she added.
Others turned to social media to describe their experiences.

The situation in Section 13, Shah Alam, where water rose quickly on Tuesday evening following heavy rain.
Traders in the Seksyen 13 area within Shah Alam are not surprised the water level rose following heavy rain yesterday, but said it was the worst flooding in the area to date.
Khairudin Hamid, 59, has been working at the Proton showroom for the last six years and he has never seen the water rise so fast.
"The water was about a feet deep, and it seeped into my office space and the main showroom area. Some of the office equipment were damaged," he said.
Fairbanks was subjected to bitter temperatures of minus 22 degrees Sunday and was forecast to endure almost as bad on Monday night, according to forecasters.
"With these sorts of temperatures, people are at risk of frostbite within a minute of stepping outside, if not less time than that," according to Kevin Roth, lead meteorologist at The Weather Channel. "You've got to be bundled up from head to toe with no exposed skin. With this kind of cold, you walk outside and it really takes your breath away if you're not used to it."
Temperatures were about 20 degrees below average but were some way off record lows, Roth said, adding the state was not expected to go above zero until Thursday.
Hundreds of firefighters are battling major blazes that were reportedly sparked by lightning over the weekend.
The worst of the blazes are north of the coastal town of Esperance, 720km south-east of Perth.
Strong winds with gusts up to 90km/h (56mph) have hampered efforts to bring the fires under control.
They are the first serious bushfires of the Australian summer.
Gusts of 80mph threatened to topple trees, close roads and bridges and cripple transport networks while heavy rain threatened further flooding. Another furious storm system is about to rip in from the Atlantic on Wednesday whipping up 80mph gales and torrential downpours.
Swathes of the country are on heightened flood alert as rivers continue to swell amid forecasts of more heavy showers. A twist in the "atrocious" weather at the weekend will see a bitter Arctic blast trigger sub-zero temperatures and snow.
A double-whammy of misery will see torrential downpours clash with freezing northerly winds sparking warnings to expect blizzards. Wintry showers are forecast widely by the weekend with a dusting of white possible even to low ground in the south.
Scotland and the north will take the brunt of the winter blast as temperatures plummet to -6C (21F) allowing several centimetres of snow to settle. The Met Office has severe weather warnings in place for wind and rain into the early hours of Wednesday.
It said the worst of the battering was due last night (Tuesday) with southern, western and central regions braced to take the brunt.
"Looking at the doppler, there were signs of strong winds moving in two different directions so there was definitely a possibility of rotation (over land)," he said. "The conditions were there. We had a southeast change coming up the coast and low level northerly winds coming in to it." Mr Cearns said the funnel-like clouds sighted over land did not appear to reach the ground.
It's been called everything from a tornado to a funnel cloud and a water spout but whatever it is, it has got Townsville talking. Pictures of the weather phenomena have been posted on social media this morning after rain fell across the city overnight. The Townsville Bulletin contacted the Bureau of Meterology for an official identification but they have not been able to confirm what took place at this stage.
The earthquake, which struck at 11:29 p.m. local time on Tuesday, was centered about 31 kilometers (19 miles) southeast of Osh, the second largest city in Kyrgyzstan. It struck about 15.6 kilometers (9.7 miles) deep, making it a very shallow earthquake, according to the United States Geological Survey (USGS).
The European Mediterranean Seismological Center measured the earthquake at a preliminary 5.9, while the USGS measured it at 5.5.
The earthquake was widely felt in the region but there was no immediate word about damage or casualties.
Local officials were not immediately available to comment and no other details were available.
Nearly two dozen tornadoes were reported around Kansas on Monday afternoon and evening, part of a rare November outbreak that spanned three states in Tornado Alley.
The outbreak was the latest on record for northwest Kansas and so many tornadoes touched down in southwest Kansas that a weather official called it "unprecedented" for that part of the state in November.
A total of 41 tornadoes were reported in Kansas, Oklahoma and Texas, according to the National Oceanic and Atmospheric Administration. Significant damage occurred near Pampa, Texas, and lesser damage was reported elsewhere.
The 2-year-old pit bull named Diesel was in the family's living room playing with Lisa M. Cittadino's three daughters ages 7, 10 and 12, police said. Cittadino, 32, toid police she turned her back momentarily and then heard screams from her son and daughters.
Cittadino said she saw the dog attacking her son, and began to frantically try to get the dog to release his grip on her child, police said. Once the dog let go, she called 911 and began giving her son first aid, police said.
Comment: From the website Dogs Bite Decatur Al:
2015 - U.S. DOG BITE RELATED FATALITIES - 30 (12 CHILDREN - 18 ADULTS)
PIT BULL - 19
FREDERICK MD -
WEST MIFFLIN PA
WHEELING WV
JEFFERSON COUNTY AR
PAHRUMP NV
DALLAS TX
CHICAGO IL
LAWTON OK
PECOS TX
HENDERSON COUNTY NC
SHAKER HEIGHTS OH
REDBIRD OK (4 dogs-3 pit bulls and 1 rottweiler)
SPARTANBURG SC
MOCKSVILLE DAVIE COUNTY NC
NORTHSHORE RIVERSIDE COUNTY CA
BAKER HEIGHTS WV
VIDOR TX
OKLAHOMA CITY OK
ELMONT NY
MARSHALL NY
PIT BULL MIXES - 2
BROOKSVILLE FL
COLLEGE SPRINGS PAGE COUNTY IA
3 DOGS:
AMERICAN BULLDOG, RHODESIAN RIDGEBACK, LAB MIX??? - 1 ATTACK
MIAMI DADE FL
ROTTWEILER - 2
SULPHUR SPRINGS TX
MADISON COUNTY TN
UNKNOWN BREED DOGS - 5
COAL HILL JOHNSON COUNTY AR (RUMORED TO BE HIS SON'S PIT BULL MIXES)
ROSEBUD INDIAN RESERVATION SD
WASHINGTON GA (RUMORED TO BE PIT BULLS)
CANYON LAKE TX
AUTAUGA CO AL - FB PIC SHOWED A LARGE PIT BULL AND 2 OTHER DOGS ONE OF
WHICH WAS TIED UP AT THE TIME OF THE MAULING - SHEPHERD MIX?? AND A LAB MIX















Comment: One tornado ripped through the Texas panhandle on Monday night and was estimated to have been a mile wide. It reportedly leveled a Halliburton plant, causing chemical and gas leaks.