Earthquake hits northern Sweden

An earthquake rumbled through northern Sweden on Thursday night, according to local media reports.

The quake rattled residents near Umeå in southern Västerbotten, but neither police nor emergency services received any reports of injuries.

The Västerbottens-Kuriren newspaper reports that the Norwegian seismic research organization Norsar registered a quake measuring 2.46 on the Richter scale with an epicenter several dozen kilometres south of Burträsk, near Skellefteå.

The data from Norway corresponds with estimates by Uppsala University seismologist Reynir Bödvarsson.

“My guess is that this was an earthquake stronger than 2.3 but less than 3 on the Richter scale,” he told the newspaper.

Bödvarsson isn’t surprised that the quake occurred, as it took place in an area of Sweden which, relative to the rest of the country, often experiences detectable seismic tremors.

“About ten times a year we have an earthquake in Sweden around 2 [on the Richter scale] and about once we have a quake of 3. These happen primarily along the [east] coast from Uppland and northward, as well as in the area around Vänern lake and Skagerrak [on the west coast],”

But residents living in the area weren’t as well prepared to have the earth shaking beneath their feet.

“I was sitting and talking on the telephone with my girlfriend up in Åsänet. We heard the boom at exactly the same time. At my place, the glass shook in my bookcase,” said Roger Olofsson from Röbäck in an email to the newspaper.

Neither he nor his girlfriend found the earthquake to be a pleasant experience.

“She thought at first that a car had crashed into the wall of her home,” wrote Olofsson.

The largest earthquake ever recorded in Sweden occurred in 1904 outside the Koster islands on the west coast and measured nearly 6.0 on the Richter scale.


Swedish city Umeå has Europe’s cleanest air

Umeå in northeast Sweden, has been named as having the cleanest air in Europe, according to a new report by the European Environment Agency (EEA).

Swedish city Umeå has Europe's cleanest air
Umeå city centre, home to Europe's cleanest air. Photo: Henrik Montgomery/TT

The EEA published The European city air quality viewer, an interactive tool showing the air pollution levels in 323 cities in Europe. Air pollution is the biggest environmental health risk according to the EEA. 

“This city air quality viewer allows citizens to see for themselves in an easy-to-use way how their city is doing compared to others on air pollution. It provides concrete and local information which can empower citizens towards their local authorities to address the issues,” says Hans Bruyninckx, the executive director of the EEA.

The cleanest air out of all these cities can be found in northern Sweden, in the city of Umeå, which has a level of 3,7 micrograms of fine particulate matter, known as PM 2.5, per cubic metre of air.

The EEA’s classification of air quality defines four levels of air quality: “good”, “moderate”, “poor” and “very poor”, with “good air” defined as having under 10 micrograms of particulate matter per cubic meter.

Only 127 out of the 323 cities in Europe are found to pass the limit of “good air” set by both the EU and the WHO.

All of the Swedish cities included in the study – Uppsala, Stockholm, Gothenburg and Malmo as well as Umeå, had “good air” according to the report. Uppsala ranked 6th out of the 323 countries tested, while Stockholm ranked 9th, Gothenburg 23rd and Malmö 93rd. 

Second and third in the EEA’s ranking are Tammerfors in Finland and Funchal in Portugal.

 “Very poor air” was defined as over 25 micrograms of particulate matter per cubic meter of air and five cities on the index are considered to meet  this standard. Worst of all were Nowy Sacz in Poland, where 27.3 micrograms of particles were found per cubic meter of air, Cremona in Italy and Slavonski Brod in Croatia. 

Despite a reduction in emissions during the Covid-19 pandemic, the remaining 196 countries were all found to have above acceptable levels of air pollution. While lower levels of commuting have led to a decrease in levels of nitrogen dioxide in the atmosphere, levels of particulate matter have remained stagnant.

The EEA’s experts said that emissions of particulate matter are the result of many different processes, including combustion of fuel for heating of homes, industry, and agriculture.

“White air quality has improved markedly over the past years, air pollution remains stubbornly high in many cities across Europe,” says Bruyninckx.

Last year, an EEA report found that Europe’s air has gotten cleaner in the last decade, but that the bad air caused 417 000 premature deaths across 41 countries in 2018 alone.

A similar study in The Lancet Planetary Health earlier this year found that air pollution causes around 200 000 premature deaths per year in Europe. They stated that if the pollution was lowered across Europe to below the limit of 10 micrograms per cubic meters, the levels recommended by the WHO, around 52 000 deaths could be avoided each year.