Measuring 2.0 on the Richter scale, the quake’s epicenter was underneath the island of Kungsholmen. Awakened in their sleep, many residents, and even the police, initially thought the noise caused by the tremor was a large explosion, and emergency services were flooded with calls.
No damage or injuries have been reported. While earthquakes are rare in the Stockholm area, there is more seismic activity in northern Sweden and in the southwest.
”It is very rare that such a big quake happens in the middle of Stockholm,” seismologist Reynir Bodvarsson with Uppsala University says. ”Over the last few hundred years, it has only happened a couple of times.”
The strongest earthquake ever felt in Sweden was off the west coast in 1904, and reached around 6 on the Richter scale.