The Country Of Sweden

         What is a volcano? According to NASA, "A  volcano  is an opening on the surface of a planet or moon that allows material warmer than its surroundings to escape from its interior. When this material escapes, it causes an eruption." A volcano can be very scary, considering when they erupt, they spew lava everywhere, and can burn anything in sight. Now what exactly causes volcanoes? Again, according to NASA, "Volcanoes occur when material significantly warmer than its surroundings is erupted onto the surface of a planet or moon from its interior. On Earth, the erupted material can be liquid rock ("lava" when it's on the surface, "magma" when it's underground), ash, cinders, and/or gas." Another question might be- where are the most active volcanoes? I have included a picture below, that you can look at to see where volcanoes are located all over the world. In certain areas of the world, volcanoes can greatly affect the area and the...

    As you can see from the map below, Sweden, (circled in blue) has a very low earthquake percentage. From what was discussed last week, Sweden has a low seismicity area. Very little can be found on big earthquakes happening in Sweden. With that being said, Sweden does have its little shakers. To repeat from last week, m ost of Sweden's Earthquakes are felt in the south-west by Lake  Vanern, as well as Norr Botten, and along the north-east coast. Sweden's low seismicity is thanks to that it is located in a very old and secure part of earth's crust. The earthquakes felt in the country are very small making them insignificant and non-damage causing.  https://ec.europa.eu/research-and-innovation/en/horizon-magazine/mapping-europes-earthquake-risk https://www.stralsakerhetsmyndigheten.se/contentassets/4e89ae88294f451dadb6cc4d7d0dbb57/earthquake-activity-in-sweden.pdf

    As seen below, Sweden, (circled in blue), is located on the Eurasian Tectonic Plate. Sweden does also have some fault lines. They are estimated to be of late-glacial age. The biggest fault being 150km in length. These fault lines were developed in the Precambrian, meaning the earliest eon in history. Recent patterns of the seismic data still show that the forces which produced the fault could still be active.      While Sweden is on the Eurasian Plate, and has its faults, it has a low seismicity area. Most of Sweden's Earthquakes are felt in the south-west by Lake  Vanern, as well as Norr Botten, and along the north-east coast.  https://earthhow.com/7-major-tectonic-plates https://www.tandfonline.com/doi/abs/10.1080/11035897809452533?journalCode=sgff19 https://www.stralsakerhetsmyndigheten.se/contentassets/4e89ae88294f451dadb6cc4d7d0dbb57/earthquake-activity-in-sweden.pdf