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Showing posts from September, 2022

Volcanic Activity

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 Dominica: Volcanic Activity      In Dominica, there are nine different active volcanos. The volcanos haven't had a major eruption since 1997 and before that was one in 1880 and they were steam blasts. Residents in Dominica are nervous because they have ground shakes and think there is going to be another big blow soon. When Dominica has ground shakes it causes landslides which destroy parts of the land. Dominica is also sitting on tectonic plates which could also trigger the volcanos to erupt. Dominica is at high risk due to the fact that they have nine active volcanos. https://caribbeanvolcanoes.com/dominica-geology/ https://www.reuters.com/article/us-dominica-volcano/volcanic-caribbean-island-of-dominica-shaken-by-explosion-of-steam-and-gas-idUSKBN26937R

Earthquakes

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 Dominica      Dominica experiences an above average frequency of earthquakes. Over the course of the past year Dominica has had 18 earthquakes, and so has averaged more than one a month. While they occur with some frequency they are not typically large magnitude events. This year the largest earthquake in Dominica was a 5.1 magnitude. Dominica is the most geologically active island in the Caribbean because it is close to the margin of the Caribbean plate. This coupled with the presence of live volcanoes makes the possibility of a major earthquake very real.   1,000 × 1,294 https://earthquaketrack.com/p/dominica/recent

Dominica: Plate tectonic boundaries

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  Dominica's plate tectonic problems! Dominica is positioned right next to multiple tectonic plates. The Caribian plate and the Atlantic plate collide which breaks down and produces materials that turn into fuel for the volcanoes. The edge of the Cariban plate is 50 miles away from Dominica. With the plates being so close and crashing into each other it causes a lot of seismic activity. Dominica gets hit hard on the east and south sides of the island and it is known to be a common occurrence.  Dominica has a common tectonic movement means that the land has changed quite a bit over time. For example, they have volcanoes and lots of high mountain ranges that were formed with tectonic movement. A lot of changes happened to the land during the "Pliocene" period when lots of lava buildup was forming structures. https://www.avirtualdominica.com/project/geology/ https://www.researchgate.net/figure/Current-tectonic-map-of-the-Caribbean-Plate-boundaries-from-Bird-66-Uncertainty-i